Kenya Certificate of Secondary Education (KCSE 2008) Biology Paper 3

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  1.  Below is a photograph of a dissected mammal. Examine the photograph.
    digestivee system kcse 2008
    1.  Name the parts labeled A, B, C, D and G. (5 marks)
      A ………………………………………………… 
      B ………………………………………………….
      C ………………………………………………….
      D ………………………………………………….
      G …………………………………………………
    2. State the functions of the structures labeled E and F
      E ………………………………………………. (1 mark)
      F ……………………………………………….. (1 mark)
    3. In the photograph label the structure where vitamin K is produced. (1 mark)

      1.  Name the sex of the animal in the photograph. (1 mark)
      2. Give a reason for your answer in (d) (i) above. (1 mark)

      1.  The actual length of the dissecting scissors in the photograph is 15 cm. Calculate the magnification of the photograph. (2 marks)
      2. Calculate the actual length of the mammal from the tip of the nose to point X on the tail. (2 marks)

  2. You are provided with the substances labeled S, T, U, X and Y. S, T and U are food substances, while X is 10% sodium hydroxide solution and Y is 1% copper sulphate solution. Carry out tests to determine the food substances(s) in S, T and U. (9 marks)

       food test kcse 2008
  3. Below are photographs of specimens obtained from plants. Examine the photographs.
    fruits and seed dispersal kcse 3008
    fruit and seed dispersal kcse 2008

    1.  In the table below name the mode of dispersal and the features that adapt the specimen(s) to that mode of dispersal. (12 marks) 
       seed dispersal kcse2008

      1. label any two arts on specimen L. (2 marks)
      2. State the type of placentation in specimen L. (1 mark)

    2. Name the structure labeled W on specimen P. (1 mark)

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