CBSE Class 11 Biology Sample Paper Set 7

SECTION – A

Q.1 What does ‘S’ refer in a 70S and 80S ribosome?

Q.2 Write name of any one amino acid, sugar, nucleotide and fatty acid.

Q.3 Name the stain commonly used to colour chromosomes.

Q.4 Give two difference between prop roots and stilt roots.

Q.5 Give the floral formula of family solanaceae.

Q.6 What is the function of clitellum?

Q.7 Which was the first animal tissue formed during evolution?

Q.8 Name the structure in earthworm which helps in excretion.

SECTION – B

Q.9 a) Which part of the onion and ginger are edible?

b) Give the difference between reticulate and parallel venation.

Q.10 a) Which part of the plant would show the following

i) polyarch xylem ii) well developed pith

b) What are the cells that make the leaves curl in plants during water stress?

Q.11 Distinguish between the following –

a) pulmonary and cutaneous respiration

b) anal style and anal cerci

Q.12 Draw a well labelled diagram of digestive system of cockroach.

Q.13 Why neurons are called excitable cells?

Q.14 Which organelles are semiautonomous? Why they are so called?

Q.15 Differentiate between glycosidic and peptide bond. Where are they found?

Q.16 Explain competitive inhibition with example.

Q.17 Differentiate between Ligase and Lyase enzyme.

Q.18 Give the function of the followings –

a) ribosome b) centriole c) nuclear pore d) oxysome

OR

Draw a labelled diagram of Mitochondria.

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