sweatSmile/neet-biology-qa · Datasets at Hugging Face

question stringlengths 34 139	subject stringclasses 1 value	choices listlengths 4 4	answer stringclasses 4 values
Which one of the following pairs is correctly matched with respect to their function in flowering plants?	biology	[ "Phloem – Transport of water and minerals", "Xylem – Transport of organic food", "Endosperm – Nutrition for developing embryo", "Stomata – Absorption of water" ]	C
The Casparian strip, a characteristic feature in plant roots, is mainly composed of which substance?	biology	[ "Lignin", "Cutin", "Suberin", "Cellulose" ]	C
Which type of placentation is found in the ovary of a tomato plant?	biology	[ "Axile", "Parietal", "Basal", "Free central" ]	A
In which phylum do animals exhibit a water vascular system used for locomotion and food capture?	biology	[ "Annelida", "Echinodermata", "Arthropoda", "Mollusca" ]	B
In mammals, which structure prevents polyspermy during fertilization?	biology	[ "Zona pellucida", "Amnion", "Chorion", "Allantois" ]	A
Which of the following features is unique to monocot stems but not found in dicot stems?	biology	[ "Vascular bundles are scattered", "Presence of cambium", "Secondary growth", "Vascular bundles are arranged in a ring" ]	A
Which of the following is a characteristic feature of dicot leaf anatomy but not monocot leaf anatomy?	biology	[ "Presence of stomata on both surfaces", "Parallel venation", "Isobilateral symmetry", "Palisade parenchyma present below the upper epidermis" ]	D
In which animal does fertilization occur externally in water, and the development is indirect?	biology	[ "Frog", "Earthworm", "Pigeon", "Rabbit" ]	A
Which of the following features is characteristic of dicot leaf anatomy but not monocot leaf anatomy?	biology	[ "Presence of bulliform cells", "Parallel venation", "Isobilateral leaf structure", "Palisade parenchyma layer" ]	D
In mammals, which structure is responsible for the production of cerebrospinal fluid?	biology	[ "Choroid plexus", "Pia mater", "Arachnoid villi", "Dura mater" ]	A
Which one of the following is a floral formula for a hypogynous flower with actinomorphic symmetry and five free petals?	biology	[ "⊕ K5 C5 A5 G(5)", "⊕ K(5) C5 A5 G1", "⊕ K5 C5 A5 G1", "⚥ K(5) C(5) A5 G(2)" ]	C
In frogs, which structure acts as the primary organ of excretion?	biology	[ "Malpighian tubules", "Cloaca", "Green glands", "Kidneys" ]	D
Which of the following is a characteristic feature of dicot stem observed in T.S. (transverse section)?	biology	[ "Scattered vascular bundles", "Closed vascular bundles", "Presence of cambium between xylem and phloem", "Absence of endodermis" ]	C
Which hormone is primarily responsible for stimulating milk ejection (let-down reflex) in mammals?	biology	[ "Prolactin", "Oxytocin", "Progesterone", "Estrogen" ]	B
In which of the following plant tissues are companion cells associated?	biology	[ "Xylem vessels", "Phloem sieve tubes", "Cork cambium", "Trichomes" ]	B
In cockroach, which structure is responsible for the storage and release of sperm during copulation?	biology	[ "Seminal vesicles", "Mushroom glands", "Spermatheca", "Malpighian tubules" ]	C
Which tissue is mainly responsible for the increase in girth of dicot stems?	biology	[ "Cork cambium", "Intercalary meristem", "Vascular cambium", "Apical meristem" ]	C
The excretory organ of earthworm is	biology	[ "Malpighian tubules", "Green glands", "Nephridia", "Flame cells" ]	C
Which of the following is a modification of the stem for vegetative propagation in ginger?	biology	[ "Rhizome", "Tuber", "Corm", "Bulb" ]	A
Which enzyme is responsible for the breakdown of hydrogen peroxide in animal cells?	biology	[ "Catalase", "Amylase", "Pepsin", "Lipase" ]	A
In which group of plants does double fertilization occur?	biology	[ "Bryophytes", "Gymnosperms", "Pteridophytes", "Angiosperms" ]	D
Which of the following is the primary nitrogenous excretory product in most aquatic insects?	biology	[ "Uric acid", "Ammonia", "Urea", "Creatinine" ]	B
Which of the following plants exhibits phyllotaxy known as whorled arrangement?	biology	[ "Nerium", "China rose", "Mustard", "Sunflower" ]	A
