Year :
1993
Title :
Biology
Exam :
JAMB Exam
Paper 1 | Objectives
21 - 30 of 50 Questions
| # | Question | Ans |
|---|---|---|
| 21. |
Which of the following is TRUE of the process of conjugation in paramecium? A. Micronucleus disintegrates B. Each ex-conjugant divides only once C. Macronucleus undergoes division D. Each micronucleus divides twice |
D |
| 22. |
The bright colours of the comb and feathers in the peacock are for A. sex differenciation B. beauty C. courtship D. defence |
C |
| 23. |
The main function of the petal of a flower is to A. attract pollination agents B. protect the flower while still in bud C. serve as landing stage for insects D. protect the inner paisr from desiccation |
A |
| 24. |
In the mammal, the autonomic nervous system consists of A. sympathetic and parasympathetic system B. brain and spinal nerves C. brain and cranial nerves D. spinal cord and spinal nerves |
A |
| 25. |
 In H, the cotyledons are carried above the soil because A. the epicotyl grows faster than the hypocotyl B. the hypocotyl grows faster than the epicotyl C. both grow at the same rate D. the epicotyl outgrow the radicle |
B |
| 26. |
 The function of the structure labelled G is to A. carry out initial photosynthesis for the seedlings B. protect the young leaves from mechanical damage C. protect the young leaves from sun light D. protect the young leaves from insects pest |
A |
| 27. |
When it is cold, the blood vessels of the skin A. dilates to increase the amount of blood flowing B. constrict to reduced the amount of blood flowing to the skin C. dilate to reduce the amount of blood flowing to the skin D. constrict to increase the amount of blood flowing to the skin |
B |
| 28. |
Which path does sound entering the human ear follow? A. Oval window → ossicles → ear drum B. Ear drum → oval window → ossicles C. Ear drum → ossicles → oval window D. Ossicles → ear drum → oval window |
C |
| 29. |
What would happen to a man whose pancreas has been surgically removed? A. The level of blood sugar would increase B. The glycogen content of the liver would increase C. His blood pressure would decrease D. His weight would increase appreciably |
A |
| 30. |
Carnivorous plants are usually found in areas A. which are deficient of nitrate B. which are deficient of oxygen C. with low pH D. where insects are abundant |
A |
| 21. |
Which of the following is TRUE of the process of conjugation in paramecium? A. Micronucleus disintegrates B. Each ex-conjugant divides only once C. Macronucleus undergoes division D. Each micronucleus divides twice |
D |
| 22. |
The bright colours of the comb and feathers in the peacock are for A. sex differenciation B. beauty C. courtship D. defence |
C |
| 23. |
The main function of the petal of a flower is to A. attract pollination agents B. protect the flower while still in bud C. serve as landing stage for insects D. protect the inner paisr from desiccation |
A |
| 24. |
In the mammal, the autonomic nervous system consists of A. sympathetic and parasympathetic system B. brain and spinal nerves C. brain and cranial nerves D. spinal cord and spinal nerves |
A |
| 25. |
In H, the cotyledons are carried above the soil because A. the epicotyl grows faster than the hypocotyl B. the hypocotyl grows faster than the epicotyl C. both grow at the same rate D. the epicotyl outgrow the radicle |
B |
| 26. |
The function of the structure labelled G is to A. carry out initial photosynthesis for the seedlings B. protect the young leaves from mechanical damage C. protect the young leaves from sun light D. protect the young leaves from insects pest |
A |
| 27. |
When it is cold, the blood vessels of the skin A. dilates to increase the amount of blood flowing B. constrict to reduced the amount of blood flowing to the skin C. dilate to reduce the amount of blood flowing to the skin D. constrict to increase the amount of blood flowing to the skin |
B |
| 28. |
Which path does sound entering the human ear follow? A. Oval window → ossicles → ear drum B. Ear drum → oval window → ossicles C. Ear drum → ossicles → oval window D. Ossicles → ear drum → oval window |
C |
| 29. |
What would happen to a man whose pancreas has been surgically removed? A. The level of blood sugar would increase B. The glycogen content of the liver would increase C. His blood pressure would decrease D. His weight would increase appreciably |
A |
| 30. |
Carnivorous plants are usually found in areas A. which are deficient of nitrate B. which are deficient of oxygen C. with low pH D. where insects are abundant |
A |