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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 2004

Ecological Zone	Temperature (oC)	Rainfall (mm)
I	45	300
II	32	2000
III	30	2200
IV	15	800

From the table above which of the zones is likely to be desert?

BII

CIII

DIV

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Question 12

jamb 2004

Ecological Zone	Temperature (ºC)	Rainfall (mm)
I	45	300
II	32	2000
III	30	2200
IV	15	800

From the table above high relative humidity will be expected in zones

AI and III

BI and IV

CII and III

DII and IV

View Explanation & Discuss

Question 13

jamb 2004

A caterpillar and an aphid living in different parts of the same plant can be said to

Aoccupy the same ecological niche

Bbe in different habitat

Coccupy different ecological niche

Dbe in the same microhabitats

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Question 14

jamb 2004

The two keys cation involved in the action potential of nervous transmissions are

ANa⁺ an Fe²⁺

BMg²⁺ and K⁺

CNa⁺ and K⁺

DFe²⁺ and Mg²⁺

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Question 15

jamb 2004

If a nursing mother is not producing enough milk, her hormonal system is probably deficient in

Aprolactin

Btestosterone

Cthyroxin

Dinsulin

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Question 16

jamb 2004

Nervous control differs from hormonal control in that the former

Ainvolves only chemical transmision

Bis a lower process

Cproduces short-term changes

Dhas no specific pathway

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Question 17

jamb 2004

Epigeal germination of a seed is characterized by

Amore rapid elongation of the hypocotyl than the epicotyl

Bmore rapid elongation of the epicotyl than the hypocotyl

Cequal growth of both the hypocotyl and epicotyl

Dlack of growth of the hypocotyl

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Question 18

jamb 2004

The eggs of birds contains relatively larger quantities of yolk than those of amphibians and reptiles because

Abirds are generally bigger in size

Bembryonic development is longer in birds

Cthose of birds are fertilized internally

Dbirds lay shelled eggs

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Question 19

jamb 2004

The type of reproduction that is common to both Hydra and yeast

Aconjugation

Bbinary fission

Cgrafting

Dbudding

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Question 20

jamb 2004

The function of the part labelled III is to

Acontract to pull the hair erect

Bconduct nervous impulses

Ccarry blood and nitrogenous waste

Dproduce oil for the skin

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Question 21

jamb 2004

The sweat gland is the structure labelled

BII

CIII

DIV

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Question 22

jamb 2004

The opening of the stoma is controlled by the

Apresence of a pore

Bincrease in solute concentration in the guard cells

Cpresence of guard cells

Ddecrease in solute concentration in the guard cells

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Question 23

jamb 2004

The anaerobic fermentation of a glucose molecule yields

A38 ATP molecules

B2 ATP molecules and alcohol

Cpyruvic acid and alcohol

Dwater and carbon (IV) oxide

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Question 24

jamb 2004

The surface of an alveolus in a mammal is well supplied with tiny blood vessels known as

Aarterioles

Bvenules

Carteries

Dcapillaries

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Question 25

jamb 2004

Which of the following results is to be expected if the set up is left for several hours?

Adecrease in the size of the yam

Bmovement of the salt solution into the water

Cdecrease in the volume of water inside the yam

Dmovement of water from the salt solution into the yam

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Question 26

jamb 2004

Yam is used in this set-up because it

Ais a permeable to the salt solution

Bis a plant material

Cacts as a storage organ

Dacts as a semi-permeable membrane

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Question 27

jamb 2004

The breakdown of fats and oils into simpler absorbable compounds is catalyzed by the group of enzymes called

Alipases

Bhydrolases

Camylases

Dpeptidases

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Question 28

jamb 2004

All living cells require water because it

Ais a medium for all metabolic reactions

Bis a medium that neutralizes the acids in cells

Cis the main source of energy for the cell

Dprevents the development of dieseases in cells

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Question 29

jamb 2004

The gall bladder of mammal has a duct connected to the

Aliver

Bduodenum

Csmall intestine

Dpancreas

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Question 30

jamb 2004

In the internal structure of plants, a wide pith in the centre is common to

Adicot stems and monocot stems

Bdicot stem and monocot roots

Cdicot roots and monocot roots

Ddicot roots and monocot stems

View Explanation & Discuss

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