Sets
Biology Set 7
30 questions 1. The evaporation of water vapour through stomata is called:
2. Complete separation of the right and left sides of the heart is useful in animals with high energy needs, such as:
3. Experiments proving that new life always comes from pre-existing life were done by:
4. Mitochondria divide by:
5. Consider the following statements:
(I) Pili and fimbriae play a role in bacterial motility.
(II) Pili are elongated tubular structures made of a special protein.
(III) Fimbriae are small bristle-like fibres that help bacteria attach to host tissues.
Which of the above is/are correct?
6. The largest known cell in the living world is the yolk of the:
7. If the two copies of a gene for a trait are not identical, the trait that gets expressed is called:
8. Ozone in the upper atmosphere shields the surface of the Earth from:
9. Consider the following statements about photosynthesis:
(I) Chlorophyll is essential for the process.
(II) Oxygen is a raw material for the process.
(III) Carbon dioxide is used in the process.
Which of the above is/are correct?
10. Acute chest pain due to insufficient oxygen reaching the heart muscle is called:
11. Lymph carries digested and absorbed fat from the:
12. The inner lining of the stomach is protected from the action of acid by:
13. Blocking the vas deferens in males prevents:
14. Consider the following statements:
(I) Viruses are composed of genetic material with a protein coat.
(II) Viroids lack a protein coat around their genetic material.
(III) Prions are misfolded proteins that lack genetic material.
Which of the above is/are correct?
15. Consider the following statements:
(I) Plant cells have a large vacuole.
(II) The vacuole helps in maintaining the shape of a plant cell.
(III) Animal cells usually have large vacuoles.
Which of the above is/are correct?
16. The anther contains:
17. Krishi Vigyan Kendras, which train farmers in modern grafting, function under the:
18. Maharaj Kishan Bhan played a key role in developing the vaccine against:
19. Consider the following pairs:
(I) Earth Summit – 1992
(II) Kyoto Protocol – 2005
(III) Paris Agreement – 2015
Which of the pairs given above is/are correctly matched?
20. The disc-shaped structures present on the sides of the centromere are called: