Biology Set 2 FAQs

1. If the Earth were much smaller but of the same average density, its atmosphere would:

2. On average, the percentage of the food eaten that is turned into body mass and made available to the next level of consumers is:

3. The world's first non-steroidal and non-hormonal oral contraceptive pill was developed at the:

4. In plants, carbohydrates not used immediately are stored in the form of:

5. Villages with more mangroves experienced less destruction during the super cyclone that hit Orissa in:

6. The inhalation of tobacco-polluted air by non-smokers is called:

7. Body-building foods are rich in:

8. The development of the embryo in a seed into a seedling under appropriate conditions is called:

9. Consider the following statements about vaccines: (I) They are preventive, not curative. (II) They can be made from weakened or dead pathogens. (III) They treat a disease once a person is already sick. Which of the above is/are correct?

10. The place where plants and animals live is called their:

11. Growth in plants requires actively dividing cells that together form:

12. The backbone is made up of a series of small bones called:

13. Consider the following statements about mitochondria and chloroplasts: (I) Both are double membrane bound. (II) Both contain their own DNA and ribosomes. (III) Both are single membrane bound. Which of the above is/are correct?

14. ASHA, the community health workers working under the National Health Mission, stands for:

15. The fertilised egg in a flowering plant is called a:

16. Which of the following is NOT a secondary sexual characteristic?

17. Consider the following pairs: (I) Fish – Gills (II) Earthworm – Moist skin (III) Tadpole – Lungs Which of the pairs given above is/are correctly matched?

18. Consider the following pairs: (I) Mango – Tree (II) Rose – Shrub (III) Tomato – Shrub Which of the pairs given above is/are correctly matched?

19. The bones of the skull are connected by:

20. Bilateral symmetry, with distinct head-tail and front-back regions, first appears in the phylum:

21. The longest portion of a bacterial flagellum, extending from the cell surface to the outside, is the:

22. Assertion (A): Plant cells placed in a concentrated sugar solution lose water but do not shrink in overall size. Reason (R): The rigid cell wall maintains the shape of the plant cell.

23. Consider the following statements: (I) Nutritional requirements may vary with age. (II) Nutritional requirements may vary with physical activity. (III) Nutritional requirements are the same for everyone. Which of the above is/are correct?

24. Water covers approximately what percentage of the Earth's surface?

25. B and T lymphocytes are responsible for:

26. The percentage of oxygen in exhaled air is nearly:

27. The thick walls of sclerenchyma cells are due to the deposition of:

28. In Amoeba, the splitting of the two cells during division can take place in:

29. The membranous extensions into the cytoplasm of cyanobacteria that contain pigments are called:

30. In which of the following are spores formed on a swollen vesicle on a long strip of fungal hyphae?