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F2 Biology Question Paper
F2 Biology
Course:Secondary Level
Institution: Kcse question papers
Exam Year:2011
TAKABA BOYS’ SECONDARY SCHOOL
P.O .BOX 66, TAKABA
END YEAR 2011
F2 BIOLOGY
NAME:……………………………………………………………………..ADM NO:………….….CLASS:………
Q1. State two functions of cytoplasm in a cell. (2mks)
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Q2. State the functions of each of the following parts of light microscope
a) Mirror………………………………………………………………………………………………………………... (1mk)
b) Fine adjustment knob……………………………………………………………………………………… (1mk)
Q3. The diagram below shows a process that takes place in the gullet during the swallowing of food.
a) Name the process. ……………………………………………………………………………… (1mk)
b) Name
i) The muscle labelled X………………………………………………………………...(1mk)
ii) The part labelled Y………………………………………………………………………(1mk)
Q4. Two students were observing bacteria using two identical microscopes and identical slides. Student A saw 10 bacteria while student B saw 50 bacteria.
a) Suggest a reason why they observed different numbers of bacteria. (1mk)
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b) Which of the following combinations would give a wider field of view; (1mk)
Eye piece x 10 and objective x 20 or
Eye piece x 10 and objective x 40
Q5. Explain why plants shed off their leaves during dry weather. (2mks)
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Q6. Name two parts in human body with cilia. (2mks)
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Q7. State one similarity and one difference between parasitic and predatory modes of feeding. (3mks)
Similarity Difference
Q8.a) Other than having many features in common, state other characteristics of a species. (1mk)
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b) The scientific name for a housefly is Musa Domestica. Identify two mistakes made when writing the scientific name. (2mks)
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Q9. Give a reason as to why;
a)Skeletal muscles have numerous mitochondria. (1mk)
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b) Palisade cells have numerous chloroplasts. (1mk)
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Q10. A certain member of protozoa has active contractile vacuole.
a) Suggest its likely habitat. (1mk)
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b) Give the reason four your answer. (2mks)
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Q11. Why oxygen is is required in the uptake of mineral salts ions by the roots of plants. (2mks)
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Q12. State two functions of the malpighian layer of the mammalian skin. (2mks)
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Q13.a) State two functions of bile juice in the digestion of food. (2mks)
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b) How does substrate concentration affect the rate of enzyme action?
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