JAMB UTME - Biology - 1986 | Green Bridge CBT

Question 1 Rapport

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

Vane

rachis

barbules Bonne réponse

barbs

Détails de la réponse

Voir la réponse

Question 2 Rapport

When the original king and queen of termites die, they are replaced by

the king and queen of another colony

some adult reproductives from the same colony Bonne réponse

some adult workers which are specially fed breed

developing nymphs nurtured as secondary reproductives

Détails de la réponse

Voir la réponse

Question 3 Rapport

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

auricles valve

tricupid valve

ventricles valve

bicuspid valve Bonne réponse

Détails de la réponse

Lisez la note de cours sur Application Of The Principles Of Heredity (WAEC)

Application Of The Principles Of Heredity

Voir la réponse

Question 4 Rapport

The swollen shoot disease of cocoa tree is caused by a

virus Bonne réponse

fungus

bacterium

protozoan

Détails de la réponse

Lisez la note de cours sur Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals (WAEC)

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

Voir la réponse

Question 5 Rapport

Incomplete metamorphosis occurs in the

butterfly

grasshopper Bonne réponse

mosquito

housefly

Détails de la réponse

Lisez la note de cours sur Variety Of Organisms (JAMB)

Lisez la note de cours sur Biological Fuel Generation (WAEC)

Lisez la note de cours sur Physiological Variations (WAEC)

Variety Of Organisms

Biological Fuel Generation

Physiological Variations

Voir la réponse

Question 6 Rapport

Which of the following has cones?

Angiosperms

Gymnosperms Bonne réponse

Pteridophyte

Bryophyte

Détails de la réponse

Lisez la note de cours sur Forms In Which Living Cells Exist (WAEC)

Lisez la note de cours sur Morphology Of Monocotyledonous And Dicotyledonous Plants (WAEC)

Forms In Which Living Cells Exist

Morphology Of Monocotyledonous And Dicotyledonous Plants

Voir la réponse

Question 7 Rapport

The following are methods of soil conservation EXCEPT

contour terracing

strip cropping

contour ploughing

mixed grazing Bonne réponse

Détails de la réponse

Lisez la note de cours sur Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals (WAEC)

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

Voir la réponse

Question 8 Rapport

The fins making up the limbs of the bony fish are

caudal and ventral

ventra and pelvic

pelvic and pectoral Bonne réponse

pectoral and dorsal

Détails de la réponse

Lisez la note de cours sur Ecosystem (WAEC)

Ecosystem

Voir la réponse

Question 9 Rapport

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

Bonne réponse

Détails de la réponse

Lisez la note de cours sur Nutrition (JAMB)

Nutrition

Voir la réponse

Question 10 Rapport

Which of the following is an example of discontinuous variation?

skin colouration

left handedness Bonne réponse

body weight

Height

Détails de la réponse

Lisez la note de cours sur Heredity (JAMB)

Heredity

Voir la réponse

Question 11 Rapport

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

intercostal muscles contract

diaphragm is raised Bonne réponse

ribs are raised

Pressure of the thoracic cavity decreases

Détails de la réponse

Lisez la note de cours sur Respiratory System (WAEC)

Respiratory System

Voir la réponse

Question 12 Rapport

Oxygen liberated during photosynthesis has been demonstrated to come from

carbondioxide

air

water Bonne réponse

chlorophyll

Détails de la réponse

Lisez la note de cours sur Properties And Functions Of The Living Cell (WAEC)

Properties And Functions Of The Living Cell

Voir la réponse

Question 13 Rapport

Gestation in mammals is the period

required for growth after birth

between the formation of the foetus and birth Bonne réponse

of development from zygote to birth

before the formation of the zygote

Détails de la réponse

Voir la réponse

Question 14 Rapport

Which of these disease CANNOT be prevented by immunization?

