JAMB UTME - Biology - 1986 | Green Bridge CBT

Sample of different soil types are packed in glass tubes whose lower ends are plugged with cotton wool, if these tubes are suspended in a trough of water, water will rise highest after a few hours in

sand Correct answer

loamy

clay

humus

Answer Details

Read lesson note on Transport (WAEC)

Read lesson note on Animal Nutrition (WAEC)

Read lesson note on Soil (WAEC)

Transport

Animal Nutrition

Soil

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Question 16 Report

In an ecosystem, animals which feed directly on plants are called

secondary consumers

primary consumers Correct answer

producers

predators

Answer Details

Read lesson note on Animal Nutrition (WAEC)

Read lesson note on Food Webs And Trophic Levels (WAEC)

Animal Nutrition

Food Webs And Trophic Levels

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Question 17 Report

Incomplete metamorphosis occurs in the

butterfly

grasshopper Correct answer

mosquito

housefly

Answer Details

Read lesson note on Variety Of Organisms (JAMB)

Read lesson note on Biological Fuel Generation (WAEC)

Read lesson note on Physiological Variations (WAEC)

Variety Of Organisms

Biological Fuel Generation

Physiological Variations

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Question 18 Report

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

intercostal muscles contract

diaphragm is raised Correct answer

ribs are raised

Pressure of the thoracic cavity decreases

Answer Details

Read lesson note on Respiratory System (WAEC)

Respiratory System

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Question 19 Report

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

3 → 2 → 1 → 4

2 → 3 → 1 → 4

2 → 1 → 3 → 4 Correct answer

1 → 2 → 3 → 4

Answer Details

Read lesson note on Transport System (WAEC)

Read lesson note on Transport (JAMB)

Read lesson note on Reproduction (JAMB)

Read lesson note on Cell Structure (WAEC)

Transport System

Transport

Reproduction

Cell Structure

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Question 20 Report

The fins making up the limbs of the bony fish are

caudal and ventral

ventra and pelvic

pelvic and pectoral Correct answer

pectoral and dorsal

Answer Details

Read lesson note on Ecosystem (WAEC)

Ecosystem

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Question 21 Report

Which of the following pairs are fully adapted to terrestrial life?

Ferns and algae

Ferns and mosses

Bryophytes and flowering plants

Flowering plants and conifers Correct answer

Answer Details

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Question 22 Report

For effective functioning of a bird's quill feather, hooks fit on the ridge of the

Vane

rachis

barbules Correct answer

barbs

Answer Details

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Question 23 Report

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

C2H12O6 2C2H5OH + 2CO2

6Co2 + 6H2O C6H12O6 + 6O2

C6H12O6 + 6O2 6CO2 + 6H2O + enegy

C6H12O6 2C2H5OH + 2CO2 + energy Correct answer

Answer Details

Read lesson note on DNA Structure And Replication, RNA Transcription (WAEC)

DNA Structure And Replication, RNA Transcription

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Question 24 Report

Deamination occurs in the

kidney

pancreas

spleen

liver Correct answer

Answer Details

Read lesson note on Animal Nutrition (WAEC)

Read lesson note on Organization Of Life (WAEC)

Read lesson note on Blood Transfusion (WAEC)

Read lesson note on Excretory Systems And Mechanisms; Types Of Excretory Systems (WAEC)

Animal Nutrition

Organization Of Life

Blood Transfusion

Excretory Systems And Mechanisms; Types Of Excretory Systems

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Question 25 Report

Nastic movement is

response to light stimulus

non-directional Correct answer

directional

response to internal stimulus

Answer Details

Read lesson note on Protein Synthesis (WAEC)

Read lesson note on Movement (WAEC)

Protein Synthesis

Movement

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Question 26 Report

Which of these is a trace element?

Iron

Copper Correct answer

Calcium

Sulphur

Answer Details

Read lesson note on Organization Of Life (WAEC)

Organization Of Life

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Question 27 Report

Two main distinguishing features of the cervical vertebra are the presence of

short neural spine and vertebraterial canal Correct answer

prozygapophysis and cervical ribs

large centrum and cervical ribs

vertebraterial canal and large centrum

Answer Details

Read lesson note on Organization Of Life (WAEC)

Read lesson note on Classification (WAEC)

Organization Of Life

Classification

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Question 28 Report

The main function of the structure labelled 2 is to

protect the inner parts of the seed

nourish the embryo and the growing plan Correct answer

keep the inner parts moist

maintain the shape if the seed

Answer Details

Read lesson note on Nutrition (JAMB)

Nutrition

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Question 29 Report

If a woman who is a carrier of sickle cell trait (AS) married a man who is a sickler (SS) and they had four children, how many of them would be normal?

