Paper : CBSE Class 12th Biology Exam Paper, 2004 (Compartment Outside Delhi: Set - 2)

SECTION - A

Q. 5. What brings about pollination in plants like silk-cotton tree and bottle- brush? 1

SECTION - B

Q. 8. Differentiate between rheumatoid arthritis and osteoarthritis. 2

Q. 10. At a rural health centre a nursing mother is given an immunization schedule for DPT-Hib to be given to the baby. What are the diseases the child will be protected against? 2

Or

Which kind of immunity, active or passive, is provided by vaccination? Name the disease against which protection is provided by BCG vaccine.

Q. 11. Explain the hormonal basis of:
(i) diabetes mellitus and
(ii) diabetes insipidui. 2

Q. 13. List and describe any two purposes for which the genetically altered plants are used. 2

SECTION - C

Q. 18. Name the causative agent, list two symptoms and describe the mode of transmission of the disease anthrax. 3

Q. 19. What term do you use for science of ageing? Mention two salient features of immunological theory of ageing. 3

Q. 25. Write the full form of ECG. What do the different waves of a normal ECG of a human indicate? 3

SECTION - D

Q. 26. Answer the following with reference to mammalian heart: 5
(i) What are SA and AV nodes? What are their functions
(ii) Name the two heart sounds. How are they produced?