JAMB UTME - Biology - 1983 | Green Bridge CBT

Question 1 Rapport

Root hairs are developed from the

root apex

epidermis of root

vascular bundles

endodermis

pericycle

Détails de la réponse

Read lesson note on Structural Adaptation For Obtaining Food (WAEC)

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

Read lesson note on Cell Structure (WAEC)

Structural Adaptation For Obtaining Food

Tissues And Supporting Systems:

Cell Structure

Voir la réponse

Question 2 Rapport

Which of the following diseases is NOT caused by a virus?

Rinderpest

Maize rust

Newcastle diseases

Swine fever

Cassava mosaic diseases

Détails de la réponse

Read lesson note on Animal Nutrition (WAEC)

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

Read lesson note on Microorganisms Around Us (WAEC)

Animal Nutrition

Resources To Be Conserved: Soil, Water, Wildlife

Microorganisms Around Us

Voir la réponse

Question 3 Rapport

In a positive phototropic response of a coleoptile, the region of greatest curvature is brought about by the

movement of auxins away from the region of curvature

even distribution of auxins in all parts of the coleoptile

inhibition of growth by auxins in the region f smaller curvature

concentration of auxins in the region of curvature

absence of auxins in the coleoptile

Détails de la réponse

Read lesson note on Protein Synthesis (WAEC)

Read lesson note on Nucleic Acids (WAEC)

Protein Synthesis

Nucleic Acids

Voir la réponse

Question 4 Rapport

Which of the following instruments is used for determining turbidity of water?

Thermometer

secchi disc

rain guage

Hydrometer

Wind vane

Détails de la réponse

Read lesson note on Transport System (WAEC)

Transport System

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Question 5 Rapport

Starting from the skull end the vertebrate are arranged in the following order

axis, atlas, cervical, thoracic and lumber

atls, cervical, axis, thoracic and lumber

atlas, axis, thoracic, cervical and lumber

atlas, axis, cervical, thoracic and lumber

atlas, thoracic, cervical, axis and lumber

Détails de la réponse

Read lesson note on Organization Of Life (WAEC)

Organization Of Life

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Question 6 Rapport

The function of the ossicles (malleus, incus and stapes) in the mammalian ear is

Transmission of vibrations

Regulation of pressure

Support of the inner ear

Maintenance of balance during motion

Secretion of oil

Détails de la réponse

Read lesson note on Cell Structure (WAEC)

Cell Structure

Voir la réponse

Question 7 Rapport

Which of the following features can be used to identify the figure above?

Position of 7

Its circular nature

Number of 5

Presence of 3

Width of 2

Détails de la réponse

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Question 8 Rapport

Which of the labelled part in the figure above will develop into new bulb?

Détails de la réponse

Voir la réponse

Question 9 Rapport

Which of the following statements is NOT true of insectivorous plants?

They obtain part of their food by trapping and feeding on insects

They attract insects simply because of pollination

Thay can grow in soils poor in nitrogenous salts

They can supplement their nitrgen supply by feeding on insects

Example include butterworts, sundews and pitcher plants

Détails de la réponse

Read lesson note on Plant Nutrition (WAEC)

Plant Nutrition

Voir la réponse

Question 10 Rapport

Which of the following statements on the mammalian circulatory system is NOT true?

Blood in the pulimonary artery is richer in oxygen content than blood in the pulmonary vein

The blood in the hepatic portal vein is the richest in food substance

Blood flow is controlled by valves in the veins

Arteries are generally thicker and larger than veins

Fibrin helps in the formation of blood clot

Détails de la réponse

Voir la réponse

Question 11 Rapport

Which of the following will not allow osmosis to take place

pig's bladder

cellophane

parchment paper

transparent polythene

cow's bladder

Détails de la réponse

Read lesson note on Blood Transfusion (WAEC)

Read lesson note on The Cell And Its Environment: Physical And Biophysical Processes (WAEC)

Blood Transfusion

The Cell And Its Environment: Physical And Biophysical Processes

Voir la réponse

Question 12 Rapport

Which of the following statements is NOT true of mammalian erythrocytes?