In cockroach, which structure is responsible for the storage of sperm received from the male?	biology	[ "Seminal vesicle", "Spermatheca", "Ovary", "Ootheca" ]	B
Which of the following is the major photosynthetic pigment in green plants?	biology	[ "Chlorophyll a", "Carotene", "Xanthophyll", "Chlorophyll b" ]	A
In cockroach, which structure is responsible for excretion?	biology	[ "Malpighian tubules", "Green glands", "Nephridia", "Flame cells" ]	A
In dicot stems, the vascular bundles are characterized by being	biology	[ "Closed and scattered", "Open and arranged in a ring", "Closed and arranged in a ring", "Open and scattered" ]	B
The Casparian strip found in endodermal cells of plant roots is mainly composed of	biology	[ "Cutin", "Lignin", "Suberin", "Cellulose" ]	C
Which one of the following is a characteristic feature of dicotyledonous stems?	biology	[ "Scattered vascular bundles", "Closed vascular bundles", "Vascular bundles arranged in a ring", "Absence of cambium" ]	C
In mammals, which structure acts as the functional unit of the kidney?	biology	[ "Nephron", "Alveolus", "Neuron", "Hepatocyte" ]	A
The process by which root nodules are formed in leguminous plants involves which of the following bacteria?	biology	[ "Azotobacter", "Rhizobium", "Clostridium", "Nitrosomonas" ]	B
Which of the following hormones is responsible for apical dominance in plants?	biology	[ "Gibberellin", "Cytokinin", "Auxin", "Ethylene" ]	C
The presence of casparian strips is characteristic of which plant tissue?	biology	[ "Endodermis", "Pericycle", "Phloem", "Cortex" ]	A
Which of the following plants exhibits phyllotaxy of whorled type?	biology	[ "China rose", "Mustard", "Nerium", "Sunflower" ]	C
In mammals, the corpus callosum is a structure that connects the	biology	[ "Right and left cerebral hemispheres", "Medulla and pons", "Cerebrum and cerebellum", "Spinal cord and brainstem" ]	A
In cockroach, the respiratory exchange of gases takes place through	biology	[ "Book lungs", "Gills", "Tracheae", "Skin" ]	C
Which of the following is the main photosynthetic tissue in leaves?	biology	[ "Epidermis", "Palisade parenchyma", "Collenchyma", "Sclerenchyma" ]	B
Which hormone is primarily responsible for stimulating the molting process in insects?	biology	[ "Ecdysone", "Insulin", "Gibberellin", "Oxytocin" ]	A
The casparian strip is found in which part of a plant root?	biology	[ "Cortex", "Endodermis", "Pericycle", "Epidermis" ]	B
Which one of the following pairs is correctly matched regarding the type of inflorescence and an example plant?	biology	[ "Racemose – Sunflower", "Cymose – Jasmine", "Spike – Wheat", "Umbel – Bougainvillea" ]	C
Which organelle is responsible for the synthesis of ribosomal RNA in a eukaryotic animal cell?	biology	[ "Nucleolus", "Endoplasmic reticulum", "Golgi apparatus", "Mitochondria" ]	A
The organ of Corti, involved in hearing, is located in which part of the mammalian ear?	biology	[ "Tympanic membrane", "Eustachian tube", "Cochlea", "Semicircular canals" ]	C
Which one of the following is a characteristic feature of dicotyledonous stem in T.S.?	biology	[ "Scattered vascular bundles", "Open vascular bundles arranged in a ring", "Absence of cambium", "Presence of bulliform cells" ]	B
Which structure in cockroaches is responsible for detecting sound vibrations?	biology	[ "Malpighian tubules", "Antennae", "Tympanal organ", "Cerci" ]	C
Which of the following is a characteristic feature of dicot leaves?	biology	[ "Parallel venation", "Reticulate venation", "Presence of bulliform cells", "Closed vascular bundles" ]	B
In the human alimentary canal, the enzyme pepsin acts optimally in which of the following pH ranges?	biology	[ "2.0–3.5", "6.5–7.5", "8.0–9.0", "10.5–11.5" ]	A
In which plant tissue are companion cells found associated with sieve tube elements?	biology	[ "Xylem", "Phloem", "Collenchyma", "Sclerenchyma" ]	B
Which of the following is the primary nitrogenous waste in reptiles?	biology	[ "Ammonia", "Urea", "Uric acid", "Creatinine" ]	C
Which of the following is an example of a parenchymatous tissue in plants?	biology	[ "Collenchyma", "Sclerenchyma", "Cortex", "Tracheid" ]	C
