JAMB UTME - Biology - 1980 | Green Bridge CBT

Question 1 Rapport

In anaerobic respiration, glucose is converted to one of the following

Carbon dioxide and water

Carbon dioxide only

Carbon dioxide and alcohol Bonne réponse

Alcohol and water

water and acetic acid

Détails de la réponse

Voir la réponse

Question 2 Rapport

Which one of the following animals is NEVER a secondary host of tapeworms?

cow

Fish

Pig

Man Bonne réponse

Dog

Détails de la réponse

Voir la réponse

Question 3 Rapport

Which of the following food substances is digested in the stomach?

Carbohydrate

Fats and oil

Fats and proteins

Proteins Bonne réponse

Carbohydrates and fats

Détails de la réponse

Lisez la note de cours sur Alimentary System (WAEC)

Alimentary System

Voir la réponse

Question 4 Rapport

Which of the following spreads malaria in Nigeria?

Anopheles mosquito Bonne réponse

Culex mosquito

Aedes mosquito

Tsetse fly

House fly

Détails de la réponse

Lisez la note de cours sur Microorganisms Around Us (WAEC)

Microorganisms Around Us

Voir la réponse

Question 5 Rapport

Below are some group of diseases. Which group of diseases is caused by bacteria?

Tuberculosis, smallpox

Gonorrhoea, measles

Tuberculosis, polio

Sleeping sickness, measles

Syphilis, gonorrhoea Bonne réponse

Détails de la réponse

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

Lisez la note de cours sur Microorganisms Around Us (WAEC)

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

Microorganisms Around Us

Voir la réponse

Question 6 Rapport

Leguminous plants, e.g Mucana, are usually planted in cultivated farmlands because they

enrich the soil with phoshates

provide animals with food

enrich the soil with organic nitrogen Bonne réponse

protect the soil from being over-heated

protect the micro organisms in the soil

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 7 Rapport

if three 30 cm lengths of glass tubes are tightly packed with clay, sand and loamy soils respectively and then stood in a beaker of water for one week, the level of water will be

lowest in the tube with clay

the same in all tubes

lowest in the tube with loamy soil

highest in the tube with sandy soil

lowest in the tube with sandy soil Bonne réponse

Détails de la réponse

Lisez la note de cours sur Transport System (WAEC)

Lisez la note de cours sur Plant Nutrition (WAEC)

Lisez la note de cours sur Morphological Variations In The Physical Appearance Of Individuals (WAEC)

Transport System

Plant Nutrition

Morphological Variations In The Physical Appearance Of Individuals

Voir la réponse

Question 8 Rapport

The following are connected with the movement of a reflex action (1) Central nervous (2) Muscles (3) Skin (4) Sensory nerve (5) Motor nerve. Which of the following sequences indicates a correct path?

1-2-3-4-5

2-1-4-5-3

3-4-1-2-5

4-1-5-2-3

3-4-1-5-2 Bonne réponse

Détails de la réponse

Lisez la note de cours sur Simple Measurement Of Ecological Factors (WAEC)

Lisez la note de cours sur Nervous Coordination (WAEC)

Lisez la note de cours sur Natural Habitats (JAMB)

Simple Measurement Of Ecological Factors

Nervous Coordination

Natural Habitats

Voir la réponse

Question 9 Rapport

The testa

is normally absent

is included in the part numbered (1) Bonne réponse

is fused in the part numbered (3)

is the part numbered (1)

surrounds the part numbered (4) and (5)

Détails de la réponse

Lisez la note de cours sur Nutrition (JAMB)

Lisez la note de cours sur Cell Structure (WAEC)

Nutrition

Cell Structure

Voir la réponse

Question 10 Rapport

Human beings require vitamins in their diet because vitamins

contain carbohydrates and fats

prevent kwashiorkor

stimulate the alimentary canal

digest proteins in the body

influence many important chemical processes in the body Bonne réponse

Détails de la réponse

Lisez la note de cours sur Nutrition (JAMB)

Nutrition

Voir la réponse

Question 11 Rapport

A true fruit is formed from

a fertilized ovary and other floral parts

a fertilized ovary Bonne réponse

a fertilized ovary and calyx

a fertilized ovary and fleshy receptacle

an unfertilized ovary and other floral part

Détails de la réponse

Lisez la note de cours sur Regulation Of Internal Environment (WAEC)

Regulation Of Internal Environment

Voir la réponse

Question 12 Rapport

Which of the following organs produces bile?

