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KCSE BIOLOGY PAPER 3 2009

Image From EcoleBooks.comThe photographs labeled K L, M, N and P below are of bones obtained from a mammal for each of the bones K, L and M two views are shown

Identify the bones and name the part of the mammalian body from which each was obtained

 

Body Identity of the bone where found

K …………………… …………………………………..

 

L …………………… …………………………………..

 

M …………………… …………………………………..

 

N …………………… …………………………………..

 

P …………………… …………………………………..

 

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Name the parts labeled 1,2,3,4 and 5 ( 5 mks)

  1. ………………………………………………………………………………….
  2. ………………………………………………………………………………….
  3. ………………………………………………………………………………….
  4. ………………………………………………………………………………….
  5. ………………………………………………………………………………….

 

Name the bones that form a joint with bone K at its anterior and posterior and in each case name the type of joint they form ( 4 mks)

(i)  Bone(s)  ……………………………………………………………………

 

(ii)  Type of joint  ……………………………………………………………………

 

Posterior end

(i)  Bone (s)  …………………………………………………………………..

 

(ii)  Type of joint  …………………………………………………………………..

 

State the function of the structure labeled 6 in bone P ( 1 mks)

 

2.  You are provided with substances labeled P,Q,X,Y and Z. P and Q are food substances, while X is dilute hydrochloric acid, Y is dilute sodium hydrogen carbonate and Z is Benedict’s solution. Carry outs tests to determine the food substance (s) in P and Q. ( 12 mks)

Substance

Food substances being tested for

Procedure

Observations

Conclusions

P

 

 

 

 

 

 

 

 

    

Q

 

 

 

 

 

 

 

 

    

 

were grown under different conditions. Examine them

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Using observable features only state three differences between the seedling in photographs W and X ( 3 mks)

………………………………………………………………………………….

………………………………………………………………………………….

………………………………………………………………………………….

 

Seedlings in photographs Y and Z were planted at the same time but under different conditions. Explain how the response exhibited by the seedlings in photographs Z occurred. ( 2 mks)

 

 

 

 

 


 




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