Which of the following animals exhibits indirect development?	biology	[ "Frog", "Earthworm", "Paramecium", "Leech" ]	A
The inner lining of the human stomach is protected from the corrosive action of hydrochloric acid by	biology	[ "A layer of mucus", "Pancreatic juice", "Salivary amylase", "Bile salts" ]	A
Which of the following plants exhibits phylloclade as a modification for water storage?	biology	[ "Opuntia", "Pisum", "Mango", "Triticum" ]	A
Which one of the following is a feature of dicot stems but not monocot stems?	biology	[ "Scattered vascular bundles", "Polyarch xylem", "Presence of cambium", "Closed vascular bundles" ]	C
The primary nitrogenous waste excreted by birds is	biology	[ "Urea", "Ammonia", "Uric acid", "Creatinine" ]	C
The main function of casparian strips in the endodermis of plant roots is to	biology	[ "Facilitate passive movement of water through symplast", "Prevent backflow of water and solutes into cortex", "Allow free movement of ions into xylem", "Store food material" ]	B
In cockroaches, which of the following structures is responsible for excretion of nitrogenous wastes?	biology	[ "Malpighian tubules", "Green glands", "Nephridia", "Coxal glands" ]	A
Which of the following is the main photosynthetic tissue in the leaves of dicot plants?	biology	[ "Palisade parenchyma", "Epidermis", "Phloem", "Collenchyma" ]	A
In cockroaches, the function of Malpighian tubules is to	biology	[ "Transport oxygen", "Excrete nitrogenous wastes", "Secrete digestive enzymes", "Store food" ]	B
The root nodules in leguminous plants are primarily associated with	biology	[ "Phosphate solubilization", "Nitrogen fixation", "Water absorption", "Potassium uptake" ]	B
Which of the following is an essential mineral element required for the biosynthesis of chlorophyll in plants?	biology	[ "Calcium", "Magnesium", "Potassium", "Iron" ]	B
The Malpighian tubules in insects are primarily involved in	biology	[ "Digestion", "Respiration", "Excretion", "Circulation" ]	C
The primary function of the tapetum in the anther is to	biology	[ "Protect developing pollen grains from pathogens", "Nourish the developing microspores", "Facilitate pollen tube growth", "Form the outer wall of the anther" ]	B
In cockroach, the excretory organs called Malpighian tubules open into the	biology	[ "Hepatic caeca", "Foregut", "Midgut", "Hindgut" ]	D
Which of the following plants exhibits phylloclade modification?	biology	[ "Opuntia", "Pisum", "Solanum", "Musa" ]	A
Which pigment is primarily responsible for the red coloration in the petals of Hibiscus flowers?	biology	[ "Chlorophyll a", "Xanthophyll", "Anthocyanin", "Carotene" ]	C
Which of the following cells is responsible for the secretion of gastric acid in the stomach?	biology	[ "Chief cells", "Goblet cells", "Parietal cells", "Enteroendocrine cells" ]	C
The seed coat of a dicot seed is primarily derived from which part of the ovule?	biology	[ "Integuments", "Funicle", "Nucellus", "Chalaza" ]	A
Which of the following is a photosynthetic pigment found in cyanobacteria but absent in higher plants?	biology	[ "Chlorophyll b", "Phycocyanin", "Xanthophyll", "Carotene" ]	B
Which of the following is a distinguishing feature of dicot stem in T.S. (transverse section)?	biology	[ "Vascular bundles are scattered", "Presence of hypodermis made of collenchyma", "Closed vascular bundles", "Absence of endodermis" ]	B
Which of the following is a characteristic feature of dicot stem anatomy?	biology	[ "Scattered vascular bundles", "Closed vascular bundles", "Vascular bundles arranged in a ring", "Presence of bulliform cells" ]	C
Which of the following animals exhibits a water vascular system?	biology	[ "Earthworm", "Cockroach", "Frog", "Starfish" ]	D
Which of the following is the main photosynthetic tissue in the leaf of a dicot plant?	biology	[ "Palisade parenchyma", "Collenchyma", "Sclerenchyma", "Phloem" ]	A
In mammals, the corpus luteum is primarily responsible for secreting:	biology	[ "Estrogen", "Progesterone", "Testosterone", "Oxytocin" ]	B
Which of the following plants exhibits phylloclade as a modification for photosynthesis?	biology	[ "Opuntia", "Pisum", "Brassica", "Solanum" ]	A