Gall bladder

Pancreas

Spleen

Liver Bonne réponse

Stomach

Détails de la réponse

Lisez la note de cours sur Alimentary System (WAEC)

Alimentary System

Voir la réponse

Question 13 Rapport

Which one of the following parts of the mammalian body is most closely associated with the production of urine?

Malpighian capsule Bonne réponse

Urinary bladder

Ureter

Vas deferens

Urethra

Détails de la réponse

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

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

Excretory Systems And Mechanisms; Types Of Excretory Systems

Properties And Functions Of The Living Cell

Voir la réponse

Question 14 Rapport

For pollination and fruit formation, the essential part(s) of the flower should be the

corolla

ovary

pistil (gynoecium) Bonne réponse

ovules

receptacle

Détails de la réponse

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

Lisez la note de cours sur Reproduction (JAMB)

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

Lisez la note de cours sur Irritability As A Basic Characteristic Of Protoplasm (WAEC)

Properties And Functions Of The Living Cell

Reproduction

Internal Structure Of A Flowering Plant

Irritability As A Basic Characteristic Of Protoplasm

Voir la réponse

Question 15 Rapport

The vacuole of a plant cell is

a large empty space

smaller than that of animal cell

filled with air

an ordinary vacuum

surrounded by a membrane Bonne réponse

Détails de la réponse

Lisez la note de cours sur Cell Structure (WAEC)

Cell Structure

Voir la réponse

Question 16 Rapport

Biconcave lenses are used in the correction of an eye defect called?

myopia Bonne réponse

colour blindnes

old age

hypermetropia

weakening of ciliary muscles

Détails de la réponse

Lisez la note de cours sur Sense Organs (Nose, Tongue & Skin) (WAEC)

Sense Organs (Nose, Tongue & Skin)

Voir la réponse

Question 17 Rapport

The joint between the atlas and axis vertebrae allows for

rotatory movement only

up and down or nodding movements only

rotatory and nodding movements Bonne réponse

no movement at all

slight movement

Détails de la réponse

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

Co-ordination And Control

Voir la réponse

Question 18 Rapport

A fresh Kolanut weighing 1g was put into salt solution. After 3 hour, the kolanut weighed 1.2g. This simple experiment demonstration that

the salt solution is more concentrated that the cell sap of the kolanut

the cell sap of the kolanut is more concentrated than the salt solution Bonne réponse

the salt solution has the same concentration as the cell sap of the kolanut

kolanut cell can multiply in water

the kolanut lost some water molecules to the salt solution

Détails de la réponse

Lisez la note de cours sur The Cell And Its Environment: Physical And Biophysical Processes (WAEC)

The Cell And Its Environment: Physical And Biophysical Processes

Voir la réponse

Question 19 Rapport

A green plant growing in a compost pit is feeding

holozoically

parasitically

saprophytically

holophytically Bonne réponse

in none of the above ways

Détails de la réponse

Lisez la note de cours sur Modes Of Nutrition (WAEC)

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

Modes Of Nutrition

Co-ordination And Control

Voir la réponse

Question 20 Rapport

In animals, cilia, flagella, pseudopodia and chaetae, can be used for

reproduction

fighting

attachment to plants

locomotion Bonne réponse

locating sensation

Détails de la réponse

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

Lisez la note de cours sur Movement (WAEC)

