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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.

50 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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Past Questions

50 questions

Question 1 of 20 50 total questions

Question 1

jamb 1983

Which of the following will not allow osmosis to take place

Apig's bladder

Bcellophane

Cparchment paper

Dtransparent polythene

Ecow's bladder

View Explanation & Discuss

Question 2

jamb 1983

If an isolated living cell is left in distilled water for two hours, it is likely to

Alose some of its water to the surrounding water

Blose all of its water to the surrounding water

Creproduce by binary fission

Dbecome more turgid

Edie due to excess water

View Explanation & Discuss

Question 3

jamb 1983

Which of the labelled part in the figure above will develop into new bulb?

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Question 4

jamb 1983

The main function of 4 is to

Asurround inner tissues

Bproduce cork

Cproduce root hairs

Dproduce lateral roots

Eproduce more of 3

View Explanation & Discuss

Question 5

jamb 1983

The main function of 6 is to

Aseparate 5 from 7

Bproduce more of 5 and 7

Cproduce cork

Dtranslocate water and mineral salt

Econduct carbondioxide to the other plant

View Explanation & Discuss

Question 6

jamb 1983

Which of the following features can be used to identify the figure above

APosition of 7

Bits circular nature

CNumber of 5

DPresence of 3

Ewidth of 2

View Explanation & Discuss

Question 7

jamb 1983

The path taken by glucose from the ileum to the heart is

AIleum →hepatic portal vein →hepatic artery → vena cava → heart

BIleum → hepatic portal artery →hepatic artery → vena cava → heart

CIleum → hepatic portal vein → vena cava → heart

DIleum → hepatic vein → vena cava → heart

EIleum → hepatic portal vein → hepatic vein → vena cava → heart

View Explanation & Discuss

Question 8

jamb 1983

What is the genetic ratio of the F2 generation if members of F generation are allowed to self-pollinate?

A1 tall : 3 short

B3 tall : 1 short

C1 tall : 1 short

D4 short : 0 tall

E4 tall : 0 short

View Explanation & Discuss

Question 9

jamb 1983

Urea is produced in the

ALiver

BBladder

CSpleen

DKidneys

EGall bladder

View Explanation & Discuss

Question 10

jamb 1983

When spirogyra cell is immersed in a salt solution more concentrated than its cell sap, it

ARemains unchanged

BTakes up water an burst

CAbsorbs a little water

DLoses water and shrivels

EBecomes turgid

View Explanation & Discuss

Question 11

jamb 1983

Which of the following statements about the dentition of man is INCORRECT ? man has

AMore molars than incisors

BNo diastema

CThe same number of teeth on upper and lower jaw

DA total of thirty-two teeth

EA total of six molars

View Explanation & Discuss

Question 12

jamb 1983

‘Jointed skeleton’ is absent in the

ACockroach

BSpider

CMillipede

DSnail

EDragon fly

View Explanation & Discuss

Question 13

jamb 1983

Which of the following statements about the rate of transpiration is INCORRECT? It is

ADependent on temperature

BAffected by changes in light intensity

CUnaffected by humidity

DDependent on air movement

EAffected by availability of water

View Explanation & Discuss

Question 14

jamb 1983

In rhizopus carbohydrate is stored in the form of

AGlucose

BParamylon

CGlycogen

DStarch

EOil

View Explanation & Discuss

Question 15

jamb 1983

Which sequence represents the correct order of organisms un a food chain? 1. Toad 2. Mucuna 3. Grasshopper 4. Snake 5. Hawk

A5 → 4 → 1 → 3 → 2

B1 → 2 → 3 → 4 → 5

C2 → 1 → 3 → 4 → 5

D2 → 3 →1 → 5 →4

E2 → 3 → 1 → 4 → 5

View Explanation & Discuss

Question 16

jamb 1983

Which of the following is NOT a characteristic of monocot plants?

AOccurrence of secondary thickening

BParallel venation

CScattered vascular bundles

DFloral parts arranged in threes

EPerianth is usually insignificant

View Explanation & Discuss

Question 17

jamb 1983

Which of the following instruments is used for determining turbidity of water?

AThermometer

Bsecchi disc

Crain guage

DHydrometer

EWind vane

View Explanation & Discuss

Question 18

jamb 1983

The function of the ossicles (malleus, incus and stapes) in the mammalian ear is

ATransmission of vibrations

BRegulation of pressure

CSupport of the inner ear

DMaintenance of balance during motion

ESecretion of oil

View Explanation & Discuss

Question 19

jamb 1983

The tuber cassava is NOT a stem tuber because it

AIs distended with food reserve

BHas an aerial shoot portion

CHas other structure that could be called root

DLacks axillary buds

EHas a bark over its stored food

View Explanation & Discuss

Question 20

jamb 1983

In a positive phototropic response of a coleoptile, the region of greatest curvature is brought about by the

Amovement of auxins away from the region of curvature

Beven distribution of auxins in all parts of the coleoptile

Cinhibition of growth by auxins in the region f smaller curvature

Dconcentration of auxins in the region of curvature

Eabsence of auxins in the coleoptile

View Explanation & Discuss

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