JAMB UTME - Biology - 1984 | Green Bridge CBT

Question 1 Report

Pepsin is a digestive enzymes which breaks

Cellulose into glucose molecules

Carbohydrates into simple sugars

Protein into peptones Correct answer

Fats into glycerol and fatty acid

Sucrose into glucose and fructose

Answer Details

Read lesson note on Nutrition (JAMB)

Nutrition

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Question 2 Report

The character-producing factors in living organisms are

Chromomeres

Alleles

Chromatids

Chromosomes

Genes Correct answer

Answer Details

Read lesson note on Genetic Terminologies (WAEC)

Genetic Terminologies

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Question 3 Report

Which of the following is NOT a waste product of plants?

Tannins

Oxygen

Carbondioxide

Sap Correct answer

Alkaloids

Answer Details

Plants need to excrete excess carbon dioxide and oxygen. Carbon dioxide is a waste product of aerobic respiration in plant cells. Oxygen is a waste product of photosynthesis

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

Relevance Of Biology To Agriculture

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Question 4 Report

Which of the following adaptations is NOT concerned with the flight of birds?

Streamlined shape

Presence of powerful muscles

Reduced body weight

Broad sternum

Webbed feet Correct answer

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Question 5 Report

Heat produced in tissue respiration in plants is

a chemical form of energy Correct answer

the only form of energy

the main form of energy

a useful form of energy

a waste form of energy

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Question 6 Report

Green plants are important in the ecosystem because they are

primary consumers

producers Correct answer

decomposers

secondary consumers

scavengers

Answer Details

Read lesson note on Ecosystem (WAEC)

Ecosystem

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Question 7 Report

The parts used by the tapeworm to fasten itself to the host’s intestine are the

Neck and suckers

Hooks and suckers Correct answer

Rostellum and suckers

Young proglottis and neck

Rostellum, hooks and suckers

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Question 8 Report

A man with normal haemoglobin (AA) marries a woman who has sickle-cell haemoglobin (SS). They have a child who has a sickle-cell trait. Which of the following genotypes could be associated with the child’s haemoglobin?

AS Correct answer

Answer Details

Read lesson note on Heredity (JAMB)

Heredity

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Question 9 Report

The mammalian organ through which nourishment and oxygen diffuse into a developing embryo is called

Amnion

Chorion

Umbilical cord

Oviduct

Placenta Correct answer

Answer Details

Read lesson note on Reproductive System (WAEC)

Read lesson note on Transport System (WAEC)

Read lesson note on Classification (WAEC)

Reproductive System

Transport System

Classification

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Question 10 Report

Which parts provide food for the developing chick?

2 and 3

4 and 5

3 and 4 Correct answer

2 and 5

1 and 2

Answer Details

Read lesson note on Cell Structure (WAEC)

Read lesson note on Respiratory System (WAEC)

Cell Structure

Respiratory System

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Question 11 Report

If a handful of soil is shaken with water and left to settle, the soil particles will settle from light to heavy particles as follows

humus, clay, silt, sand, stones Correct answer

humus, silt, clay, sand, stones

humus, clay,silt, stones, sand

humus, sand, silt, clay, stones

clay, humus, silt, sand, stones

Answer Details

Read lesson note on Soil (JAMB)

Read lesson note on Soil (WAEC)

Soil

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Question 12 Report

Which of the following statements is NOT true of the piliferous layer of root? It

Has a very thin cuticle Correct answer

Is the outermost layer of the cortex

May bear root hairs

Breaks down as the root ages

Is replaced by cork in old roots

Answer Details

Read lesson note on Cell Structure (WAEC)

Cell Structure

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Question 13 Report

Which of the following sequences represents process of blood clothing? 1. Fibrins forms a network of threads 2. Red blood cells are caught and clot is formed 3. Fibrinogen in plasma changes into fibrin 4. Blood is exposed to air

4, 3, 2, 1

4, 3, 1, 2 Correct answer

3, 1, 4, 2

1, 2, 3, 4

3, 1, 2, 4

Answer Details

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Question 14 Report

Underground stems which grow horizontally through the soil are

Bulbs

Rhizomes Correct answer

Runners

Corms

Stolons

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 15 Report

Spirogyra reproduces vegetatively by

spore production

fragmentation

Correct answer

multiple fission

budding

binary fission

Answer Details

Spirogyra reproduce using sexual or asexual reproduction methods. The process of reproduction varies depending on species of spirogyra. In vegetative varieties, reproduction occurs through the process of fragmentation, which involves the transformation of spirogyra through intercalary mitosis to produce new filaments.