The hormone responsible for ecdysis (molting) in insects is:	biology	[ "Thyroxine", "Ecdysone", "Insulin", "Oxytocin" ]	B
Which of the following is a characteristic feature of dicotyledonous roots?	biology	[ "Polyarch vascular bundles", "Pith is well developed", "Xylem and phloem are arranged in a ring", "Secondary growth is absent" ]	C
In cockroach, the respiratory system opens to the exterior through:	biology	[ "Malpighian tubules", "Spiracles", "Tracheoles", "Book lungs" ]	B
Which hormone is primarily responsible for seed dormancy in plants?	biology	[ "Auxin", "Gibberellin", "Abscisic acid", "Cytokinin" ]	C
In frogs, the structure responsible for sound production is known as:	biology	[ "Glottis", "Laryngo-tracheal chamber", "Pharynx", "Buccal cavity" ]	B
Which structure in dicot stems is responsible for the formation of annual rings?	biology	[ "Cork cambium", "Vascular cambium", "Endodermis", "Pericycle" ]	B
In honey bees, the phenomenon where unfertilized eggs develop into males is called:	biology	[ "Paedogenesis", "Parthenocarpy", "Arrhenotoky", "Polyembryony" ]	C
The Malpighian tubules in cockroaches are primarily concerned with:	biology	[ "Respiration", "Excretion", "Digestion", "Reproduction" ]	B
The pericarp of a drupe fruit like mango is differentiated into which three distinct layers?	biology	[ "Epicarp, mesocarp, endocarp", "Exocarp, endosperm, mesocarp", "Testa, tegmen, perisperm", "Exine, intine, nucellus" ]	A
In which group of vertebrates is the heart completely four-chambered and oxygenated and deoxygenated blood are fully separated?	biology	[ "Amphibians", "Reptiles", "Aves", "Fishes" ]	C
The Casparian strip is found in which part of a plant root?	biology	[ "Cortex", "Pericycle", "Endodermis", "Epidermis" ]	C
Which of the following plant hormones predominantly promotes seed dormancy?	biology	[ "Gibberellin", "Auxin", "Abscisic acid", "Cytokinin" ]	C
The malpighian tubules in insects primarily function in:	biology	[ "Respiration", "Excretion", "Digestion", "Reproduction" ]	B
In which phase of mitosis do the centromeres of chromosomes split and sister chromatids move toward opposite poles?	biology	[ "Prophase", "Anaphase", "Metaphase", "Telophase" ]	B
Which of the following animals is a viviparous mammal that lays eggs?	biology	[ "Kangaroo", "Dolphin", "Echidna", "Bat" ]	C
Which plant hormone is primarily responsible for the induction of seed dormancy?	biology	[ "Auxin", "Cytokinin", "Abscisic acid", "Gibberellin" ]	C
In frogs, the cloaca is a common chamber for the passage of:	biology	[ "Only digestive wastes", "Only urine", "Digestive wastes, urine, and gametes", "Only gametes" ]	C
Which plant hormone is primarily responsible for promoting fruit ripening in climacteric fruits?	biology	[ "Auxin", "Cytokinin", "Ethylene", "Gibberellin" ]	C
Which of the following structures is present in the wall of Gram-positive bacteria but absent in Gram-negative bacteria?	biology	[ "Peptidoglycan layer", "Teichoic acids", "Outer membrane", "Lipopolysaccharide" ]	B
In cockroach, the function of Malpighian tubules is:	biology	[ "Respiration", "Excretion", "Digestion", "Locomotion" ]	B
In which plant tissue are the cells living, thin-walled, and capable of cell division throughout life?	biology	[ "Collenchyma", "Parenchyma", "Sclerenchyma", "Meristem" ]	D
Which one of the following structures is present in the exoskeleton of cockroach but absent in the exoskeleton of earthworm?	biology	[ "Chitin", "Calcium carbonate", "Collagen", "Keratin" ]	A
Which of the following is the primary photosynthetic tissue in most leaves?	biology	[ "Palisade parenchyma", "Epidermis", "Collenchyma", "Sclerenchyma" ]	A
In cockroaches, which structure stores sperm received during copulation?	biology	[ "Seminal vesicle", "Spermatheca", "Ovary", "Testis" ]	B
Which of the following plant hormones is primarily responsible for the stimulation of cell division in the root apical meristem?	biology	[ "Abscisic acid", "Cytokinin", "Ethylene", "Gibberellin" ]	B
Which of the following plants exhibits phyllotaxy of alternate leaves?	biology	[ "China rose", "Alstonia", "Calotropis", "Guava" ]	A

