1980 JAMB UTME Biology Past Questions

1980

The organ through which food and oxygen are supplied to the human embryo and which also prevents harmful materials from reaching the embryo is the

1980

A potometer is used to determine the rate at which a shoot

1980

Which one of the following parts of the mammalian body is most closely associated with the production of urine?

1980

For pollination and fruit formation, the essential part(s) of the flower should be the

1980

The conversion of excess amino acids into urea occurs in the

1980

Which of the following food substances is digested in the stomach?

1980

If the bark and phloem tissue of a woody shoot are peeled off by ringing, the whole plant will die eventually die because?

1980

During excretion of urea there is also a corresponding re-absorption of water into the blood. This re-absorption takes place in the

1980

In anaerobic respiration, glucose is converted to one of the following

1980

The part of the cell solely responsible for respiration is the

1980

A green plant growing in a compost pit is feeding

1980

Biconcave lenses are used in the correction of an eye defect called?

1980

The following are connected with the movement of a reflex action (1) Central nervous (2) Muscles (3) Skin (4) Sensory nerve (5) Motor nerve. Which of the following sequences indicates a correct path?

1980

Which of the following hormones is produced during fright or when agitated?

1980

which part of the human brain is concerned with reflexes controlling the rate of heart beat and breathing?

1980

The filament of spirogyra were put into equal volumes of sugar solutions X and Y. After 5 minutes, filaments from solution X had their cells contents rounded up while those from Y were unaffected. The experiment shows th…

1980

if three 30 cm lengths of glass tubes are tightly packed with clay, sand and loamy soils respectively and then stood in a beaker of water for one week, the level of water will be

1980

The tips of some rice seedlings were cut off while some were left intact. Both were covered with a container which had not only one small hole to allow light through. After twenty-four hours it was observed that

1980

An organism X lives entirely on the waste products in another organism Y. In this association X is a

1980

A student trying to find out the order in which organisms appear on a cleared plot is studying one of the following

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