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 19 Report

The severe deficiency of vitamin C leads to

Kwashiokor

beriberi

pellagra

scurvy Correct answer

Answer Details

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Question 20 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 21 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 22 Report

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

Kidney, liver and gall bladder

pancreas, liver and kidney

liver, kidney and spleen

gall bladder, pancreas and spleen

Correct answer

Answer Details

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Question 23 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 24 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 25 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 26 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 27 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 28 Report

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

Vane

rachis

barbules Correct answer

barbs

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Question 29 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 30 Report

Which of the following is NOT true of spirogyra?

Reproduces by conjugation

Reproduces by fragmentation

Consist of branched filaments Correct answer

Consist of unbranched filaments

Answer Details

Read lesson note on Forms In Which Living Cells Exist (WAEC)

Forms In Which Living Cells Exist

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Question 31 Report

Which of the following lacks chaetae, tentacles and antennae?

Snail

Crab

Millipede Correct answer

Earthworm

Answer Details

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Question 32 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

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Question 33 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 34 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

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Question 35 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 36 Report

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

gum

pulp cavity Correct answer

cement

enarmel

Answer Details

Read lesson note on Cell Structure (WAEC)

Cell Structure

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Question 37 Report

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

fats are presents

carbohydrate is present

protein is present Correct answer

reducing sugar is presents

Answer Details

Read lesson note on Classification (WAEC)

Read lesson note on Morphology Of Monocotyledonous And Dicotyledonous Plants (WAEC)

Read lesson note on Alimentary System (WAEC)

Read lesson note on Reproduction (Physical Changes In Males And Females) (WAEC)

Classification

Morphology Of Monocotyledonous And Dicotyledonous Plants

Alimentary System

Reproduction (Physical Changes In Males And Females)

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Question 38 Report

A larger percentage of tropical soils tends to be acidic because they

contain large quantities of potash

contain large quantities of lime

lose a high proportion of their organic matter to running water

lose lime and potash from the top soil through rain action Correct answer

Answer Details

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Question 39 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 40 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 41 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 42 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 43 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 44 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 45 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 46 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 47 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 48 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 49 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 50 Report

Which of the labelled parts will develop into a new maize plant?

Correct answer

Answer Details

Read lesson note on Nutrition (JAMB)

Nutrition

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