Forms In Which Living Cells Exist

Movement

Voir la réponse

Question 21 Rapport

The filament of spirogyra were put into equal volumes of sugar solutions X and Y. After 5 minutes, filaments from solution X had their cells contents rounded up while those from Y were unaffected. The experiment shows that

solution X was stronger than Y Bonne réponse

solution Y was stronger than X

Spirogyra used up the sugar in solution X

solution X is good for stimulating sexual reproduction in Spirogyra

solution Y was less contaminated than X

Détails de la réponse

Lisez la note de cours sur Classification (WAEC)

Lisez la note de cours sur Cell Structure (WAEC)

Classification

Cell Structure

Voir la réponse

Question 22 Rapport

Milk can be pasteurized by

the addition of common salt

boiling for one hour

heating to 75^oc for 20 minutes Bonne réponse

the addition of vinegar

heating to 100^oc for 12 hours

Détails de la réponse

Milk can be pasteurized by heating it to a specific temperature for a certain amount of time to kill bacteria that can cause diseases such as tuberculosis, diphtheria, and typhoid fever. One of the most common methods of pasteurization is heating the milk to 75°C for 20 minutes, which effectively destroys most of the harmful bacteria while preserving the milk's taste and nutritional quality. Therefore, the correct option is "heating to 75°C for 20 minutes".

Lisez la note de cours sur Classification (WAEC)

Lisez la note de cours sur Support And Movement (JAMB)

Classification

Support And Movement

Voir la réponse

Question 23 Rapport

Which of the following hormones is produced during fright or when agitated?

Insulin

Adrenalin Bonne réponse

Thyroxine

Pituitrin

Progesterone

Détails de la réponse

Lisez la note de cours sur Hormonal Coordination (WAEC)

Hormonal Coordination

Voir la réponse

Question 24 Rapport

The tips of some rice seedlings were cut off while some were left intact. Both were covered with a container which had not only one small hole to allow light through. After twenty-four hours it was observed that

the cut tips was bent away from the light

the cut tips bent towards source of light

the intact tips bent away from the light

the intact tips bent towards the light Bonne réponse

both tips bent away from light

Détails de la réponse

Lisez la note de cours sur Excretory System (WAEC)

Lisez la note de cours sur Classification (WAEC)

Lisez la note de cours sur Protein Synthesis (WAEC)

Lisez la note de cours sur Reproduction (Courtship Behaviour In Animals) (WAEC)

Excretory System

Classification

Protein Synthesis

Reproduction (Courtship Behaviour In Animals)

Voir la réponse

Question 25 Rapport

Why is the part labelled 5 thicker than 6?

5 is the left ventricle and 6 the right ventricle

6 is the left ventricle and 5 the right ventricle

5 receives blood from the left auricle and 6 from the right

5 pumps blood round the body and 6 pumps blood into the lungs Bonne réponse

5 deals with oxygenated blood and 6 deals with deoxygenated blood

Détails de la réponse

Voir la réponse

Question 26 Rapport

Oxygen from the atmosphere reaches the mammalian blood stream through one of the path indicated below. Indicate the correct path, a = mouth, b = trachea, c = bronchiole, d = nostril, e = bronchus, f = alveoli

a → b → e → f → d

b → d → f → e → c

d → b → e → c → f Bonne réponse

b → a → f → e → c

f → e → c → d → c

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 Animal Nutrition (WAEC)

Lisez la note de cours sur Nucleic Acids (WAEC)

Lisez la note de cours sur Respiratory System (WAEC)

Movement Of Substances Into And Out Of Cells

Animal Nutrition

Nucleic Acids

Respiratory System

Voir la réponse

Question 27 Rapport

The center which controls respiratory activities the mammalian brain is the

cerebrum

olfactory lobe

pituitary organ

cerebellum

medulla Bonne réponse

Détails de la réponse

Lisez la note de cours sur Nervous Coordination (WAEC)

