You are provided with a suspension labeled M which contain food substances. You are also provided
with Iodine solution, Benedicts solution, dilute hydrochloric acids, dilute sodium hydrogen
carbonate, copper sulphate and dilute sodium hydroxide. Carry out tests to determine the food
substance .

Photographs J and K are taken from certain organs of plants. Study them carefully and answer
questions questions below.

(a) (i) With reference to photographs J, what is the name of the smelling marked 3 (1mk)
(ii) Name the organisms that would be found in these smellings (1mk)
(iii) Explain the relationship that exists between the named organisms and the plant (3mks)
(b) (i) With reference to photograph K, state the habitats of leaves labeled: (3mks)
M…………………………………………………………………………………………
N……………………………………………………………………………………….... P…………………………………………………………………………………………

(ii) Using observable features, state three ways in which leaf M is adapted to survive in its habitat
(3mks) ………………………………………………………………………………………………………. ………………………………………………………………………………………………………. ……………………………………………………………………………………………………….

The photograph Z shows some of the main structure found inside the body of a mammal as seen
from the side . Study it carefully.
(a) (i) Label the parts marked P – V (7mrks)
P .......................................................................................................................

Q ...................................................................................................................... R.......................................................................................................................

S ......................................................................................................................

T .....................................................................................................................

U ......................................................................................................................

V .....................................................................................................................

(ii) On the photograph, indicate where absorption of water by the body takes place. (1mrk)
(b) (i) State the function of part marked T (2mrks)
..................................................................................................................................................
...................................................................................................................................................

(ii) State two ways in which the part marked T in b (i) above is adapted to perform its function
(2mks) ……………………………………………………………………………………………………........ ………………………………………………………………………………………………………....

(c) State two functions of part marked Q (2mks) ………………………………………………………………………………………………………. ……………………………………………………………………………………………………….

(d) State three homeostatic function of structure U (3mks) ………………………………………………………………………………………………………. ………………………………………………………………………………………………………. ……………………………………………………………………………………………………….