JAMB UTME - Biology - 1981 | Green Bridge CBT

Question 1 Report

Nitrification means

conversion of nitrates to nitrogen

fixing nitrogen into plants

conversion of nitrates to nitrites

changing of ammonia to nitrities, then nitrates

nitrogen cycle

Answer Details

Read lesson note on Nitrogen Cycle (WAEC)

Nitrogen Cycle

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Question 2 Report

Which of the following is the dental formula of man?

i(2/2) c(0/1) pm(2/2) m(3/3)

i(2/2) c(1/1) pm(2/0) m(3/3)

i(2/2) c(1/1) pm(2/2) m(3/3)

i(2/2) c(1/1) pm(3/3) m(2/2)

i(2/2) c(1/1) pm(2/3) m(3/3)

Answer Details

Read lesson note on Physiological Variations (WAEC)

Physiological Variations

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Question 3 Report

Which of the following instruments is used to demonstrate the response of roots and shoots to gravity?

Klinostat

Manometer

Porometer

Potometer

Photometer

Answer Details

Read lesson note on Natural Habitats (JAMB)

Natural Habitats

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Question 4 Report

A surprising fact about sickle cell disease is that it

affects only black people

kills the patient

is hereditary

affects blood cells

weakens the patient

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Question 5 Report

Which of the following insects has an incomplete metamorphosis during its life circle?

Butterfly

Bee

Mosquito

House-fly

Grasshopper

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Question 6 Report

Which of the following statement is NOT true of symbiosis?

Symbionts must be living

It is an association of 'give and take'

The association may involve two plants

Association between two similar species

Symbionts derive mutual benefit

Answer Details

Read lesson note on Symbiotic Interactions Of Plants And Animals (JAMB)

Read lesson note on Natural Habitats (JAMB)

Symbiotic Interactions Of Plants And Animals

Natural Habitats

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Question 7 Report

The joint at Y in the figure above is

ball and socket

hinge

pivot

rivet

none of the above

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Question 8 Report

The rate of transpiration of a leafy shoot would be highest under

damp, cold, still air

damp, warm, moving air

dry, warm, moving air

dry, cold, moving air

dry, warm, still air

Answer Details

Read lesson note on Ecological Management (WAEC)

Read lesson note on Evolution (Recombination DNA) (WAEC)

Ecological Management

Evolution (Recombination DNA)

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Question 9 Report

The tissue which connects a muscle to a bone is a

cartiligae

muscle fibre

tendon

ligament

connecting fibre

Answer Details

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

Tissues And Supporting Systems:

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Question 10 Report

Growing yam tendrils climb for support. This growth response is

haptotropism

geotropism

phototropism

hydrotropism

chemotropism

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Question 11 Report

The bone labelled X in the figure above is the

ulna

fibula

radius

humerus

tibia

Answer Details

Read lesson note on Cell Structure (WAEC)

Cell Structure

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Question 12 Report

The hepatic portal vein is unique because it

carries deoxygenated blood

begins and ends with capillaries

is the largest vein in mammals

carries digested food

is the shortest vein in mammals

Answer Details

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Question 13 Report

The mushroom is an organism which feeds

parasitically

saprophytically

holozoically

symbiotically

autotrophically

Answer Details

Read lesson note on Humans And Environment (JAMB)

Read lesson note on Biotechnology (WAEC)

Humans And Environment

Biotechnology

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Question 14 Report

Choose the sequence which represents the correct order of organisms in a food chain.

Grass, snake, toad, grasshopper, hawk

Grass, grasshopper, toad, snake, hawk

Grass, grasshopper, snake, toad, hawk

Grass, snake, grasshopper, toad, hawk

Grass, toad, snake, grasshopper, hawk

Answer Details

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

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

Food Webs And Trophic Levels

Reproduction (Physical Changes In Males And Females)

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Question 15 Report

What is name of the respiratory organ of the crab?

