UNIVERSITY OF LAGOS(UNILAG) 2006 BIOLOGY PAST QUESTION

UNIVERSITY OF LAGOS
2006 POST-UTME
BIOLOGY

1. Siliqua can be described as a
A. long narrow many seed developing from a superior bicarpellary ovary
B. dry monocarpellary, superior, one-chambered fruit
C. dry monocarpellary, multilocular fruits developing from a superior ovary
D. Many-seeded, unilocular fruit developing from a superior ovary

2. A rhizome is an underground
A. root
B. shoot
C. food
D. stem

3. A tapeworm has no alimentary canal because
A. it does not feed
B. it sucks blood
C. its body absorbs digested food
D. only liquid food is takenin

4. T he best way of protecting natural resources is by
A. creating game and forest reserves
B. enforcing conserative laws
C. embarking on tree planting
D. prohibiting lumbering in forest reserves

5. Crypsela is
A. dry, dehiscent, monocarpellary, developed from superior ovary
B. dry, dehiscent, multilocular, one chambered fruit
C. dry, indehiscent, monocarpellary, fromm superior ovary
D. dry, indehiscent, bicarpellary developed from inferior ovary, one seeded fruit

6. W hich of the following is not a characteristics of enzymes ?
A. they are protein which are activated by co-enzymes
B. they are specific and can act only on specific substrates
C. they are organic catalysts
D. their reactions are irreversible

7. De-oxygeneated blood from the head region first enters the heart through the
A. right auricle
B. right ventricle
C. left auricle
D. left ventricle

8. W hich of these is the function of pnematophores in white mangrove plants?
A. anchorage
B. breathing
C. storage
D. excretion

9. O ne of the basic characteristics feature of viruses is that they grow
A. as colonies
B. as jelly-like materials
C. inside living cells
D. in culture media

10. S teady spread of the unlpleasant odour from dead rat is a physical process called
A. cyclosis
B. diffusion
C. osmosis
D. plasmolysis

11. T he organelle in amoeba which performs a similar function with that of the kidney in vertebrate: the
A. nucleus
B. contractile vacoule
C. mitochondrion
D. pseudopodium

12. W hat is osmosis?
A. a movement of solvent molecule from high concentration of solute to low concentration of solute.
B. process of selective transmission of solvent in preference to solute through semi-permeable membrane
C. movement of solvent from high concentration of solventto low concentration of solvent through semi-permeable membrane
D. movement of solvent from low concentration of solvent to high concentration of solvent through semi-permeable membrane

13. B lood platelets are important because they
A. produce antitoxins
B. antibodies
C. digest harmful bacteria
D. release thrombin for blood clotting

14. G ymnosperms are commonly called
A. conifers
B. flowerless plant
C. seedless plants
D. cork bearing plant

15. In positive phototropism auxin
A. is produced more in the shaded side than the illuminated side of the shoot
B. as an hormone circulate on all the sides of the plant
C. is produced less in the shaded side than illuminated side of the shoot
D. is produced on the plant near the root so that it can grow longer

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Comments

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