KCSE BIOLOGY 2008 PAPER 3 QUESTIONS PRACTICAL

KCSE BIOLOGY 2008 PAPER 3 QUESTIONS

PRACTICAL

Below is a photograph of a dissected mammal. Examine the photograph

(a)  Name the parts labeled A, B, C D and G  ( 5 mks)

(b)  State the function of the structures labeled E and F ( 1 mk)

(c)  In the photograph label the structure where vitamin K is produced  ( 1 mk)

(d)  (i)  Name the sex of the mammal in the photograph ( 1 mk)

 (ii)  Give a reason for your answer in (d) (i) above ( 1 mk)

(e)  (i)  The actual length of the dissecting scissors in the photographs is 15 cm

Calculate the magnification of the photograph ( 2 mks)

(ii)  Calculate the actual length of the mammal from the tip of the nose to

point X on the tail ( 2 mks)

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

3.  Below are photographs of specimens obtained from plants. Examine the

photographs

1. (i)  Label any two parts on specimen L ( 2 mks)

(ii)  State the type of placentaion in specimen L ( 1 mk)

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