Nervous Coordination

Voir la réponse

Question 28 Rapport

The amount of water loss from a leaf can be detected using

lime-water

red litmus paper

blue litmus paper

blue cobalt chloride paper Bonne réponse

pink cobalt chloride paper

Détails de la réponse

Lisez la note de cours sur Blood Transfusion (WAEC)

Lisez la note de cours sur Nucleic Acids (WAEC)

Blood Transfusion

Nucleic Acids

Voir la réponse

Question 29 Rapport

In the figure above the structure which prevents friction between the bones is

2 Bonne réponse

Détails de la réponse

Voir la réponse

Question 30 Rapport

One of the following statement is NOT true of spirogyra

it is a simple multicellular plant

during conjugation, its gametes, which are structurally and physiologically similar, fuses to form a zygote Bonne réponse

it possesses spiral chloroplast which enables the plant to photosynthesize

its cells are protected externally by layer of mucilage

there are pyrenoids along the chloroplast

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 31 Rapport

The organ through which food and oxygen are supplied to the human embryo and which also prevents harmful materials from reaching the embryo is the

amnion

uterus

placenta Bonne réponse

umbilical cord

fallopian tube

Détails de la réponse

Lisez la note de cours sur Adaptive Colouration (WAEC)

Adaptive Colouration

Voir la réponse

Question 32 Rapport

If the bark and phloem tissue of a woody shoot are peeled off by ringing, the whole plant will die eventually die because?

water does not reach the leaves

water and salts remained below the ring portion

there is a withdrawal of water from the root by soil

manufactured food does not reach the roots Bonne réponse

the roots store too much water

Détails de la réponse

Voir la réponse

Question 33 Rapport

The conversion of excess amino acids into urea occurs in the

Kidney

pancreas

villi

liver Bonne réponse

spleen

Détails de la réponse

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

Excretory Systems And Mechanisms; Types Of Excretory Systems

Voir la réponse

Question 34 Rapport

The lime water in container B turned milky because

carbon dioxide was produced by plant Bonne réponse

during respiration carbon dioxide entered C

oxygen reacts with lime water to produce milkiness

soda lime did not remove carbon dioxide from air

the delivery tubes were not well connected

Détails de la réponse

Voir la réponse

Question 35 Rapport

The part of the cell solely responsible for respiration is the

nucleus

nucleolus

mitochondria Bonne réponse

golgi apparatus

endoplasmic reticulum

Détails de la réponse

Lisez la note de cours sur Cellular Respiration (WAEC)

Lisez la note de cours sur Transport (JAMB)

Lisez la note de cours sur Irritability As A Basic Characteristic Of Protoplasm (WAEC)

Cellular Respiration

Transport

Irritability As A Basic Characteristic Of Protoplasm

Voir la réponse

Question 36 Rapport

During excretion of urea there is also a corresponding re-absorption of water into the blood. This re-absorption takes place in the

uriniferous tubules Bonne réponse

Bowman's capsule

glomerulus

malpighian capsule

renal artery

Détails de la réponse

Lisez la note de cours sur Excretory System (WAEC)

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

Excretory System

Excretory Systems And Mechanisms; Types Of Excretory Systems

Voir la réponse

Question 37 Rapport

The lime water in container C turned milky because

Carbon dioxide was produced by plant during respiration Bonne réponse

Carbon dioxide entered through the filter pump

Oxygen reacts with lime water to produce milkiness

Soda lime did not remove carbon dioxide from the air

The delivery tubes were not well connected

Détails de la réponse

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

Lisez la note de cours sur Nervous Coordination (WAEC)

Application Of The Principles Of Heredity

Nervous Coordination

Voir la réponse

Question 38 Rapport

which part of the human brain is concerned with reflexes controlling the rate of heart beat and breathing?

