Q. 1 Prove with the help of experiment and labelled diagram that oxygen gas is evolved during photosynthesis.

2. When a haemophilic man marry a general woman then what will their family heriditary. Explain with ray diagram.

3. Prove with the help of experiment and labelled diagram that carbon dioxide is essential for photosynthesis.

4. What will be heriditary of the family where a color blind man got married with a carrier woman. Explain with ray diagram.

5. What in college theory of ageing? Write any four characteristic of ageing?

6. Where the thyorid and adrenal glands are found in human body and what is their secretion. Write its name and the effects of their hypersecretion

7. Where the following endocrine glands are found? Write name of harm one secreted by these glands, and the effects of hyposecretion of these glands.

(i) Thyroid gland

(ii) Adrenal gland

8. Which form of nucleic acid is called genetic material? Explain the structure of this material

9. What is called genetic code? Write its any four characteristics.

10. Draw labelled diagram of L.S. of Human Kidney.

11. Draw labelled diagram of L.S. of Human Heart.

12. Write the common and scientific name of animals, which give Honey, silk, pearl and lac

13. Wirte the common and botanical name of any four vegetable yielding plants.

14. Write any four importance of crossing over

15. Write any four main functions of Skeletal system.

16. Write any four main functions of skin (integumentary system)

17. How sex determination takes place in man

18. Write any three main function of Gibberline

19. What are the causes of following deformaties in human body;

(a) Cretinism

(b) Goitre

(c) Myxiedema.

20. Explain the law of independent assortment with the help of checker board

21. Which harmones perform the following questions –

(a) Softness of pelvic nerve at the time of delivery

(b) Secretion of milk from mammary gland just after delivery.

(c) To induce the male and female gamete.

22. Write any three functions of cytokinin.

23. Labelled the following with the proportion of D.N.A. as per Crick & Watson –

(i) Sugar molecule

(ii) Phosphoric Acid

(iii) Nitrogenous base

24. Write any three main functions of Auxine?

25. Valves are found in veins but they are absent in arteries, why?

26. Write any two differences between S.A. node and A.V. nod

27. By which harmone, following functions are performed;

(a) Contraction of muscles of uterus at the time of delivery

(b) Induction of thyroid for thyroxine secretion.

(c) Loss of water from urine

28. Explain the limiting factors principle of blackman

29. Why there is more blood pressure in closed circulatory system?

30. Write any two differences between ROD and CONS

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