Which one of the following pairs is correctly matched with respect to their function in flowering plants?

biology

[ "Phloem – Transport of water and minerals", "Xylem – Transport of organic food", "Endosperm – Nutrition for developing embryo", "Stomata – Absorption of water" ]

C

The Casparian strip, a characteristic feature in plant roots, is mainly composed of which substance?

biology

[ "Lignin", "Cutin", "Suberin", "Cellulose" ]

C

Which type of placentation is found in the ovary of a tomato plant?

biology

[ "Axile", "Parietal", "Basal", "Free central" ]

A

In which phylum do animals exhibit a water vascular system used for locomotion and food capture?

biology

[ "Annelida", "Echinodermata", "Arthropoda", "Mollusca" ]

B

In mammals, which structure prevents polyspermy during fertilization?

biology

[ "Zona pellucida", "Amnion", "Chorion", "Allantois" ]

A

Which of the following features is unique to monocot stems but not found in dicot stems?

biology

[ "Vascular bundles are scattered", "Presence of cambium", "Secondary growth", "Vascular bundles are arranged in a ring" ]

A

Which of the following is a characteristic feature of dicot leaf anatomy but not monocot leaf anatomy?

biology

[ "Presence of stomata on both surfaces", "Parallel venation", "Isobilateral symmetry", "Palisade parenchyma present below the upper epidermis" ]

D

In which animal does fertilization occur externally in water, and the development is indirect?

biology

[ "Frog", "Earthworm", "Pigeon", "Rabbit" ]

A

Which of the following features is characteristic of dicot leaf anatomy but not monocot leaf anatomy?

biology

[ "Presence of bulliform cells", "Parallel venation", "Isobilateral leaf structure", "Palisade parenchyma layer" ]

D

In mammals, which structure is responsible for the production of cerebrospinal fluid?

biology

[ "Choroid plexus", "Pia mater", "Arachnoid villi", "Dura mater" ]

A

Which one of the following is a floral formula for a hypogynous flower with actinomorphic symmetry and five free petals?

biology

[ "⊕ K5 C5 A5 G(5)", "⊕ K(5) C5 A5 G1", "⊕ K5 C5 A5 G1", "⚥ K(5) C(5) A5 G(2)" ]

C

In frogs, which structure acts as the primary organ of excretion?

biology

[ "Malpighian tubules", "Cloaca", "Green glands", "Kidneys" ]

D

Which of the following is a characteristic feature of dicot stem observed in T.S. (transverse section)?

biology

[ "Scattered vascular bundles", "Closed vascular bundles", "Presence of cambium between xylem and phloem", "Absence of endodermis" ]

C

Which hormone is primarily responsible for stimulating milk ejection (let-down reflex) in mammals?

biology

[ "Prolactin", "Oxytocin", "Progesterone", "Estrogen" ]

B

In which of the following plant tissues are companion cells associated?

biology

[ "Xylem vessels", "Phloem sieve tubes", "Cork cambium", "Trichomes" ]

B

In cockroach, which structure is responsible for the storage and release of sperm during copulation?

biology

[ "Seminal vesicles", "Mushroom glands", "Spermatheca", "Malpighian tubules" ]

C

Which tissue is mainly responsible for the increase in girth of dicot stems?

biology

[ "Cork cambium", "Intercalary meristem", "Vascular cambium", "Apical meristem" ]

C

The excretory organ of earthworm is

biology

[ "Malpighian tubules", "Green glands", "Nephridia", "Flame cells" ]

C

Which of the following is a modification of the stem for vegetative propagation in ginger?

biology

[ "Rhizome", "Tuber", "Corm", "Bulb" ]

A

Which enzyme is responsible for the breakdown of hydrogen peroxide in animal cells?

biology

[ "Catalase", "Amylase", "Pepsin", "Lipase" ]

A

In which group of plants does double fertilization occur?

biology

[ "Bryophytes", "Gymnosperms", "Pteridophytes", "Angiosperms" ]

D

Which of the following is the primary nitrogenous excretory product in most aquatic insects?

biology

[ "Uric acid", "Ammonia", "Urea", "Creatinine" ]

B

Which of the following plants exhibits phyllotaxy known as whorled arrangement?

biology

[ "Nerium", "China rose", "Mustard", "Sunflower" ]

A

In cockroach, which structure is responsible for the storage of sperm received from the male?