Three

Two

One

None Correct answer

Answer Details

Read lesson note on Heredity (JAMB)

Heredity

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Question 30 Report

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

on the same radii Correct answer

scattered

on alternate radii

towards the pith

Answer Details

Read lesson note on Cell Structure (WAEC)

Cell Structure

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Question 31 Report

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

auricles valve

tricupid valve

ventricles valve

bicuspid valve Correct answer

Answer Details

Read lesson note on Application Of The Principles Of Heredity (WAEC)

Application Of The Principles Of Heredity

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Question 32 Report

In the mammalian skin, melanin and keratin are contained in the

sebaceous gland

sweat gland

subcubaneous layer

malpighian layer Correct answer

Answer Details

Read lesson note on Tissues And Supporting Systems: (WAEC)

Tissues And Supporting Systems:

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Question 33 Report

The hormones which regulates the amount of glucose in the blood is called

adrenalin

auxin

insulin Correct answer

thyroxine

Answer Details

Read lesson note on Hormonal Coordination (WAEC)

Hormonal Coordination

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Question 34 Report

Viruses are regarded as non-living because they

can niether reproduce asexually nor sexually

cannot survive in their respective enviroments

do not possess characteristics that can be transmitted from one generation to the next

can neither respire nor excrete Correct answer

Answer Details

Read lesson note on Cell Structure (WAEC)

Cell Structure

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Question 35 Report

Which of the following lacks chaetae, tentacles and antennae?

Snail

Crab

Millipede Correct answer

Earthworm

Answer Details

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Question 36 Report

An instrument that can be used to demonstrate phototropism and geotropism in plants is the

auxanometer

potometer

klinostat Correct answer

photometer

Answer Details

Read lesson note on Respiration (JAMB)

Read lesson note on Co-ordination And Control (JAMB)

Respiration

Co-ordination And Control

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Question 37 Report

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

keep moving so that the venom will ooze out with bleeding

Wash the wound with water containing antiseptic

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

Keep still and apply a tourniquet above the wound Correct answer

Answer Details

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Question 38 Report

The swollen shoot disease of cocoa tree is caused by a

virus Correct answer

fungus

bacterium

protozoan

Answer Details

Read lesson note on Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals (WAEC)

Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals

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Question 39 Report

The structure labelled 1 is the

plumule

radicle

cell membrane

seed coat Correct answer

Answer Details

Read lesson note on Cell Structure (WAEC)

Read lesson note on Internal Structure Of A Flowering Plant (JAMB)

Cell Structure

Internal Structure Of A Flowering Plant

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Question 40 Report

Which of the following is an example of discontinuous variation?

skin colouration

left handedness Correct answer

body weight

Height

Answer Details

Read lesson note on Heredity (JAMB)

Heredity

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Question 41 Report

Blood circulation in a mammalian is said to be double because

it passes twice through the heart in a complete circuit Correct answer

it moves in both arteries and veins

it circulates in both the heart and other organs

the heart contain auricles and ventricles

Answer Details

Read lesson note on Transport System (WAEC)

Read lesson note on Adaptation For Survival (WAEC)

Transport System

Adaptation For Survival

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Question 42 Report

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

it is made of breakable glass materials

it measures the rate of water intake

it measure the rate of water loss throuh the stern only

the movement of the air buble in the potometer cannot be timed accurately Correct answer

Answer Details

Read lesson note on Movement Of Substances Into And Out Of Cells (WAEC)

Read lesson note on Cellular Respiration (WAEC)

Movement Of Substances Into And Out Of Cells

Cellular Respiration

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Question 43 Report

Which of the following ecological factors are common to both terrestrial and aquatic habitats?

Rainfall, temperature and light Correct answer

Salinity, rainfall and altitude

Tides, wind, rainfall and altitude

pH, salinity, rainfall and humidity.

Answer Details

Read lesson note on Ecological Factors (WAEC)

Read lesson note on Ecosystem (WAEC)

Ecological Factors

Ecosystem

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Question 44 Report

Fishes are cold blooded because their body temperature is

constantly low

constantly high

dependent on that of their surroundings Correct answer

regulated at will

Answer Details

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Question 45 Report

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

Sodium

Potassium

Calcium

Iron Correct answer

Answer Details

Read lesson note on DNA Structure And Replication, RNA Transcription (WAEC)

DNA Structure And Replication, RNA Transcription

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Question 46 Report

The main organic substances found in the human body are

carbohydrates, proteins and salts

salts, fats and proteins

fat, carbohydrates and protein Correct answer

salts, fats and carbohydrates

Answer Details

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Question 47 Report

The following are methods of soil conservation EXCEPT

contour terracing

strip cropping

contour ploughing

mixed grazing Correct answer

Answer Details

Read lesson note on Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals (WAEC)

Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals

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Question 48 Report

In an agricultural ecosystem, the biotic component consists of

crop, pest and beneficial insects Correct answer

crops, temperature and humidity

pests, beneficial insects and water

crops, water and soil

Answer Details

Read lesson note on Ecology Of Population (WAEC)

Read lesson note on Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals (WAEC)

Read lesson note on Soil (WAEC)

Ecology Of Population

Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals

Soil

View Answer

Question 49 Report

Gestation in mammals is the period

required for growth after birth

between the formation of the foetus and birth Correct answer

of development from zygote to birth

before the formation of the zygote

Answer Details

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Question 50 Report

The male cockroach differs from the female by having

mandibles

a pair of style Correct answer

spiracles

a pair of cerci

Answer Details

Read lesson note on Heredity (JAMB)

Heredity

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