Tubules

Trachaea

Spiracles

Lungs

Gills

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Question 16 Report

Normally any character shown by an organism is due to the effects of

hormones and chromosomes

chromosomes

mutation

hormones and genes

genes and enviroment

Answer Details

Read lesson note on Genetic Terminologies (WAEC)

Read lesson note on Chromosomes: The Basis Of Heredity (WAEC)

Genetic Terminologies

Chromosomes: The Basis Of Heredity

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Question 17 Report

If the anthers of a flower mature before the stigma, the condition is termed

epigyny

hypogyny

protogyny

protandry

perigyny

Answer Details

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

Internal Structure Of A Flowering Plant

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Question 18 Report

Which of the structure becomes the seed coat after fertilization?

Answer Details

Read lesson note on Regulation Of Internal Environment (WAEC)

Regulation Of Internal Environment

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Question 19 Report

The two types of human tapeworm can be distinguished by the presence or absence of

scolex

hook

head

sucker

proglottis

Answer Details

Read lesson note on Classification (WAEC)

Read lesson note on Cell Structure (WAEC)

Classification

Cell Structure

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Question 20 Report

Which of the following is NOT true of wind-pollinated flowers?

A large amount of pollen produced

Light smooth pollen grains

Small inconspicuous flowers

Scented petals

Large pendulous anther

Answer Details

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

Internal Structure Of A Flowering Plant

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Question 21 Report

Which of the following is NOT a function of the liver?

Regulation of blood sugar

Storage of iron

Formation of bile

Breakdown of excess amino acids

Excretion of urea from the blood

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Question 22 Report

If Benedict's solution gives a positive result in a food test, the food contains

sugar

protein

oil

fat

cellulose

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Question 23 Report

Which of these substance is likely to be deficient in the diet of a person having goitre?

potassuim

calcium

iodine

sodium

Phosphorus

Answer Details

Read lesson note on Animal Nutrition (WAEC)

Animal Nutrition

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Question 24 Report

A fruit formed from a single flower having several free carpels is

a multiple fruit

a dry dehiscent fruit

a dry indehiscent fruit

a simple fruit

an aggregate fruit

Answer Details

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

Morphology Of Monocotyledonous And Dicotyledonous Plants

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Question 25 Report

which of the labelled tissues in the figure above is responsible for transport of mineral salts and water in living plants?

Answer Details

Read lesson note on Transport: Guttation (WAEC)

Transport: Guttation

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Question 26 Report

Which of the following statements is NOT true of menstruation?

It occurs monthly

The discharge contains amniotic fluid

Its signifies no conception

It involves the lining of uterus

It may cause pains

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Question 27 Report

Accommodation of the human eye is best described as the

ability to see distant objects

movement of upper and lower eyelids

focusing of near and distant objects

changing of lens shape due to varying light intensities

constant adjustment of the iris

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Question 28 Report

The thoracic vertebrae of a mammal is characterized by the

vertebraterial canal

prominent neural arch

prominent transverse

prominent neural spine

prominent centrum

Answer Details

Read lesson note on Organization Of Life (WAEC)

Organization Of Life

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Question 29 Report

The correct route for a piece of bread eaten by a mammal is

oral cavity - oesophagus - stomach - ileum - rectum

oral - cavity - stomach - oesophagus - duodenum - ileum - rectum

oral cavity - oesophagus - duodenum - rectum

oral cavity - oesophagus - ileum - stomach - duodenum - rectum

oral cavity - oesophagus - stomach - ileum - duodenum - rectum

Answer Details

Read lesson note on Alimentary System (WAEC)

Alimentary System

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Question 30 Report

In which of the following plants is swollen shoot disease common?

Groundnut

cocoa

Corn

Cotton

Rubber

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Question 31 Report

A person whose blood can be donated to all other people, must have the blood group

none of the above

Answer Details

Read lesson note on Support And Movement (JAMB)

Support And Movement

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Question 32 Report

Milk protein is hydrolyzed by

renin

amylase

lipase

lactase

pepsin

Answer Details

Read lesson note on Protein Synthesis (WAEC)

Protein Synthesis

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Question 33 Report

The deficiency of vitamin D leads to

scurvy

pellagra

rickets

beriberi

polio

Answer Details

Read lesson note on Population Studies By Sampling (WAEC)

Population Studies By Sampling

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Question 34 Report

A plant which has a horizontal underground stem is

rhizome

corm

creeper

tuber

bulb

Answer Details

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

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

Forms In Which Living Cells Exist

Tissues And Supporting Systems:

