Year :
2009
Title :
Biology
Exam :
JAMB Exam
Paper 1 | Objectives
11 - 20 of 50 Questions
| # | Question | Ans |
|---|---|---|
| 11. |
The part of alimentary system of a bird where food is ground into small particles is the? A. cloaca B. stomach C. crop D. gizzard Detailed SolutionThe gizzard is the mechanical stomach of a bird. It is located just after the true or glandular stomach in the gastrointestinal system. Since poultry have no teeth and swallow feed whole, this muscular organ, sometimes called hen's teeth, mechanically grinds and mixes the bird's feed.There is an explanation video available below. |
|
| 12. |
Which of the following describes the sequence of blood flow from the heart to a tissue? A. Heart→ artery→ arteriole →tissue? B. heart→ vein →venule →tissue C. heart →venule→ vein →tissue D. heart →arteriole →artery →tissue |
|
| 13. |
The enzymes of the glycolytic pathway are located in the? A. mitochondria B. gastric juice C. plasma D. cytoplasm Detailed SolutionGlycolysis is a metabolic pathway that does not require oxygen for the breakdown of glucose into pyruvate or pyruvic acid by enzymes in the cytoplasm of the cell.Then the NADH + H+ generated by glycolysis has to be transferred to the mitochondrion to be oxidized, and thus to regenerate the NAD+ necessary for glycolysis to continue. There is an explanation video available below. |
|
| 14. |
In insects, the structure that performs the same function as the kidney in man is the? A. nephridrium B. flame cell C. malphigian tubule D. trachea |
|
| 15. |
The axial skeleton is found in the A. skull, ribs, vertebral column and breast bone B. skull, humerus,vertebral column and ribs C. breastbone, clavicle, ribs and vertebral column D. femur, sternum,ulna and skull |
|
| 16. |
The reproductive system of a male mammal is made up of? A. claspers, prostrate, gland, sperm duct and vas deferens B. testis, prostrate gland, sperm duct and penis C. oviduct, urethra, testis and sperm duct D. testis, uterus, prostrate gland and sperm duct Detailed SolutionMale reproductive structures are: the penis, scrotum and testicles, vas deferens, prostate and urethra.The male reproductive system is responsible for sexual function, as well as urination. There is an explanation video available below. |
|
| 17. |
In a bean seed, absorption of water at the beginning of germination is through the? A. hilium B. micropyle C. testa D. plumule Detailed SolutionThe micropyle helps to absorb water at the time of germination of the seedThere is an explanation video available below. |
|
| 18. |
The most important ecological factor in a terrestrial environment is? A. rainfall B. humidity C. wind D. soil Detailed SolutionThe land surface and the soil are the main factorsThere is an explanation video available below. |
|
| 19. |
The association between bacteria residing in the rumen of the ruminant is? A. parasitism B. predation C. saprophytism D. mutualism Detailed SolutionMutualism: bacteria in the rumen of ruminants, algae and fungi, etc.There is an explanation video available below. |
|
| 20. |
A marine protozoan is likely to have no contractile vacuole mainly because the cytoplasm is A. isotonic to sea water B. hypotonic to sea water C. hypertonic to sea water D. impervious to sea water |
| 11. |
The part of alimentary system of a bird where food is ground into small particles is the? A. cloaca B. stomach C. crop D. gizzard Detailed SolutionThe gizzard is the mechanical stomach of a bird. It is located just after the true or glandular stomach in the gastrointestinal system. Since poultry have no teeth and swallow feed whole, this muscular organ, sometimes called hen's teeth, mechanically grinds and mixes the bird's feed.There is an explanation video available below. |
|
| 12. |
Which of the following describes the sequence of blood flow from the heart to a tissue? A. Heart→ artery→ arteriole →tissue? B. heart→ vein →venule →tissue C. heart →venule→ vein →tissue D. heart →arteriole →artery →tissue |
|
| 13. |
The enzymes of the glycolytic pathway are located in the? A. mitochondria B. gastric juice C. plasma D. cytoplasm Detailed SolutionGlycolysis is a metabolic pathway that does not require oxygen for the breakdown of glucose into pyruvate or pyruvic acid by enzymes in the cytoplasm of the cell.Then the NADH + H+ generated by glycolysis has to be transferred to the mitochondrion to be oxidized, and thus to regenerate the NAD+ necessary for glycolysis to continue. There is an explanation video available below. |
|
| 14. |
In insects, the structure that performs the same function as the kidney in man is the? A. nephridrium B. flame cell C. malphigian tubule D. trachea |
|
| 15. |
The axial skeleton is found in the A. skull, ribs, vertebral column and breast bone B. skull, humerus,vertebral column and ribs C. breastbone, clavicle, ribs and vertebral column D. femur, sternum,ulna and skull |
| 16. |
The reproductive system of a male mammal is made up of? A. claspers, prostrate, gland, sperm duct and vas deferens B. testis, prostrate gland, sperm duct and penis C. oviduct, urethra, testis and sperm duct D. testis, uterus, prostrate gland and sperm duct Detailed SolutionMale reproductive structures are: the penis, scrotum and testicles, vas deferens, prostate and urethra.The male reproductive system is responsible for sexual function, as well as urination. There is an explanation video available below. |
|
| 17. |
In a bean seed, absorption of water at the beginning of germination is through the? A. hilium B. micropyle C. testa D. plumule Detailed SolutionThe micropyle helps to absorb water at the time of germination of the seedThere is an explanation video available below. |
|
| 18. |
The most important ecological factor in a terrestrial environment is? A. rainfall B. humidity C. wind D. soil Detailed SolutionThe land surface and the soil are the main factorsThere is an explanation video available below. |
|
| 19. |
The association between bacteria residing in the rumen of the ruminant is? A. parasitism B. predation C. saprophytism D. mutualism Detailed SolutionMutualism: bacteria in the rumen of ruminants, algae and fungi, etc.There is an explanation video available below. |
|
| 20. |
A marine protozoan is likely to have no contractile vacuole mainly because the cytoplasm is A. isotonic to sea water B. hypotonic to sea water C. hypertonic to sea water D. impervious to sea water |