Poliomyelitis

Tuberculosis

Cholera

onchocerciasis Bonne réponse

Détails de la réponse

Lisez la note de cours sur Properties And Functions Of The Living Cell (WAEC)

Properties And Functions Of The Living Cell

Voir la réponse

Question 15 Rapport

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

Sodium

Potassium

Calcium

Iron Bonne réponse

Détails de la réponse

Lisez la note de cours sur DNA Structure And Replication, RNA Transcription (WAEC)

DNA Structure And Replication, RNA Transcription

Voir la réponse

Question 16 Rapport

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

sebaceous gland

sweat gland

subcubaneous layer

malpighian layer Bonne réponse

Détails de la réponse

Lisez la note de cours sur Tissues And Supporting Systems: (WAEC)

Tissues And Supporting Systems:

Voir la réponse

Question 17 Rapport

Which of these animals is radially symmetrical?

squid

Hydra Bonne réponse

Snail

Cockroach

Détails de la réponse

Lisez la note de cours sur Organization Of Life (WAEC)

Organization Of Life

Voir la réponse

Question 18 Rapport

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

on the same radii Bonne réponse

scattered

on alternate radii

towards the pith

Détails de la réponse

Lisez la note de cours sur Cell Structure (WAEC)

Cell Structure

Voir la réponse

Question 19 Rapport

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 Bonne réponse

Détails de la réponse

Voir la réponse

Question 20 Rapport

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 Bonne réponse

Détails de la réponse

Lisez la note de cours sur Heredity (JAMB)

Heredity

Voir la réponse

Question 21 Rapport

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 Bonne réponse

Détails de la réponse

Lisez la note de cours sur Movement Of Substances Into And Out Of Cells (WAEC)

Lisez la note de cours sur Cellular Respiration (WAEC)

Movement Of Substances Into And Out Of Cells

Cellular Respiration

Voir la réponse

Question 22 Rapport

Fishes are cold blooded because their body temperature is

constantly low

constantly high

dependent on that of their surroundings Bonne réponse

regulated at will

Détails de la réponse

Voir la réponse

Question 23 Rapport

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 Bonne réponse

1 → 2 → 3 → 4

Détails de la réponse

Lisez la note de cours sur Transport System (WAEC)

Lisez la note de cours sur Transport (JAMB)

Lisez la note de cours sur Reproduction (JAMB)

Lisez la note de cours sur Cell Structure (WAEC)

Transport System

Transport

Reproduction

Cell Structure

Voir la réponse

Question 24 Rapport

Which of the following lacks chaetae, tentacles and antennae?

Snail

Crab

Millipede Bonne réponse

Earthworm

Détails de la réponse

Voir la réponse

Question 25 Rapport

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 Bonne réponse

Détails de la réponse

Lisez la note de cours sur Cell Structure (WAEC)

Cell Structure

Voir la réponse

Question 26 Rapport

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

Rainfall, temperature and light Bonne réponse

Salinity, rainfall and altitude

Tides, wind, rainfall and altitude

pH, salinity, rainfall and humidity.

Détails de la réponse

Lisez la note de cours sur Ecological Factors (WAEC)

Lisez la note de cours sur Ecosystem (WAEC)

Ecological Factors

Ecosystem

Voir la réponse

Question 27 Rapport

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

gum

pulp cavity Bonne réponse

cement

enarmel

Détails de la réponse

Lisez la note de cours sur Cell Structure (WAEC)

Cell Structure

Voir la réponse

Question 28 Rapport

Blood circulation in a mammalian is said to be double because

it passes twice through the heart in a complete circuit Bonne réponse

it moves in both arteries and veins

it circulates in both the heart and other organs

the heart contain auricles and ventricles

Détails de la réponse

Lisez la note de cours sur Transport System (WAEC)

Lisez la note de cours sur Adaptation For Survival (WAEC)

Transport System

Adaptation For Survival

Voir la réponse

Question 29 Rapport

Which of these is a trace element?

