Biology, 1982, JAMB Exam, Exam, Paper 1 | Objectives

Paper Info

Year :

1982

Title :

Biology

Exam :

JAMB Exam

Paper 1 | Objectives

21 - 30 of 50 Questions

#	Question	Ans
21.	Treatment of a poor soil with lime supplies A. Sulphur B. Calcium C. Phosphorus D. Sodium E. Nitrogen Show Content Detailed Solution Treating the soil with lime is to improve the calcium content of the soil. It provides a source of calcium and magnesium for plants.	B
22.	In the enzyme (amlyase) reactions of starch → sugar starch is referred to as the A. substrate B. product C. enzyme D. enzyme-substrate complex E. reaction mixture	A
23.	ONE of the major causes of haemophilia is lack of A. firbrinogen B. amylase C. white blood corpuscles D. red blood corpuscles E. plasma	A
24.	In man, identical twins occur when A. An ovum is fertilized by a sperm and then divide into two, each forming a separate embryo B. an ovum fertilized by two sperms and then divides into two, each forming an embryo C. two ova are fertilized at the same tine each forming an embryo D. two ova are fertilized by a single sperm each forming an embryo after fertilization E. one ovum first divides into two and each half is fertilized by a sperm before developing into an embryo	A
25.	The parts of the mammalian eye that strongly bend light rays are the A. cornea and the lens B. cornea and aqueous humour C. cornea and vitreous humour D. lens and aqueous humour E. lens and vitreous humour Show Content Detailed Solution - The cornea acts as the eye's outermost lens. It functions like a window that controls and focuses the entry of light into the eye. The cornea contributes between 65- 75 percent of the eye's total focusing power. When light strikes the cornea, it bends--or refracts--the incoming light onto the lens.	A
26.	Which of these statements is NOT true of insects? A. They are anthropods B. Their body is divide into three distinct regions of head, thorax and abdomen C. Their thorax comprises three segments, only two of which bear a pair of appendages each D. Respiration is by means of trachea E. They undergo metamorphosis	C
27.	When an operculate fish breathes it takes in water through the A. mouth and passes it out through the same way B. mouth and passes it out through the operculum C. operculum and passes it out through the mouth D. operculum and passes it out through the nostrils E. nostrils and passes it out through the operculum	B
28.	Which of the following tissue are made up of dead cells? A. Meristematic B. Xylem vessels C. Cambium D. Mesophyll E. Palisade	B
29.	External ears of mammals consist of A. pinna and tympanum B. pinna only C. auditory meatus only D. auditory meatus and pinna E. auditory meatus and tympanum	D
30.	Any dry fruit which can break into several parts each containing one seed is a A. capsule B. aggregrate fruit C. legume D. schizocarp E. follicle	D

21.	Treatment of a poor soil with lime supplies A. Sulphur B. Calcium C. Phosphorus D. Sodium E. Nitrogen Show Content Detailed Solution Treating the soil with lime is to improve the calcium content of the soil. It provides a source of calcium and magnesium for plants.	B
22.	In the enzyme (amlyase) reactions of starch → sugar starch is referred to as the A. substrate B. product C. enzyme D. enzyme-substrate complex E. reaction mixture	A
23.	ONE of the major causes of haemophilia is lack of A. firbrinogen B. amylase C. white blood corpuscles D. red blood corpuscles E. plasma	A
24.	In man, identical twins occur when A. An ovum is fertilized by a sperm and then divide into two, each forming a separate embryo B. an ovum fertilized by two sperms and then divides into two, each forming an embryo C. two ova are fertilized at the same tine each forming an embryo D. two ova are fertilized by a single sperm each forming an embryo after fertilization E. one ovum first divides into two and each half is fertilized by a sperm before developing into an embryo	A
25.	The parts of the mammalian eye that strongly bend light rays are the A. cornea and the lens B. cornea and aqueous humour C. cornea and vitreous humour D. lens and aqueous humour E. lens and vitreous humour Show Content Detailed Solution - The cornea acts as the eye's outermost lens. It functions like a window that controls and focuses the entry of light into the eye. The cornea contributes between 65- 75 percent of the eye's total focusing power. When light strikes the cornea, it bends--or refracts--the incoming light onto the lens.	A

26.	Which of these statements is NOT true of insects? A. They are anthropods B. Their body is divide into three distinct regions of head, thorax and abdomen C. Their thorax comprises three segments, only two of which bear a pair of appendages each D. Respiration is by means of trachea E. They undergo metamorphosis	C
27.	When an operculate fish breathes it takes in water through the A. mouth and passes it out through the same way B. mouth and passes it out through the operculum C. operculum and passes it out through the mouth D. operculum and passes it out through the nostrils E. nostrils and passes it out through the operculum	B
28.	Which of the following tissue are made up of dead cells? A. Meristematic B. Xylem vessels C. Cambium D. Mesophyll E. Palisade	B
29.	External ears of mammals consist of A. pinna and tympanum B. pinna only C. auditory meatus only D. auditory meatus and pinna E. auditory meatus and tympanum	D
30.	Any dry fruit which can break into several parts each containing one seed is a A. capsule B. aggregrate fruit C. legume D. schizocarp E. follicle	D