JAMB UTME - Biology - 1983 | Green Bridge CBT

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 Richtige Antwort

55.6

75.0

25.0

35.7

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Frage 13 Bericht

Urea is produced in the

Liver Richtige Antwort

Bladder

Spleen

Kidneys

Gall bladder

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Lies die Unterrichtsnotiz zu Excretory Systems And Mechanisms; Types Of Excretory Systems (WAEC)

Excretory Systems And Mechanisms; Types Of Excretory Systems

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Frage 14 Bericht

In rhizopus carbohydrate is stored in the form of

Glucose

Paramylon

Glycogen Richtige Antwort

Starch

Oil

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Frage 15 Bericht

One disease NOT caused directly by bacteria is

malaria Richtige Antwort

tuberculosis

pneumonia

tetanus

cholera

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Lies die Unterrichtsnotiz zu 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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Frage 16 Bericht

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

Multipe fruit

Simple fruit

Aggregrate fruit Richtige Antwort

Dehiscent fruit

Indehiscent fruit

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Frage 17 Bericht

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 Richtige Antwort

21345

53412

54321

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Lies die Unterrichtsnotiz zu Soil (WAEC)

Soil

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Frage 18 Bericht

In a dicot leaf, guard cells differ from other epidermal cells because they

have no definite shape

lack nuclei

are smaller

contain chloroplast Richtige Antwort

lack vacuole

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Lies die Unterrichtsnotiz zu Morphology Of Monocotyledonous And Dicotyledonous Plants (WAEC)

Lies die Unterrichtsnotiz zu Natural Habitats (JAMB)

Morphology Of Monocotyledonous And Dicotyledonous Plants

Natural Habitats

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Frage 19 Bericht

A centipede differs from a millipede by its

colour

numerous abdominal segment

paired legs on each abdominal segment

poison claws Richtige Antwort

cylindrical body

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Lies die Unterrichtsnotiz zu Animal Nutrition (WAEC)

Animal Nutrition

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Frage 20 Bericht

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 Richtige Antwort

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Lies die Unterrichtsnotiz zu Food Webs And Trophic Levels (WAEC)

Food Webs And Trophic Levels

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Frage 21 Bericht

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

Pre-anal pads

Eardrum

Gular fold

Nasal scale

Nuchal crest Richtige Antwort

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Frage 22 Bericht

In the onion bulb, food is stored in the

stem

lateral buds

cotyledons

outer scale leave

leaf base Richtige Antwort

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Lies die Unterrichtsnotiz zu Nutrition (JAMB)

Lies die Unterrichtsnotiz zu Morphology Of Monocotyledonous And Dicotyledonous Plants (WAEC)

Nutrition

Morphology Of Monocotyledonous And Dicotyledonous Plants

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Frage 23 Bericht

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

Richtige Antwort

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Frage 24 Bericht

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 Richtige Antwort

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Lies die Unterrichtsnotiz zu Classification (WAEC)

Lies die Unterrichtsnotiz zu Blood Transfusion (WAEC)

Lies die Unterrichtsnotiz zu Support And Movement (JAMB)

Classification

Blood Transfusion

Support And Movement

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Frage 25 Bericht

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

Thermometer

secchi disc Richtige Antwort

rain guage

Hydrometer

Wind vane

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Lies die Unterrichtsnotiz zu Transport System (WAEC)

Transport System

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Frage 26 Bericht

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 Richtige Antwort

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Lies die Unterrichtsnotiz zu Evolution (Theories and Evidence) (WAEC)

Evolution (Theories and Evidence)

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Frage 27 Bericht

An organism having one pair of identical genes is

a heterozygote

a hybride

an allelomorph

a homozygote Richtige Antwort

a diploid

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Lies die Unterrichtsnotiz zu Behavioural Adaptations In Social Animals (WAEC)

Lies die Unterrichtsnotiz zu Heredity (JAMB)

Behavioural Adaptations In Social Animals

Heredity

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Frage 28 Bericht

The path taken by glucose from the ileum to the heart is

Ileum →hepatic portal vein →hepatic artery → vena cava → heart

Ileum → hepatic portal artery →hepatic artery → vena cava → heart

Ileum → hepatic portal vein → vena cava → heart

Ileum → hepatic vein → vena cava → heart

Ileum → hepatic portal vein → hepatic vein → vena cava → heart Richtige Antwort

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Frage 29 Bericht

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

taxism

tropism

hyptotropic movement

nastic movement Richtige Antwort

phototropism

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Frage 30 Bericht

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

medulla oblongata

olfactory lobe

cerebellum Richtige Antwort

cerebrum

frontal lobe

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Lies die Unterrichtsnotiz zu Nervous Coordination (WAEC)

Nervous Coordination

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Frage 31 Bericht

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

Richtige Antwort

die due to excess water

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Lies die Unterrichtsnotiz zu Cell Structure (WAEC)