Iron

Copper Bonne réponse

Calcium

Sulphur

Détails de la réponse

Lisez la note de cours sur Organization Of Life (WAEC)

Organization Of Life

Voir la réponse

Question 30 Rapport

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 Bonne réponse

Détails de la réponse

Voir la réponse

Question 31 Rapport

Deamination occurs in the

kidney

pancreas

spleen

liver Bonne réponse

Détails de la réponse

Lisez la note de cours sur Animal Nutrition (WAEC)

Lisez la note de cours sur Organization Of Life (WAEC)

Lisez la note de cours sur Blood Transfusion (WAEC)

Lisez la note de cours sur Excretory Systems And Mechanisms; Types Of Excretory Systems (WAEC)

Animal Nutrition

Organization Of Life

Blood Transfusion

Excretory Systems And Mechanisms; Types Of Excretory Systems

Voir la réponse

Question 32 Rapport

The structure labelled 1 is the

plumule

radicle

cell membrane

seed coat Bonne réponse

Détails de la réponse

Lisez la note de cours sur Cell Structure (WAEC)

Lisez la note de cours sur Internal Structure Of A Flowering Plant (JAMB)

Cell Structure

Internal Structure Of A Flowering Plant

Voir la réponse

Question 33 Rapport

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

auxanometer

potometer

klinostat Bonne réponse

photometer

Détails de la réponse

Lisez la note de cours sur Respiration (JAMB)

Lisez la note de cours sur Co-ordination And Control (JAMB)

Respiration

Co-ordination And Control

Voir la réponse

Question 34 Rapport

The severe deficiency of vitamin C leads to

Kwashiokor

beriberi

pellagra

scurvy Bonne réponse

Détails de la réponse

Voir la réponse

Question 35 Rapport

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 Bonne réponse

Détails de la réponse

Lisez la note de cours sur DNA Structure And Replication, RNA Transcription (WAEC)

DNA Structure And Replication, RNA Transcription

Voir la réponse

Question 36 Rapport

Which of the following is NOT true of spirogyra?

Reproduces by conjugation

Reproduces by fragmentation

Consist of branched filaments Bonne réponse

Consist of unbranched filaments

Détails de la réponse

Lisez la note de cours sur Forms In Which Living Cells Exist (WAEC)

Forms In Which Living Cells Exist

Voir la réponse

Question 37 Rapport

In an agricultural ecosystem, the biotic component consists of

crop, pest and beneficial insects Bonne réponse

crops, temperature and humidity

pests, beneficial insects and water

crops, water and soil

Détails de la réponse

Lisez la note de cours sur Ecology Of Population (WAEC)

Lisez la note de cours sur Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals (WAEC)

Lisez la note de cours sur Soil (WAEC)

Ecology Of Population

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

Soil

Voir la réponse

Question 38 Rapport

Nastic movement is

response to light stimulus

non-directional Bonne réponse

directional

response to internal stimulus

Détails de la réponse

Lisez la note de cours sur Protein Synthesis (WAEC)

Lisez la note de cours sur Movement (WAEC)

Protein Synthesis

Movement

Voir la réponse

Question 39 Rapport

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 Bonne réponse

Détails de la réponse

Voir la réponse

Question 40 Rapport

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 Bonne réponse

reducing sugar is presents

Détails de la réponse

Lisez la note de cours sur Classification (WAEC)

Lisez la note de cours sur Morphology Of Monocotyledonous And Dicotyledonous Plants (WAEC)

Lisez la note de cours sur Alimentary System (WAEC)

Lisez la note de cours sur Reproduction (Physical Changes In Males And Females) (WAEC)

Classification

Morphology Of Monocotyledonous And Dicotyledonous Plants

Alimentary System

Reproduction (Physical Changes In Males And Females)

Voir la réponse

Question 41 Rapport

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

secondary consumers

primary consumers Bonne réponse

producers

predators

Détails de la réponse

Lisez la note de cours sur Animal Nutrition (WAEC)

Lisez la note de cours sur Food Webs And Trophic Levels (WAEC)

Animal Nutrition

Food Webs And Trophic Levels

Voir la réponse

Question 42 Rapport

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 Bonne réponse

loamy

clay

humus

Détails de la réponse

Lisez la note de cours sur Transport (WAEC)

Lisez la note de cours sur Animal Nutrition (WAEC)

Lisez la note de cours sur Soil (WAEC)

Transport

Animal Nutrition

Soil

Voir la réponse