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1.
Which of the following statement is NOT true of enzymes? They
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A.
Are proteins
B.
Are sensitive in their action
C.
Can withstand high temperature
D.
Are specific in their action

2.
Exoskeleton is NOT found in the
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A.
Maggot
B.
Mosquito larva
C.
Earth worm
D.
Caterpillar

3.
Blood clotting is initiated by
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A.
Leucocytes
B.
Platelets
C.
Haemoglobin
D.
Erythrocytes

4.
Pepsin is a digestive enzymes which breaks
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A.
Cellulose into glucose molecules
B.
Carbohydrates into simple sugars
C.
Protein into peptones
D.
Sucrose into glucose and fructose

5.
Anaerobic respiration in yeast produces
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A.
Carbondioxide and ethanol
B.
Carbondioxide and water
C.
Carbondioxide and oxygen
D.
Carbondioxide and glucose

6.
A man with normal haemoglobin (AA) marries a woman who has sickle-cell haemoglobin (SS). They have a child who has a sickle-cell trait. Which of the following genotypes could be associated with the child's hemoglobin?
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A.
AA
B.
AO
C.
AS
D.
SS

7.
The removal of a man's pancreas by surgical operation can affect only the digestion of
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A.
Starch
B.
Starch, protein and fats
C.
Oils and fats
D.
Proteins

8.
If an animal is very active and has good muscular control, it is likely to have well-developed
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A.
Olfactory lobes
B.
Cerebral hemisphere
C.
Optic lobes
D.
Cerebellum

9.
Normally the flow of blood is NEVER from
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A.
artery to arterioles
B.
arterioles to capillaries
C.
arterioles to the artery
D.
venules to the vein

10.
Asexual reproduction does NOT occur in
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A.
Mucor, Spirogyra and Paramecium
B.
Mucor, Rhizophus and Penicillium
C.
Amoeba, Spyrogyra and Mucor
D.
Rhizophus, Ascaris and Amoeba

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