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NDA GK Previous Papers Chapterwise MCQs - Biology (Botany)
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NDA GK Previous Papers Chapterwise MCQs - Biology (Botany)
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25 Questions

1. Which of the following statements about sexual reproduction in flowering plants are correct ?
1. Stamen is present in the centre of a flower.
2. Stamen produces pollen grains in the ovary.
3. The swollen bottom part of carpel is the ovary.
4. The fusion of germ cells gives rise to zygote. Select the correct answer using the code given below.
2. Cell wall of any fungus is different from plants in having
3. DIRECTIONS (Qs. 56-58) : The following items consists of two statements, Statement I and Statement
II. You are to examine these two statements carefully and select the answers to these items using the code given below.Code:
4. Which one of the following cell organelles does NOT possess its own genetic material encoding proteins ?
5. The common edible mushroom is a
6. When heat rays are reflected from Earth, gases like Carbon dioxide, Nitrous oxide do not allow them to escape back to the space causing our planet to heat up. These gases are known as
7. To which one of the following types of organism do mushrooms belong?
8. In plants, which one of the following tissues is dead ?
9. Consider the following statements :
1. Different plant species grow together.
2. Light cannot penetrate into the lower strata full of undergrowth. Which of the following types of vegetation is characterised by the above ?
10. Which one of the following processes takes place in lakes during entrophication?
11. Which of the following plants is referred to as a living fossil ?
12. Which one of the following contains powerful oxidative enzymes and helps in removing toxic substances from cells?
13. Who among the following discovered the antibiotic producing fungus from Penicillium genus?
14. Consider the following plants :
1. Jasmine 2. Sugarcane
3. Turmeric Which of the above is / are propagated by vegetative method ?
15. Who of the following invented the cotton gin that separates the seeds from cotton three hundred times faster than by hand?
16. Which one among the following is a plant hormone?
17. The oxygen released during photosynthesis of green plants. comes from the breakdown of which one of the following ?
18. Which one among the following nutrients is a structural component of the cell wall of plants?
19. Energy is required for maintenance of life. It is obtained by a process called
20. From which one of the following is the percentage of reflected amount of radiation highest?
21. Leaves of which of the following plants are not used for the rearing of silkworms?
22. Which one of the following cell organelles does NOT possess nucleic acid ?
23. Which one of the following is the principal structural element of a living cell ?
24. Which of the following statements about vitamins are correct?
1. Vitamin C is essential to make connective tissue in body.
2. Vitamin D is needed for synthesis of eye pigment.
3. Vitamin B12 helps in maturation of RBC.
4. Vitamin C is required to make use of calcium absorbed from the intestine. Select the correct answer using the code given below.
25. Consider the following statements :
1. In algae, the reproductive organs are single-celled.
2. Fern plants lack true vascular system. Which of the statements given above is/are correct ?

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