Year :
1991
Title :
Biology
Exam :
JAMB Exam
Paper 1 | Objectives
21 - 30 of 50 Questions
| # | Question | Ans |
|---|---|---|
| 21. |
 After 30 minutes, the level of sugar solution in the above figure will? A. rise in x only B. rise in Y only C. be the same in X and Y D. fall in Y Detailed SolutionOsmosis: A process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution(X) into a more concentrated one(Y). |
|
| 22. |
 The process by which water moves from X to Y through the semi-permeable membrane is called A. diffusion B. osmosis C. active diffusion D. osmoregulation |
B |
| 23. |
Fibrinogen and prothrombin play important roles in the A. deamination of proteins B. clotting of blood C. detoxication of substance D. storage of vitamins |
B |
| 24. |
Deoxygenation blood flows into the right and left lungs through the A. pulmonary vein B. vena cava C. pulmonary artery D. subclavian vein |
C |
| 25. |
Which of the following is a plant excretory product? A. Oil B. Cytokinin C. Resin D. Amino acids |
C |
| 26. |
The movement of the whole organism to an external stimulus is termed A. tropism B. a taxis C. a nastic movement D. a phototropic movement |
B |
| 27. |
Which of the following vertebrae lacks a centrum? A. Atlas B. Axis C. Thoracic D. Lumbar |
A |
| 28. |
The function of the epididymis in mammals is the A. expulsion of urine B. storage of sperms C. circulation of blood D. activation of sperms |
B |
| 29. |
A collection of achenes formed from several carpels of a flower is A. a multiple fruit B. an aggregate fruit C. a shizocarp D. a simple fruit |
C |
| 30. |
Vegetation propagation is described as asexual reproduction because A. reproductive organs are not involved B. new individuals are not formed C. many new plants are produced D. there is no exchange of genetic materials |
D |
| 21. |
After 30 minutes, the level of sugar solution in the above figure will? A. rise in x only B. rise in Y only C. be the same in X and Y D. fall in Y Detailed SolutionOsmosis: A process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution(X) into a more concentrated one(Y). |
|
| 22. |
The process by which water moves from X to Y through the semi-permeable membrane is called A. diffusion B. osmosis C. active diffusion D. osmoregulation |
B |
| 23. |
Fibrinogen and prothrombin play important roles in the A. deamination of proteins B. clotting of blood C. detoxication of substance D. storage of vitamins |
B |
| 24. |
Deoxygenation blood flows into the right and left lungs through the A. pulmonary vein B. vena cava C. pulmonary artery D. subclavian vein |
C |
| 25. |
Which of the following is a plant excretory product? A. Oil B. Cytokinin C. Resin D. Amino acids |
C |
| 26. |
The movement of the whole organism to an external stimulus is termed A. tropism B. a taxis C. a nastic movement D. a phototropic movement |
B |
| 27. |
Which of the following vertebrae lacks a centrum? A. Atlas B. Axis C. Thoracic D. Lumbar |
A |
| 28. |
The function of the epididymis in mammals is the A. expulsion of urine B. storage of sperms C. circulation of blood D. activation of sperms |
B |
| 29. |
A collection of achenes formed from several carpels of a flower is A. a multiple fruit B. an aggregate fruit C. a shizocarp D. a simple fruit |
C |
| 30. |
Vegetation propagation is described as asexual reproduction because A. reproductive organs are not involved B. new individuals are not formed C. many new plants are produced D. there is no exchange of genetic materials |
D |