(a). Name the gases involved in the photosynthesis of a plant.

(b) State one role each of the gases named in 2 (a).

(c) (i) What is a variegated leaf?
(ii)Which part of the variegated leaf would test positive when treated with iodine solution?
(iii) State two reason for the answer in 2(c) (ii).
(iv) Name one mineral element required by plants for the formation of the part that would test positive in 2(c)(ii).

(d) The table below indicates different methods by which organism obtain food. Place the following organism under the heading in the table below:  Human, Mushroom, Venus flytrap, Waterleaf plant, Tapeworm, Elephant grass, Housefly, Lichen, Spirogyra, Rhizopus. 

Mode of Nutrition

Holozoic	Parasitic	Symbiotic	Saprophytic	Autotrophic