CBSE Guess > Papers > Question Papers > Class XII > 2005 > Biology > Compartment Delhi Set-II

BIOLOGY 2005 (Set II—Compartment Delhi)

Except for the following questions alt the remaining questions have been asked in Set I.

SECTION - A
Q. 1. State any one signification of interspecific hybridization in plants. 1

Q. 5. State one artificial condition, which may stop non-cyclic photophosphorylation and trigger.cyclic photóphosphorylation. 1

SECTION - B
Q. 7. What is inbreeding? Name the extreme form of inbreeding. What happens to the recessive alleles in this process? 2

Q. 8. Name the plants hormone that inhibits plant growth and metabolism. What is the rle of this hormone in seed development.
Or
Name and describe the type of vegetative reproduction usually employed in propagating orange, litchi, etc.

Q. 13. Bile juice contains no digestive enzymes, yet it is important fro digestion. Explain. 2

Q. 15. What is oxidative decarboxylation of pyruvic acid? When does it occur? 2

SECTION - C
Q. 16. Describe how the blood transports CO2 from tissues to the lungs. 3

Q. 18. Explain how CO2 concentration in increased in the bundle sheath cells of C4 plants for photosynthesis. 3
Q. 20. Draw a diagram of the L.S. of a mature angiospermic (anatropous) ovule. Label any six parts. 3
Or
Draw a diagram of the transverse section of an angiospermic anther. Label any six parts. 1

SECFION - D
Q. 26. Describe the detailed structure of skeletal muscle. Name its two types and mention any two differences between them.
Or
Explain the mechanism of muscle contraction by sliding filament theory. 5

Biology 2005 Question Papers Class XII
Delhi		Outside Delhi		Compartment
	Set I		Set I		Set I
	Set II		Set II		Set II
	Set III		Set III		Set III

CBSE 2005 Question Papers Class XII
	English		Sociology
	Functional English		Psychology
	Mathematics		Philosopy
	Physics		Computer Science
	Chemistry		Entrepreneurship
	Biology		Informatics Practices
	Geography		Multimedia & Web Technology
	Economics		Biotechnology
	Business Studies		Physical Education
	Accountancy		Fine Arts
	Political Science		History
	Agriculture