biology

[ "Seminal vesicle", "Spermatheca", "Ovary", "Ootheca" ]

B

Which of the following is the major photosynthetic pigment in green plants?

biology

[ "Chlorophyll a", "Carotene", "Xanthophyll", "Chlorophyll b" ]

A

In cockroach, which structure is responsible for excretion?

biology

[ "Malpighian tubules", "Green glands", "Nephridia", "Flame cells" ]

A

In dicot stems, the vascular bundles are characterized by being

biology

[ "Closed and scattered", "Open and arranged in a ring", "Closed and arranged in a ring", "Open and scattered" ]

B

The Casparian strip found in endodermal cells of plant roots is mainly composed of

biology

[ "Cutin", "Lignin", "Suberin", "Cellulose" ]

C

Which one of the following is a characteristic feature of dicotyledonous stems?

biology

[ "Scattered vascular bundles", "Closed vascular bundles", "Vascular bundles arranged in a ring", "Absence of cambium" ]

C

In mammals, which structure acts as the functional unit of the kidney?

biology

[ "Nephron", "Alveolus", "Neuron", "Hepatocyte" ]

A

The process by which root nodules are formed in leguminous plants involves which of the following bacteria?

biology

[ "Azotobacter", "Rhizobium", "Clostridium", "Nitrosomonas" ]

B

Which of the following hormones is responsible for apical dominance in plants?

biology

[ "Gibberellin", "Cytokinin", "Auxin", "Ethylene" ]

C

The presence of casparian strips is characteristic of which plant tissue?

biology

[ "Endodermis", "Pericycle", "Phloem", "Cortex" ]

A

Which of the following plants exhibits phyllotaxy of whorled type?

biology

[ "China rose", "Mustard", "Nerium", "Sunflower" ]

C

In mammals, the corpus callosum is a structure that connects the

biology

[ "Right and left cerebral hemispheres", "Medulla and pons", "Cerebrum and cerebellum", "Spinal cord and brainstem" ]

A

In cockroach, the respiratory exchange of gases takes place through

biology

[ "Book lungs", "Gills", "Tracheae", "Skin" ]

C

Which of the following is the main photosynthetic tissue in leaves?

biology

[ "Epidermis", "Palisade parenchyma", "Collenchyma", "Sclerenchyma" ]

B

Which hormone is primarily responsible for stimulating the molting process in insects?

biology

[ "Ecdysone", "Insulin", "Gibberellin", "Oxytocin" ]

A

The casparian strip is found in which part of a plant root?

biology

[ "Cortex", "Endodermis", "Pericycle", "Epidermis" ]

B

Which one of the following pairs is correctly matched regarding the type of inflorescence and an example plant?

biology

[ "Racemose – Sunflower", "Cymose – Jasmine", "Spike – Wheat", "Umbel – Bougainvillea" ]

C

Which organelle is responsible for the synthesis of ribosomal RNA in a eukaryotic animal cell?

biology

[ "Nucleolus", "Endoplasmic reticulum", "Golgi apparatus", "Mitochondria" ]

A

The organ of Corti, involved in hearing, is located in which part of the mammalian ear?

biology

[ "Tympanic membrane", "Eustachian tube", "Cochlea", "Semicircular canals" ]

C

Which one of the following is a characteristic feature of dicotyledonous stem in T.S.?

biology

[ "Scattered vascular bundles", "Open vascular bundles arranged in a ring", "Absence of cambium", "Presence of bulliform cells" ]

B

Which structure in cockroaches is responsible for detecting sound vibrations?

biology

[ "Malpighian tubules", "Antennae", "Tympanal organ", "Cerci" ]

C

Which of the following is a characteristic feature of dicot leaves?

biology

[ "Parallel venation", "Reticulate venation", "Presence of bulliform cells", "Closed vascular bundles" ]

B

In the human alimentary canal, the enzyme pepsin acts optimally in which of the following pH ranges?

biology

[ "2.0–3.5", "6.5–7.5", "8.0–9.0", "10.5–11.5" ]

A

In which plant tissue are companion cells found associated with sieve tube elements?

biology

[ "Xylem", "Phloem", "Collenchyma", "Sclerenchyma" ]

B

Which of the following is the primary nitrogenous waste in reptiles?

biology

[ "Ammonia", "Urea", "Uric acid", "Creatinine" ]

C

Which of the following is an example of a parenchymatous tissue in plants?

biology

[ "Collenchyma", "Sclerenchyma", "Cortex", "Tracheid" ]

C

Which of the following animals exhibits indirect development?

