Jamhuri High School Form 2 Biology Cat 1 September 2011 Question Paper

Jamhuri High School Form 2 Biology Cat 1 September 2011

Course:Secondary Level

Exam Year:2011

JAMHURI HIGH SCHOOL
FORM 2 BIOLOGY CAT 1 MAY 2011.
Answer all questions in the spaces provided.
1(a)Make a well labeled diagram of a gill.(4mks)
(b)Give one function of each part you have labeled in 1(a) above.(3mks)
2.The blood of a cockroach does not contain haemoglobin or any other oxygen carrying pigment.Explain.(2mks)
3.Explain the following;
(i)Exhaled air has carbon(iv)oxide than inhaled air.(1mk)
(ii)Tidal volume increases when somebody is physically active.(1mk)
4.How are the alveoli adapted to their function?(4mks)
5.(a)Name the gas that diffuses from the mesophyll cells on a bright sunny day.(1mk)
(b)Explain your answer in 5(a) above.(1mk)
6.(a)Name the blood vessels that link arterioles and venules.(1mk)
(b)Explain how the blood vessel in 6(a) above are adapted to their functions.(4mks)
7. State one way immunity can be artificially induced.(1mk)
8.The rate of traspiration is higher on a windy day than on a calm day.Explain(2mks)
9.Name the enzyme found in salivd and state its function.(2mks)
10(a)Name two features that increase the surface area of the ileum(2mks)
(b)Name the vitamin needed in the body to prevent scurvy.(1mk)

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Jamhuri High School Form 2 Biology Cat 1 September 2011 Question Paper

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