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NEET Practice: Biology 5
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1.
The mode of nutrition in green plants is:
(a) Heterotrophic
(b) Autotrophic
(c) Saprophytic
(d) Parasitic
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Correct Answer: (b) Autotrophic
Explanation:
Green plants prepare their own food by photosynthesis
2.
The organelle that contains digestive enzymes is:
(a) Mitochondria
(b) Lysosome
(c) Ribosome
(d) Golgi apparatus
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Correct Answer: (b) Lysosome
Explanation:
Lysosomes are called suicidal bags due to digestive enzymes
3.
The hormone that regulates the "fight or flight" response is:
(a) Insulin
(b) Adrenaline
(c) Thyroxine
(d) Estrogen
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Correct Answer: (b) Adrenaline
Explanation:
Adrenaline prepares the body for emergency situations
4.
The tissue that transports food in plants is:
(a) Xylem
(b) Phloem
(c) Parenchyma
(d) Collenchyma
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Correct Answer: (b) Phloem
Explanation:
Phloem transports organic food (translocation)
5.
The process of cell division in somatic cells is called:
(a) Meiosis
(b) Mitosis
(c) Fertilisation
(d) Gametogenesis
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Correct Answer: (b) Mitosis
Explanation:
Mitosis maintains the chromosome number in somatic cells
6.
The respiratory organ in humans is:
(a) Kidney
(b) Lungs
(c) Heart
(d) Liver
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Correct Answer: (b) Lungs
Explanation:
Lungs are the primary organs of respiration
7.
The genetic material in most organisms is:
(a) RNA
(b) DNA
(c) Protein
(d) Lipid
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Correct Answer: (b) DNA
Explanation:
DNA is the hereditary material in most living organisms
8.
The largest organ in the human body is:
(a) Liver
(b) Skin
(c) Brain
(d) Lungs
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Correct Answer: (b) Skin
Explanation:
Skin is the largest organ by surface area
9.
The process by which plants make food is called:
(a) Respiration
(b) Photosynthesis
(c) Transpiration
(d) Translocation
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Correct Answer: (b) Photosynthesis
Explanation:
Photosynthesis converts light energy into chemical energy
10.
The basic unit of life is:
(a) Tissue
(b) Organ
(c) Cell
(d) Organ system
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Correct Answer: (c) Cell
Explanation:
Cell is the structural and functional unit of life