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Biology Past Questions

Study and practice Biology past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.

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Past Questions

50 questions

Question 1 of 20 50 total questions

Question 11

jamb 1984

The transect method can be used in ecology to show the

ANumber of plants and animals in a habitat

BPopulation of a particular plant species

CDistribution of organisms along a line

DHeights of trees in section of a forest

ENumber of young plants across a forest

View Explanation & Discuss

Question 12

jamb 1984

Which of the following adaptations is NOT concerned with the flight of birds?

AStreamlined shape

BPresence of powerful muscles

CReduced body weight

DBroad sternum

EWebbed feet

View Explanation & Discuss

Question 13

jamb 1984

If an animal is very active and has good muscular control, it is likely to have well-developed

AOlfactory lobes

BCerebral hemisphere

COptic lobes

DCerebellum

ESpinal cord

View Explanation & Discuss

Question 14

jamb 1984

Which of the following is NOT a waste product of plants?

ATannins

BOxygen

CCarbondioxide

DSap

EAlkaloids

View Explanation & Discuss

Question 15

jamb 1984

How many nuclei are found in pollen tube during fertilization?

View Explanation & Discuss

Question 16

jamb 1984

A flowering plant is monoecious if

AThe androecium is found on one plant

BThe gynoecium is monocarpous

CIt produce essential organ

DThe gynoecium and androecium are on the same plant

EThe flowers are unisexual

View Explanation & Discuss

Question 17

jamb 1984

Which of the following statements is NOT true of the piliferous layer of root? It

AHas a very thin cuticle

BIs the outermost layer of the cortex

CMay bear root hairs

DBreaks down as the root ages

EIs replaced by cork in old roots

View Explanation & Discuss

Question 18

jamb 1984

Which of the following types of vertebrae occur in equal numbers in the rabbit, rat and man?

ACaudal

BThoracic

CLumber

DCervical

ESacral

View Explanation & Discuss

Question 19

jamb 1984

The parts used by the tapeworm to fasten itself to the host’s intestine are the

ANeck and suckers

BHooks and suckers

CRostellum and suckers

DYoung proglottis and neck

ERostellum, hooks and suckers

View Explanation & Discuss

Question 20

jamb 1984

The removal of a man’s pancreas by surgical operation can affect only the digestion of

AStarch

BStarch, protein and fats

COils and fats

DProteins

ECarbohydrates and fats

View Explanation & Discuss

Question 21

jamb 1984

In the Burret test, some protein was mixed with sodium hydroxide solution. Which of the following chemicals should be added to the mixture for a positive results?

AMercurous nitrates

BCopper sulphate

CMercuric nitrate

DSodium carbonate

EAmmonium hydroxide

View Explanation & Discuss

Question 22

jamb 1984

A man with normal haemoglobin (AA) marries a woman who has sickle-cell haemoglobin (SS). They have a child who has a sickle-cell trait. Which of the following genotypes could be associated with the child’s haemoglobin?

AAA

BOO

CAO

DAS

ESS

View Explanation & Discuss

Question 23

jamb 1984

Underground stems which grow horizontally through the soil are

ABulbs

BRhizomes

CRunners

DCorms

EStolons

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Question 24

jamb 1984

Anaerobic respiration in yeast produces

ACarbondioxide and ethanol

BCarbondioxide and water

CCarbondioxide and oxygen

DCarbondioxide and glucose

EEthanol and water

View Explanation & Discuss

Question 25

jamb 1984

Pepsin is a digestive enzymes which breaks

ACellulose into glucose molecules

BCarbohydrates into simple sugars

CProtein into peptones

DFats into glycerol and fatty acid

ESucrose into glucose and fructose

View Explanation & Discuss

Question 26

jamb 1984

Blood clotting is initiated by

ALeucocytes

BPlatelets

CHaemolymph

DHaemoglobin

EErythrocytes

View Explanation & Discuss

Question 27

jamb 1984

Exoskeleton is NOT found in the

AMaggot

BMosquito larva

CEarth worm

DCaterpillar

ETermite

View Explanation & Discuss

Question 28

jamb 1984

The dorsal and anal fins of fish are used for

AUpward movement

BControlling rolling

CDownward movement

DSteering

EBuoyancy

View Explanation & Discuss

Question 29

jamb 1984

Which of the following statement is NOT true of enzymes? They

AAre proteins

BNeed cofactors to activate them

CAre sensitive in their action

DAre specific in their action

ECan withstand high temperature

View Explanation & Discuss

Question 30

jamb 1984

Osmosis can be defined as the movement of

AMolecules from solution of higher concentration to low concentration

BMolecules from solution of low concentration to high concentration

CWater from solution of high concentration to low concentration

DWater across a semi-permeable membrane from solution of low concentration to high concentration

EWater across a semi-permeable membrane from solution of high concentration to low concentration

View Explanation & Discuss

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