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Biology Past Questions

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Past Questions

50 questions

Question 1 of 20 50 total questions

Question 11

jamb 1986

Deamination occurs in the

Akidney

Bpancreas

Cspleen

Dliver

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Question 12

jamb 1986

If a person is bitten by a snake on the leg, it is advisable for him to

Akeep moving so that the venom will ooze out with bleeding

BWash the wound with water containing antiseptic

Cbandage the wound so that germs do not get in through it

DKeep still and apply a tourniquet above the wound

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Question 13

jamb 1986

The equation that can be used to summarize the process of anaerobic breakdown of sugar is

AC₂H₁₂O₆ 2C₂H₅OH + 2CO₂

B6Co₂ + 6H₂O C₆H₁₂O₆ + 6O₂

CC₆H₁₂O₆ + 6O₂ 6CO₂ + 6H₂O + enegy

DC₆H₁₂O₆ 2C₂H₅OH + 2CO₂ + energy

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Question 14

jamb 1986

Which of the following statement is NOT correct with respect to inhalation in mammals? The

Aintercostal muscles contract

Bdiaphragm is raised

Cribs are raised

DPressure of the thoracic cavity decreases

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Question 15

jamb 1986

A major limitation in the use of the potometer for measuring the rate of transpiration is that

Ait is made of breakable glass materials

Bit measures the rate of water intake

Cit measure the rate of water loss throuh the stern only

Dthe movement of the air buble in the potometer cannot be timed accurately

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Question 16

jamb 1986

The aperture between the left auricle and the left ventricle is guarded by the

Aauricles valve

Btricupid valve

Cventricles valve

Dbicuspid valve

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Question 17

jamb 1986

Which is the correct order of water loss from the leaf? 1 Mesophyll 2 Veins 3 Substomatals cavity 4 Stomata

A3 → 2 → 1 → 4

B2 → 3 → 1 → 4

C2 → 1 → 3 → 4

D1 → 2 → 3 → 4

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Question 18

jamb 1986

Blood circulation in a mammalian is said to be double because

Ait passes twice through the heart in a complete circuit

Bit moves in both arteries and veins

Cit circulates in both the heart and other organs

Dthe heart contain auricles and ventricles

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Question 19

jamb 1986

Evidence that a tooth is a living part of the mammalian can be found within the

Agum

Bpulp cavity

Ccement

Denarmel

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Question 20

jamb 1986

The three important organs that are situated close to the stomach are

AKidney, liver and gall bladder

Bpancreas, liver and kidney

Cliver, kidney and spleen

Dgall bladder, pancreas and spleen

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Question 21

jamb 1986

The extract from food substance reacting with sodium hydroxide and copper sulphate solutions will produce violet to purple coloration if

Afats are presents

Bcarbohydrate is present

Cprotein is present

Dreducing sugar is presents

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Question 22

jamb 1986

In addition to the high calories derived from fats and oils, they are

Aused in producing new cells

Bnecessary for enzyme formation

Cused as insulators for cold

Drequired for growth

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Question 23

jamb 1986

The severe deficiency of vitamin C leads to

AKwashiokor

Bberiberi

Cpellagra

Dscurvy

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Question 24

jamb 1986

Which of the following elements is essential for the formation of haemoglobin?

ASodium

BPotassium

CCalcium

DIron

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Question 25

jamb 1986

The main organic substances found in the human body are

Acarbohydrates, proteins and salts

Bsalts, fats and proteins

Cfat, carbohydrates and protein

Dsalts, fats and carbohydrates

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Question 26

jamb 1986

Which of these is a trace element?

AIron

BCopper

CCalcium

DSulphur

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Question 27

jamb 1986

Oxygen liberated during photosynthesis has been demonstrated to come from

Acarbondioxide

Bair

Cwater

Dchlorophyll

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Question 28

jamb 1986

The stem differs from the root in having the xylem and phloem strands

Aon the same radii

Bscattered

Con alternate radii

Dtowards the pith

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Question 29

jamb 1986

The fins making up the limbs of the bony fish are

Acaudal and ventral

Bventra and pelvic

Cpelvic and pectoral

Dpectoral and dorsal

View Explanation & Discuss

Question 30

jamb 1986

The male cockroach differs from the female by having

Amandibles

Ba pair of style

Cspiracles

Da pair of cerci

View Explanation & Discuss

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