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Question 35 Report

In a bakery, yeast is added to flour to make bread rise. This is possible because yeast produces

alcohol

oxygen

carbon dioxide

energy

ethanol

Answer Details

Read lesson note on Movement (WAEC)

Read lesson note on Nucleic Acids (WAEC)

Movement

Nucleic Acids

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Question 36 Report

Where is the food stored in yam plant?

stem

Bud

Adventitous root

Leaves

Tap root

Answer Details

Read lesson note on Protein Synthesis (WAEC)

Protein Synthesis

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Question 37 Report

What is the genetic ratio of a cross between homozygous tall plant and a homozygous dwarf plant?

0 tall : 4 short

3 tall : 1 short

2 short : 2 tall

1 tall : 1 short

4 tall : o short

Answer Details

Read lesson note on Chromosomes: The Basis Of Heredity (WAEC)

Chromosomes: The Basis Of Heredity

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Question 38 Report

The functional unit of a mammalian kidney is the

urethra

malphigian capsule

glomerulus

nephron

ureter

Answer Details

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

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

Read lesson note on Spirogyra And Rhizopus (WAEC)

Read lesson note on Natural Habitats (JAMB)

Tissues And Supporting Systems:

Excretory Systems And Mechanisms Types Of Excretor

Spirogyra And Rhizopus

Natural Habitats

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Question 39 Report

An instrument used in measuring the speed of wind is

a barometer

a wind gauge

a wind vane

an anemometer

a hydrometer

Answer Details

Read lesson note on Microorganisms: Man And Health (WAEC)

Read lesson note on Simple Measurement Of Ecological Factors (WAEC)

Microorganisms: Man And Health

Simple Measurement Of Ecological Factors

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Question 40 Report

One common feature of the fungi, algae, mosses and ferns is that they

are photosynthetic

show alternation of generation

reproduce by means of conjugation

can survive dry conditions

have no seeds

Answer Details

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Question 41 Report

What is the function of the contractile vacuole in paramecium?

Produces enzymes

Gets rid of excreta

Stores and digest food

Gets rid of excess water

Controls movement

Answer Details

Read lesson note on Amoeba, Paramecium, And Euglena (WAEC)

Amoeba, Paramecium, And Euglena

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Question 42 Report

What is the part marked X in the figure above called?

Pulmonary artery

Pulmonary vein

Vena cava

Main aorta

Hepatic artery

Answer Details

Read lesson note on Integrated Water Resources Management (WAEC)

Read lesson note on Cell Structure (WAEC)

Read lesson note on Respiratory System (WAEC)

Integrated Water Resources Management

Cell Structure

Respiratory System

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Question 43 Report

All the following are digestive enzymes except

bile

lipase

maltase

pepsin

ptyalin

Answer Details

Read lesson note on Alimentary System (WAEC)

Alimentary System

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Question 44 Report

The kind of teeth used for tearing food materials is the

fang

canine

premolar

carnassial

incisor

Answer Details

Read lesson note on Nutrition (JAMB)

Nutrition

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Question 45 Report

What would happen if solution Y is more concentrated than solution X in the figure above?

the level of X would rise, Y would fall

the level of X would rise Y would rise

The level of X and Y would stay the same

The level of Y would rise and X would fall

The levels of Y would fall and X would fall

Answer Details

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Question 46 Report

The correct figured sequence for the following labeled parts (stigma, ovary wall, embryo sac, integument and micropyle) is

12453

24135

21435

14325

31425

Answer Details

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Question 47 Report

Soil is said to be fertile if

It is black

it can supply usable nutrients to plants

the oxygen content is very high

artificial manure is added to it

it is not waterlogged

Answer Details

Read lesson note on Soil (JAMB)

Read lesson note on Soil (WAEC)

Soil

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Question 48 Report

Which of the following animals is cold blooded

Cat

Lizard

Whale

Bird

Horse

Answer Details

Read lesson note on Evidence Of Evolution (JAMB)

Evidence Of Evolution

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Question 49 Report

Spirogyra reproduces vegetatively by

spore production

fragmentation

multiple fission

budding

binary fission

Answer Details

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

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

Forms In Which Living Cells Exist

Reproduction (Physical Changes In Males And Females)

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