biology

[ "Frog", "Earthworm", "Paramecium", "Leech" ]

A

The inner lining of the human stomach is protected from the corrosive action of hydrochloric acid by

biology

[ "A layer of mucus", "Pancreatic juice", "Salivary amylase", "Bile salts" ]

A

Which of the following plants exhibits phylloclade as a modification for water storage?

biology

[ "Opuntia", "Pisum", "Mango", "Triticum" ]

A

Which one of the following is a feature of dicot stems but not monocot stems?

biology

[ "Scattered vascular bundles", "Polyarch xylem", "Presence of cambium", "Closed vascular bundles" ]

C

The primary nitrogenous waste excreted by birds is

biology

[ "Urea", "Ammonia", "Uric acid", "Creatinine" ]

C

The main function of casparian strips in the endodermis of plant roots is to

biology

[ "Facilitate passive movement of water through symplast", "Prevent backflow of water and solutes into cortex", "Allow free movement of ions into xylem", "Store food material" ]

B

In cockroaches, which of the following structures is responsible for excretion of nitrogenous wastes?

biology

[ "Malpighian tubules", "Green glands", "Nephridia", "Coxal glands" ]

A

Which of the following is the main photosynthetic tissue in the leaves of dicot plants?

biology

[ "Palisade parenchyma", "Epidermis", "Phloem", "Collenchyma" ]

A

In cockroaches, the function of Malpighian tubules is to

biology

[ "Transport oxygen", "Excrete nitrogenous wastes", "Secrete digestive enzymes", "Store food" ]

B

The root nodules in leguminous plants are primarily associated with

biology

[ "Phosphate solubilization", "Nitrogen fixation", "Water absorption", "Potassium uptake" ]

B

Which of the following is an essential mineral element required for the biosynthesis of chlorophyll in plants?

biology

[ "Calcium", "Magnesium", "Potassium", "Iron" ]

B

The Malpighian tubules in insects are primarily involved in

biology

[ "Digestion", "Respiration", "Excretion", "Circulation" ]

C

The primary function of the tapetum in the anther is to

biology

[ "Protect developing pollen grains from pathogens", "Nourish the developing microspores", "Facilitate pollen tube growth", "Form the outer wall of the anther" ]

B

In cockroach, the excretory organs called Malpighian tubules open into the

biology

[ "Hepatic caeca", "Foregut", "Midgut", "Hindgut" ]

D

Which of the following plants exhibits phylloclade modification?

biology

[ "Opuntia", "Pisum", "Solanum", "Musa" ]

A

Which pigment is primarily responsible for the red coloration in the petals of Hibiscus flowers?

biology

[ "Chlorophyll a", "Xanthophyll", "Anthocyanin", "Carotene" ]

C

Which of the following cells is responsible for the secretion of gastric acid in the stomach?

biology

[ "Chief cells", "Goblet cells", "Parietal cells", "Enteroendocrine cells" ]

C

The seed coat of a dicot seed is primarily derived from which part of the ovule?

biology

[ "Integuments", "Funicle", "Nucellus", "Chalaza" ]

A

Which of the following is a photosynthetic pigment found in cyanobacteria but absent in higher plants?

biology

[ "Chlorophyll b", "Phycocyanin", "Xanthophyll", "Carotene" ]

B

Which of the following is a distinguishing feature of dicot stem in T.S. (transverse section)?

biology

[ "Vascular bundles are scattered", "Presence of hypodermis made of collenchyma", "Closed vascular bundles", "Absence of endodermis" ]

B

Which of the following is a characteristic feature of dicot stem anatomy?

biology

[ "Scattered vascular bundles", "Closed vascular bundles", "Vascular bundles arranged in a ring", "Presence of bulliform cells" ]

C

Which of the following animals exhibits a water vascular system?

biology

[ "Earthworm", "Cockroach", "Frog", "Starfish" ]

D

Which of the following is the main photosynthetic tissue in the leaf of a dicot plant?

biology

[ "Palisade parenchyma", "Collenchyma", "Sclerenchyma", "Phloem" ]

A

In mammals, the corpus luteum is primarily responsible for secreting:

biology

[ "Estrogen", "Progesterone", "Testosterone", "Oxytocin" ]

B

Which of the following plants exhibits phylloclade as a modification for photosynthesis?

biology

[ "Opuntia", "Pisum", "Brassica", "Solanum" ]

A

The hormone responsible for ecdysis (molting) in insects is:

biology

[ "Thyroxine", "Ecdysone", "Insulin", "Oxytocin" ]

