Biology Paper 3 Question Paper
KCSE CLUSTER TESTS 26
Biology Paper 3
Below are photographs of specimens obtained from plants. Examine the photographs
a).For each of the specimens, name the mode of pollination and the features that adapt the specimen to the mode of pollination.
Specimen R
-Mode of pollination (1mrk)
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-Adaptive features (2mrks)
i)______________________________________________________________________________
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ii)_____________________________________________________________________________
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_________
Specimen S1
-Mode of pollination (1mrk)
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__________
-Adaptive features (2mrks)
i)_____________________
13 marks
The photographs labeled R, S, T and V are of bones obtained from a mammal. Examine them.
a). Identify the bones and name the part of the mammalian body from which each bone was obtained.
b).i). Name the joint formed between bones S and T at point marked X. (1mrk) ____________________________________________________________________________ ____________________________________________________________________________
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ii) Give the characteristics of the joint named in (b) (i) above. (1mrk) ____________________________________________________________________________ ____________________________________________________________________________
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c). i).Name the bone structure labeled Y. (1mrk)
____________________________________________________________________________ ____________________________________________________________________________
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ii). State one function of the bone structure named in C (i) above. (1mrk) ____________________________________________________________________________ ____________________________________________________________________________
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d).i). Using observable features give two adaptations of the bone labeled R. (2mrks)
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ii). On the bone in photograph V, draw a diagram of bone R to show the articulation between the two bones. (2mrks)
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e). Name the part labeled Z in the photograph 5 and state its function. (2mrks) PartZ__________________________________________________________________________
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Function_______________________________________________________________________
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f). Name the joint formed by bone T with adjacent bones at its distal end. (1mrk)
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_____________________________________________________________________________________
__________
15 marks
a). You are provided with a sample of food labeled P in solution form. Using the reagents provided, carry out tests on the food sample to identify the type of food substances present. (6mrks)
b). Suggest the regions of the human digestive system where the foods tested are digested. (2mrks)
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c).State enzyme involved in the digestion of the foods tested. (2mrks)
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d). Name the deficiency diseases of each of the food tested. (2mrks)
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12 marks