They have haemoglobin

they appear yellow when looked at singly

They are disc shaped

The cell are more numerous than leucocytes

They have nuclei at maturity

Détails de la réponse

Read lesson note on Classification (WAEC)

Read lesson note on Blood Transfusion (WAEC)

Read lesson note on Support And Movement (JAMB)

Classification

Blood Transfusion

Support And Movement

Voir la réponse

Question 13 Rapport

Banana, plantain and pineapple can be grouped together because they

produce small seeds

are multiple fruit

produce suckers

have runners

have bulbils

Détails de la réponse

Read lesson note on Crime Detection (WAEC)

Crime Detection

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Question 14 Rapport

In rhizopus carbohydrate is stored in the form of

Glucose

Paramylon

Glycogen

Starch

Oil

Détails de la réponse

Voir la réponse

Question 15 Rapport

When spirogyra cell is immersed in a salt solution more concentrated than its cell sap, it

Remains unchanged

Takes up water an burst

Absorbs a little water

Loses water and shrivels

Becomes turgid

Détails de la réponse

Read lesson note on Nucleic Acids (WAEC)

Read lesson note on Cell Structure (WAEC)

Nucleic Acids

Cell Structure

Voir la réponse

Question 16 Rapport

A centipede differs from a millipede by its

colour

numerous abdominal segment

paired legs on each abdominal segment

poison claws

cylindrical body

Détails de la réponse

Read lesson note on Animal Nutrition (WAEC)

Animal Nutrition

Voir la réponse

Question 17 Rapport

Groundnut is not really a 'nut' in the biological sense because

it is harvested from inside the ground

pericarp is not hard and tough

the fruit is not as hard as coconut

the fruit is not succulent

it is an achene

Détails de la réponse

Read lesson note on Classification (WAEC)

Read lesson note on Physiological Variations (WAEC)

Classification

Physiological Variations

Voir la réponse

Question 18 Rapport

Plants which can survive in places where the water supply is limited are

bryophytes

mesophytes

xerophytes

hydrophytes

pteridophytes

Détails de la réponse

Read lesson note on Blood Transfusion (WAEC)

Read lesson note on Soil (WAEC)

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

Blood Transfusion

Soil

Co-ordination And Control

Voir la réponse

Question 19 Rapport

Which of the following statements about the dentition of man is INCORRECT ? man has

More molars than incisors

No diastema

The same number of teeth on upper and lower jaw

A total of thirty-two teeth

A total of six molars

Détails de la réponse

Read lesson note on Modes Of Nutrition (WAEC)

Read lesson note on Growth (JAMB)

Modes Of Nutrition

Growth

Voir la réponse

Question 20 Rapport

Which of the following structure is NOT found in the female agama lizard?

Pre-anal pads

Eardrum

Gular fold

Nasal scale

Nuchal crest

Détails de la réponse

Voir la réponse

Question 21 Rapport

Urea is produced in the

Liver

Bladder

Spleen

Kidneys

Gall bladder

Détails de la réponse

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

Excretory Systems And Mechanisms Types Of Excretor

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Question 22 Rapport

Which of the following represents the evolutionary sequence in these plants? 1. Flowering plants 2. Ferns 3. Mosses 4. Algae 5. Conifers

2 → 1 → 4 → 3 → 5

5 → 4 → 3 → 2 → 1

2 → 4 → 5 → 1 →3

3 → 2 → 4 → 5 → 1

4 → 3 → 2 → 5 → 1

Détails de la réponse

Read lesson note on Evolution (Theories and Evidence) (WAEC)

Evolution (Theories and Evidence)

Voir la réponse

Question 23 Rapport

What is the genetic ratio of the F2 generation if members of F generation are allowed to self-pollinate?

1 tall : 3 short

3 tall : 1 short

1 tall : 1 short

4 short : 0 tall

4 tall : 0 short

Détails de la réponse

Read lesson note on Genetic Terminologies (WAEC)

Genetic Terminologies

Voir la réponse

Question 24 Rapport

If an isolated living cell is left in distilled water for two hours, it is likely to

lose some of its water to the surrounding water

lose all of its water to the surrounding water

reproduce by binary fission

become more turgid

die due to excess water

Détails de la réponse

Read lesson note on Cell Structure (WAEC)

Read lesson note on The Cell And Its Environment: Physical And Biophysical Processes (WAEC)

Cell Structure

The Cell And Its Environment: Physical And Biophysical Processes

Voir la réponse

Question 25 Rapport

‘Jointed skeleton’ is absent in the

Cockroach

Spider

Millipede

Snail

Dragon fly

Détails de la réponse

Voir la réponse

Question 26 Rapport

In the onion bulb, food is stored in the

stem

lateral buds

cotyledons

outer scale leave

leaf base

Détails de la réponse

Read lesson note on Nutrition (JAMB)

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

Nutrition

Morphology Of Monocotyledonous And Dicotyledonous Plants

Voir la réponse

Question 27 Rapport

which of these worms is beneficial to man?