Medulla Bonne réponse

Cerebrum

Cerebellum

Pineal body

Olfactory lobe

Détails de la réponse

Lisez la note de cours sur Nervous Coordination (WAEC)

Nervous Coordination

Voir la réponse

Question 39 Rapport

A potometer is used to determine the rate at which a shoot

respires

sucks air bubbles

loses weight

absorbs water

transpires Bonne réponse

Détails de la réponse

Lisez la note de cours sur Respiration (JAMB)

Lisez la note de cours sur Cellular Respiration (WAEC)

Respiration

Cellular Respiration

Voir la réponse

Question 40 Rapport

If a baby is a female, her mother's ovum must have been fertilized by a sperm carry the chromosome

X Bonne réponse

Détails de la réponse

Lisez la note de cours sur Genetic Terminologies (WAEC)

Genetic Terminologies

Voir la réponse

Question 41 Rapport

During thunderstorms the energy of lightning discharge causes

oxygen and nitrogen to combine Bonne réponse

more carbon dioxide to be formed

nitrites to be converted to nitrates

nitrates to be converted to nitrogen

death

Détails de la réponse

Lisez la note de cours sur Nitrogen Cycle (WAEC)

Nitrogen Cycle

Voir la réponse

Question 42 Rapport

An organism X lives entirely on the waste products in another organism Y. In this association X is a

symbiont

commensal Bonne réponse

saprophyte

parasite

epiphyte

Détails de la réponse

Voir la réponse

Question 43 Rapport

Water is required for seed germination to take place because it

activates the enzymes Bonne réponse

softens the testa

liberates energy for growth

permits radicle growth

allow oxygen to diffuse into the seed

Détails de la réponse

Lisez la note de cours sur Modes Of Nutrition (WAEC)

Lisez la note de cours sur Nutrient Cycling In Nature (WAEC)

Lisez la note de cours sur Integrated Water Resources Management (WAEC)

Modes Of Nutrition

Nutrient Cycling In Nature

Integrated Water Resources Management

Voir la réponse

Question 44 Rapport

Reserved food materials is

stored in the parts numbered 2 and 3 Bonne réponse

stored in the part numbered 3 only

stored in the part numbered 4 and 5

not concentrated in any particular part

found in all except 1

Détails de la réponse

Voir la réponse

Question 45 Rapport

In Mucor or Rhizopus carbohydrate is absorb in the form of

starch

sucrose

glucose Bonne réponse

glycogen

arabinose

Détails de la réponse

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

Lisez la note de cours sur Nucleic Acids (WAEC)

Structural Adaptation For Survival

Nucleic Acids

Voir la réponse

Question 46 Rapport

A few grams of dried soil were first heated until red hot and then further heated until no more smoke was released. This experiment was to determine

amount of water in soil

percentage of water in soil

presence of humus in soil Bonne réponse

resistance of laterities to heat

release of smoke from the soil

Détails de la réponse

Lisez la note de cours sur Soil (JAMB)

Lisez la note de cours sur Humans And Environment (JAMB)

Soil

Humans And Environment

Voir la réponse

Question 47 Rapport

A student trying to find out the order in which organisms appear on a cleared plot is studying one of the following

Ecosystem

Food chain

Food web

Succession Bonne réponse

Community

Détails de la réponse

Lisez la note de cours sur Ecosystem (WAEC)

Ecosystem

Voir la réponse

Question 48 Rapport

Some of the features of an animal are scales, teeth, nares and backbone. The animal is likely to be a

Toad

Bird

Lizard Bonne réponse

Rat

Bat

Détails de la réponse

Lisez la note de cours sur Classification (WAEC)

Lisez la note de cours sur Physiological Variations (WAEC)

Classification

Physiological Variations

Voir la réponse

Question 49 Rapport

A mosquito which produces eggs which float, and whose larvae lie horizontal to the water surface, also rests at the angle on a vertical surface. This type of mosquito is

Aedes

Anopheles Bonne réponse

Culex

Tiger mosquito

none of the above

Détails de la réponse

Voir la réponse

Question 50 Rapport

Which of the labelled parts is the venga caval opening?

3 Bonne réponse

Détails de la réponse

Voir la réponse






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