Lies die Unterrichtsnotiz zu The Cell And Its Environment: Physical And Biophysical Processes (WAEC)

Cell Structure

The Cell And Its Environment: Physical And Biophysical Processes

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Frage 32 Bericht

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

keep the composition of the plasma constant

regulate osmotic processes Richtige Antwort

control the volume of blood entering the kidneys

decrease the osmotic pressure of the blood

increase the osmotic pressure of blood

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Frage 33 Bericht

Herbs differ from shrubs because they

do not produce fruit

are useful to herbalist

do not become woody Richtige Antwort

are only annual

are only perennials

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Lies die Unterrichtsnotiz zu Forms In Which Living Cells Exist (WAEC)

Forms In Which Living Cells Exist

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Frage 34 Bericht

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 Richtige Antwort

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

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Frage 35 Bericht

‘Jointed skeleton’ is absent in the

Cockroach

Spider

Millipede

Snail Richtige Antwort

Dragon fly

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Frage 36 Bericht

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

xylem fibres Richtige Antwort

medullary rays

sieve tubes

phloem fibres

phloem parenchyma

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Lies die Unterrichtsnotiz zu Transport System (WAEC)

Lies die Unterrichtsnotiz zu Classification (WAEC)

Transport System

Classification

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Frage 37 Bericht

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

a protein

a cabohydrate Richtige Antwort

a fat

a fatty acid and glycerol

an amino acid

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Lies die Unterrichtsnotiz zu Modes Of Nutrition (WAEC)

Lies die Unterrichtsnotiz zu DNA Structure And Replication, RNA Transcription (WAEC)

Modes Of Nutrition

DNA Structure And Replication, RNA Transcription

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Frage 38 Bericht

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

Position of 7

Richtige Antwort

Its circular nature

Number of 5

Presence of 3

Width of 2

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Frage 39 Bericht

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

Transmission of vibrations Richtige Antwort

Regulation of pressure

Support of the inner ear

Maintenance of balance during motion

Secretion of oil

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Lies die Unterrichtsnotiz zu Cell Structure (WAEC)

Cell Structure

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Frage 40 Bericht

The tuber cassava is NOT a stem tuber because it

Is distended with food reserve

Has an aerial shoot portion

Has other structure that could be called root

Lacks axillary buds Richtige Antwort

Has a bark over its stored food

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Frage 41 Bericht

Which of the following diseases could be exclusively associated with river basin?

Malaria

Syphilis

Onchocerciasis Richtige Antwort

Cholera

Poliomyelitis

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Lies die Unterrichtsnotiz zu Humans And Environment (JAMB)

Lies die Unterrichtsnotiz zu Plant Nutrition (WAEC)

Humans And Environment

Plant Nutrition

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Frage 42 Bericht

Which of the following will not allow osmosis to take place

pig's bladder

cellophane

parchment paper

transparent polythene Richtige Antwort

cow's bladder

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Lies die Unterrichtsnotiz zu Blood Transfusion (WAEC)

Lies die Unterrichtsnotiz zu The Cell And Its Environment: Physical And Biophysical Processes (WAEC)

Blood Transfusion

The Cell And Its Environment: Physical And Biophysical Processes

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Frage 43 Bericht

which of these worms is beneficial to man?

Hookworm

Tapeworm

Roundworm

Earthworm Richtige Antwort

Guinea worm

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Lies die Unterrichtsnotiz zu Plant Nutrition (WAEC)

Plant Nutrition

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Frage 44 Bericht

Root hairs are developed from the

root apex

epidermis of root Richtige Antwort

vascular bundles

endodermis

pericycle

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Lies die Unterrichtsnotiz zu Structural Adaptation For Survival (WAEC)

Lies die Unterrichtsnotiz zu Tissues And Supporting Systems: (WAEC)

Lies die Unterrichtsnotiz zu Cell Structure (WAEC)

Structural Adaptation For Survival

Tissues And Supporting Systems:

Cell Structure

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Frage 45 Bericht

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

magnesium and iron Richtige Antwort

Calcium and potassium

Calcium and sulphur

Potasium and sulphur

Phosphorus and potassium

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Lies die Unterrichtsnotiz zu Population Studies By Sampling (WAEC)

Lies die Unterrichtsnotiz zu Nucleic Acids (WAEC)

Population Studies By Sampling

Nucleic Acids

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Frage 46 Bericht

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

Richtige Antwort

Similar organism eating the same food

Different organisms in the same habitat

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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.

Lies die Unterrichtsnotiz zu Co-ordination And Control (JAMB)

Co-ordination And Control

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Frage 47 Bericht

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 Richtige Antwort

absence of auxins in the coleoptile

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Lies die Unterrichtsnotiz zu Protein Synthesis (WAEC)