Hookworm

Tapeworm

Roundworm

Earthworm

Guinea worm

Détails de la réponse

Read lesson note on Plant Nutrition (WAEC)

Plant Nutrition

Voir la réponse

Question 28 Rapport

Which sequence represents the correct order of organisms un a food chain? 1. Toad 2. Mucuna 3. Grasshopper 4. Snake 5. Hawk

5 → 4 → 1 → 3 → 2

1 → 2 → 3 → 4 → 5

2 → 1 → 3 → 4 → 5

2 → 3 →1 → 5 →4

2 → 3 → 1 → 4 → 5

Détails de la réponse

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

Food Webs And Trophic Levels

Voir la réponse

Question 29 Rapport

The kidneys of all vertebrates act as osmoregulators. This means that they

keep the composition of the plasma constant

regulate osmotic processes

control the volume of blood entering the kidneys

decrease the osmotic pressure of the blood

increase the osmotic pressure of blood

Détails de la réponse

Voir la réponse

Question 30 Rapport

Which of the following elements are necessary for the formation of chlorophyll in a plant?

magnesium and iron

Calcium and potassium

Calcium and sulphur

Potasium and sulphur

Phosphorus and potassium

Détails de la réponse

Read lesson note on Population Studies By Sampling (WAEC)

Read lesson note on Nucleic Acids (WAEC)

Population Studies By Sampling

Nucleic Acids

Voir la réponse

Question 31 Rapport

28 g soil sample was heated to a constant weight of 24 g. When further heated to red hot and cooled, it weighed 18 g. What is the percentage of humus in the soil?

22.2

55.6

75.0

25.0

35.7

Détails de la réponse

Voir la réponse

Question 32 Rapport

In woody plants, grass and water vapour are transported across the stems by the

xylem fibres

medullary rays

sieve tubes

phloem fibres

phloem parenchyma

Détails de la réponse

Read lesson note on Transport System (WAEC)

Read lesson note on Classification (WAEC)

Transport System

Classification

Voir la réponse

Question 33 Rapport

Which of the following is NOT a characteristic of monocot plants?

Occurrence of secondary thickening

Parallel venation

Scattered vascular bundles

Floral parts arranged in threes

Perianth is usually insignificant

Détails de la réponse

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

Morphology Of Monocotyledonous And Dicotyledonous Plants

Voir la réponse

Question 34 Rapport

If an organic compound has its hydrogen: oxygen ratio as 2:1, it is likely to be

a protein

a cabohydrate

a fat

a fatty acid and glycerol

an amino acid

Détails de la réponse

Read lesson note on Modes Of Nutrition (WAEC)

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

Modes Of Nutrition

DNA Structure And Replication, RNA Transcription

Voir la réponse

Question 35 Rapport

Herbs differ from shrubs because they

do not produce fruit

are useful to herbalist

do not become woody

are only annual

are only perennials

Détails de la réponse

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

Forms In Which Living Cells Exist

Voir la réponse

Question 36 Rapport

The part of the mammalian brain responsible for maintaining balance is the

medulla oblongata

olfactory lobe

cerebellum

cerebrum

frontal lobe

Détails de la réponse

Read lesson note on Nervous Coordination (WAEC)

Nervous Coordination

Voir la réponse

Question 37 Rapport

An organism having one pair of identical genes is

a heterozygote

a hybride

an allelomorph

a homozygote

a diploid

Détails de la réponse

Read lesson note on Behavioural Adaptations In Social Animals (WAEC)

Read lesson note on Heredity (JAMB)

Behavioural Adaptations In Social Animals

Heredity

Voir la réponse

Question 38 Rapport

Which of the following statements about the rate of transpiration is INCORRECT? It is

Dependent on temperature

Affected by changes in light intensity

Unaffected by humidity

Dependent on air movement

Affected by availability of water

Détails de la réponse

Read lesson note on Transport System (WAEC)

Read lesson note on Relevance Of Biology To Agriculture (WAEC)

Transport System

Relevance Of Biology To Agriculture

Voir la réponse

Question 39 Rapport

In what order do the following structure develop during the metamorphosis of the toad? 1. External gills 2. Internal gills 3. Forelimbs 4.Hindlimbs 5. Mouth

12345

15243

21345

53412

54321

Détails de la réponse

Read lesson note on Soil (WAEC)

Soil

Voir la réponse

Question 40 Rapport

What type of fruit is formed from a single flower having several carpels?

Multipe fruit

Simple fruit

Aggregrate fruit

Dehiscent fruit

Indehiscent fruit

Détails de la réponse

Voir la réponse

Question 41 Rapport

A population is defined as the collection of

Similar organism that are found in the same habitat

Similar organisms that breed in the same habitat

Similar organisms that interbreed freely in the same habitat

Similar organism eating the same food

Different organisms in the same habitat

Détails de la réponse

A population is a summation of all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding.

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

Co-ordination And Control

Voir la réponse

Question 42 Rapport

The movement of plant in response to external stimulus of no particular direction is

taxism

tropism

hyptotropic movement

nastic movement

phototropism

Détails de la réponse

Voir la réponse