The products of tissue respiration are_________

• A. glucose, oxygen, and water
• B. oxygen, water, and energy
• C. glucose, carbon dioxide, and energy
• D. water, carbon dioxide, and energy

In the tapeworm the suckers on the scolex are used for

• A. sucking the blood of the host
• B. holding fast to the host
• C. reproduction
• D. locomotion

Which of the following methods of reproduction is common to Paramecium and Amoeba?

• A. Conjugation
• B. Sexual reproduction
• C. Binary fission
• D. Budding

Which of the following insects lays its eggs in horny, purse-like cases?

• A. Mosquito
• B. Butterfly
• C. Termite
• D. Cockroach

The most important hormone that induces the ripening of fruit is

• A. Ethylene
• B. Indole acetic acid
• C. Gibberallin
• D. Cytokinin

Which of the following diseases can be inherited?

• A. Pneumonia
• B. Whooping cough
• C. Sickle cell anemia
• D. Malaria

The annulus of fern sporangium helps in

• A. spore dispersal
• B. conduction of mineral salt
• C. trapping of light energy
• D. water retention

A marine protozoan is likely to have no contractile vacuole mainly because the cytoplasm is

• A. isotonic to sea water
• B. hypotonic to sea water
• C. hypertonic to sea water
• D. impervious to sea water

Study the information below. Use it to answer question below

In an experiment to study the rate of water loss in plants, leaves of a potted plant were treated as follows:

I. Upper surface covered with Vaseline

ll. Lower surface covered with Vaseline

III. Both surfaces covered with Vaseline

IV. None of the leaf surfaces covered Indicate in a descending order, the rate of water loss from the leaves

• A. I, II, III and IV
• B. II, I, III and IV
• C. III, II, I and IV
• D. IV, I, II and III

(a) (i) Name the two stages involved in photosynthesis.

(ii) Write an equation to represent the first stage of photosynthesis.

(b) (i) List six modes of nutrition in organisms.

(ii) Name one feature that makes feeding possible in the following organisms: I. Paramecium; II Spirogyra; Ill Rhizopus; IV Tape worm.

(c) Define the term balanced diet.

(d) (i) State three characteristics of enzymes.

(ii) in a tabular form, indicate the source, substrate acted upon and the product of the following enzymes: ptyalin and pepsin.