B

Which of the following is a characteristic feature of dicotyledonous roots?

biology

[ "Polyarch vascular bundles", "Pith is well developed", "Xylem and phloem are arranged in a ring", "Secondary growth is absent" ]

C

In cockroach, the respiratory system opens to the exterior through:

biology

[ "Malpighian tubules", "Spiracles", "Tracheoles", "Book lungs" ]

B

Which hormone is primarily responsible for seed dormancy in plants?

biology

[ "Auxin", "Gibberellin", "Abscisic acid", "Cytokinin" ]

C

In frogs, the structure responsible for sound production is known as:

biology

[ "Glottis", "Laryngo-tracheal chamber", "Pharynx", "Buccal cavity" ]

B

Which structure in dicot stems is responsible for the formation of annual rings?

biology

[ "Cork cambium", "Vascular cambium", "Endodermis", "Pericycle" ]

B

In honey bees, the phenomenon where unfertilized eggs develop into males is called:

biology

[ "Paedogenesis", "Parthenocarpy", "Arrhenotoky", "Polyembryony" ]

C

The Malpighian tubules in cockroaches are primarily concerned with:

biology

[ "Respiration", "Excretion", "Digestion", "Reproduction" ]

B

The pericarp of a drupe fruit like mango is differentiated into which three distinct layers?

biology

[ "Epicarp, mesocarp, endocarp", "Exocarp, endosperm, mesocarp", "Testa, tegmen, perisperm", "Exine, intine, nucellus" ]

A

In which group of vertebrates is the heart completely four-chambered and oxygenated and deoxygenated blood are fully separated?

biology

[ "Amphibians", "Reptiles", "Aves", "Fishes" ]

C

The Casparian strip is found in which part of a plant root?

biology

[ "Cortex", "Pericycle", "Endodermis", "Epidermis" ]

C

Which of the following plant hormones predominantly promotes seed dormancy?

biology

[ "Gibberellin", "Auxin", "Abscisic acid", "Cytokinin" ]

C

The malpighian tubules in insects primarily function in:

biology

[ "Respiration", "Excretion", "Digestion", "Reproduction" ]

B

In which phase of mitosis do the centromeres of chromosomes split and sister chromatids move toward opposite poles?

biology

[ "Prophase", "Anaphase", "Metaphase", "Telophase" ]

B

Which of the following animals is a viviparous mammal that lays eggs?

biology

[ "Kangaroo", "Dolphin", "Echidna", "Bat" ]

C

Which plant hormone is primarily responsible for the induction of seed dormancy?

biology

[ "Auxin", "Cytokinin", "Abscisic acid", "Gibberellin" ]

C

In frogs, the cloaca is a common chamber for the passage of:

biology

[ "Only digestive wastes", "Only urine", "Digestive wastes, urine, and gametes", "Only gametes" ]

C

Which plant hormone is primarily responsible for promoting fruit ripening in climacteric fruits?

biology

[ "Auxin", "Cytokinin", "Ethylene", "Gibberellin" ]

C

Which of the following structures is present in the wall of Gram-positive bacteria but absent in Gram-negative bacteria?

biology

[ "Peptidoglycan layer", "Teichoic acids", "Outer membrane", "Lipopolysaccharide" ]

B

In cockroach, the function of Malpighian tubules is:

biology

[ "Respiration", "Excretion", "Digestion", "Locomotion" ]

B

In which plant tissue are the cells living, thin-walled, and capable of cell division throughout life?

biology

[ "Collenchyma", "Parenchyma", "Sclerenchyma", "Meristem" ]

D

Which one of the following structures is present in the exoskeleton of cockroach but absent in the exoskeleton of earthworm?

biology

[ "Chitin", "Calcium carbonate", "Collagen", "Keratin" ]

A

Which of the following is the primary photosynthetic tissue in most leaves?

biology

[ "Palisade parenchyma", "Epidermis", "Collenchyma", "Sclerenchyma" ]

A

In cockroaches, which structure stores sperm received during copulation?

biology

[ "Seminal vesicle", "Spermatheca", "Ovary", "Testis" ]

B

Which of the following plant hormones is primarily responsible for the stimulation of cell division in the root apical meristem?

biology

[ "Abscisic acid", "Cytokinin", "Ethylene", "Gibberellin" ]

B

Which of the following plants exhibits phyllotaxy of alternate leaves?

biology

[ "China rose", "Alstonia", "Calotropis", "Guava" ]

A