43
Human beings require vitamins in their diet because vitamins
- A. contain carbohydrates and fats
- B. prevent kwashiorkor
- C. stimulate the alimentary canal
- D. digest proteins in the body
- E. influence many important chemical processes in the body
44
Milk can be pasteurized by
- A. the addition of common salt
- B. boiling for one hour
- C. heating to 75oc for 20 minutes
- D. the addition of vinegar
- E. heating to 100oc for 12 hours
45
Some of the features of an animal are scales, teeth, nares and backbone. The animal is likely to be a
- A. Toad
- B. Bird
- C. Lizard
- D. Rat
- E. Bat
46
Which one of the following animals is NEVER a secondary host of tapeworms?
- A. cow
- B. Fish
- C. Pig
- D. Man
- E. Dog
47
The vacuole of a plant cell is
- A. a large empty space
- B. smaller than that of animal cell
- C. filled with air
- D. an ordinary vacuum
- E. surrounded by a membrane
48
Which of the following spreads malaria in Nigeria?
- A. Anopheles mosquito
- B. Culex mosquito
- C. Aedes mosquito
- D. Tsetse fly
- E. House fly
49
One of the following statement is NOT true of spirogyra
- A. it is a simple multicellular plant
- B. during conjugation, its gametes, which are structurally and physiologically similar, fuses to form a zygote
- C. it possesses spiral chloroplast which enables the plant to photosynthesize
- D. its cells are protected externally by layer of mucilage
- E. there are pyrenoids along the chloroplast
50
In Mucor or Rhizopus carbohydrate is absorb in the form of
- A. starch
- B. sucrose
- C. glucose
- D. glycogen
- E. arabinose