JAMB UTME - Biology - 1978
Ibeere 7 Ìròyìn
THE figure above shows diagram for the correction of shortsightedness. If the unbroken lines represents light rays from the object and the broken lines the refracted rays through the lens, which of these is correct
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Ibeere 9 Ìròyìn
The figure above represents an experiment with two types of soil. The experiment demonstrates
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Ibeere 11 Ìròyìn
Which of these is not associated with the movement of the toad, reptile or bird?
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Ibeere 13 Ìròyìn
During the movement of the fish from point A to target B, one of these parts is not involved
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Ibeere 17 Ìròyìn
A farmer X working in a swamp did not eat any food nor drink any water. Which of this diseases can he not contact
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Ibeere 18 Ìròyìn
A trawler on a fishing trip caught a type of animal with hairs on its body. This animal could have been
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Ibeere 19 Ìròyìn
The study of organism and the environment of an abandoned farmland is the ecology of?
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Ibeere 20 Ìròyìn
The structure responsible for trapping the sun's energy during photosynthesis is
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Ibeere 25 Ìròyìn
Which one of the following statements about the mammalian kidney is false?
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Ibeere 26 Ìròyìn
which of these elements in plants is required in small quantities only
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Ibeere 29 Ìròyìn
Given the equation:
6CO2 + 6H2O → C6H12O6 + 6O2 {Under sunlight & Chlorophyll)
The process represented by the above equation is
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Ibeere 32 Ìròyìn
A potometer with a leafy shoot weighed 18.9g initially and weighed 17.9g after one hour. From this it follow that
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Ibeere 35 Ìròyìn
A carbohydrate molecule in the blood in the right ventricles of the heart is pumped into the cell of the toe of a man. Which of these structure is it unlikely to pass through en-route
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Ibeere 37 Ìròyìn
The following events take place during conjugation in spirogyra 1. The protoplasm of each of the conjugating cell separate from the cell wall to form a Gamete; the gamete of one filament passes through the conjugation tube to meet the gamete of the other filament 2. The zygote soon become surrounded by thick brown wall to become zygospore which burst after a short rest and germinate to produce a new filament 3. The nuclei of the gametes fuse to form a zygote 4. The protuberance meet and where they touch the cell-wall disappear so that a conjugation tube joining the two cell is formed 5. protuberance appear on the wall of the cell of two filament of spirogyra lying side by side opposite one another. Now what is the correct sequence in which the above sequence occur?
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The correct sequence in which the above events occur during conjugation in Spirogyra is 5, 4, 3, 1, 2. First, protuberances appear on the cell walls of two adjacent Spirogyra filaments lying opposite to each other. These protuberances grow towards each other and where they touch, the cell wall disappears to form a conjugation tube. Next, the protoplasm of each of the conjugating cells separate from the cell wall to form gametes. One gamete passes through the conjugation tube to meet the gamete of the other filament. The nuclei of the gametes then fuse to form a zygote. The zygote is soon surrounded by a thick brown wall to become a zygospore. The zygospore undergoes a short period of rest before it bursts and germinates to produce a new Spirogyra filament. Therefore, the correct sequence is 5, 4, 3, 1, 2.
Ibeere 39 Ìròyìn
Which of these products obtained from analyzing sweat from skin is not an excretory product?
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Ibeere 41 Ìròyìn
A plant which grows on another plant without apparent harm to the host plant is called
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Ibeere 42 Ìròyìn
a potometer was used to compare the rate of loss of the same volume of water from a plant under different environmental conditions as under a fan, at the sea shore, under the sun, in the airy laboratory and in cupboard. What time was likely to have been obtained in a cupboard?
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Ibeere 43 Ìròyìn
A spirogyra cell placed was placed in solution X after 1 minute the cell has been plasmolysed, solution X was
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Ibeere 44 Ìròyìn
In a breeding program a cross was made between two true breeding cow-pea types: one with round seeds and the other with wrinkled seed. If roundness is dominant why wrinkleness is recessive, in the first filial generation all the seeds produced will be
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Ibeere 47 Ìròyìn
The feature that distinguish the toad or frog from the fish is the absence of
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Ibeere 49 Ìròyìn
The hormone which tones up the muscles of a person in time of danger is from the
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