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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Question 16 Report

The dorsal and anal fins of fish are used for

Upward movement

Controlling rolling Correct answer

Downward movement

Steering

Buoyancy

Answer Details

Read lesson note on Organization Of Life (WAEC)

Read lesson note on Cell Structure (WAEC)

Organization Of Life

Cell Structure

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Question 17 Report

Which of the following lists of diseases, their causes and transmission is CORRECT?

Cholera, virus, severe diarrhoea, infected water

Malaria, protozoan, high fever, contact with infected person

Syphilis, virus, veneral disease, sexual intercourse

small pox, virus, skin with blister, close contact with infected person Correct answer

Sleeping sickness, bacteria, tiredness, headache and dozing, tsetsefly bite

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Question 18 Report

The axial skeleton of a mammal does not include the bones of the

skull

tail

limbs Correct answer

back

neck

Answer Details

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

Tissues And Supporting Systems:

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Question 19 Report

If an animal is very active and has good muscular control, it is likely to have well-developed

Olfactory lobes

Cerebral hemisphere

Optic lobes

Cerebellum Correct answer

Spinal cord

Answer Details

Read lesson note on Growth (JAMB)

Read lesson note on Nervous Coordination (WAEC)

Growth

Nervous Coordination

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Question 20 Report

Which of the following invertebrates does NOT possess antennae?

Centipede

Crustacean

Millipede

Insect

Spider Correct answer

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Question 21 Report

The presence of a diastema in the jaw bone indicates that the mammal lacks the teeth suitable for

tearing Correct answer

chewing

cutting

chewing and tearing

cutting and grinding

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Question 22 Report

A mixture of mercurous and mercuric nitrates is added to a food substance. A white precipitates is formed which on gentle heating turns red. The food substance is

Protein Correct answer

Oil

Carbohydrates

Fat

Fatty acid

Answer Details

Read lesson note on Properties And Functions Of The Living Cell (WAEC)

Properties And Functions Of The Living Cell

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Question 23 Report

The process of soil erosion is usually from

rill → sheet → gully

gully → rill → sheet

sheet → guly → rill

sheet → rill → gully Correct answer

rill → gully → sheet

Answer Details

Read lesson note on Soil (JAMB)

Read lesson note on Soil (WAEC)

Soil

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Question 24 Report

The transect method can be used in ecology to show the

Number of plants and animals in a habitat Correct answer

Population of a particular plant species

Distribution of organisms along a line

Heights of trees in section of a forest

Number of young plants across a forest

Answer Details

Read lesson note on Ecosystem (WAEC)

Ecosystem

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Question 25 Report

Which of the following is INCORRECT? The prothallus of a fern

Is flattened heart-shaped structure

Is green because its cells contain chloroplasts

Is the dominant plant Correct answer

Bears the sexual organ

Is attached to the ground by numerous rizoids

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Question 26 Report

Leaching is

Washing away of humus from the soil surface Correct answer

reducing of soil aeration by pressure

soil erosion by means other than rainfall

loss of organic matter due to exposure to direct sunlight

washing out chalk and limestone from upper layers of by heavy rains

Answer Details

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Question 27 Report

Which of the following cell constituents is NOT common in both plants and animals?

Mitochondria

Chloroplast Correct answer

Ribosomes

Golgi apparatus

Vacuoles

Answer Details

Read lesson note on Cellular Respiration (WAEC)

Read lesson note on Protein Synthesis (WAEC)

Read lesson note on Nutrition (JAMB)

Read lesson note on Nucleic Acids (WAEC)

Read lesson note on Cell Structure (WAEC)

Cellular Respiration

Protein Synthesis

Nutrition

Nucleic Acids

Cell Structure

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Question 28 Report

Which of the following statement is NOT true of enzymes? They

Are proteins

Need cofactors to activate them

Are sensitive in their action

Are specific in their action

Can withstand high temperature Correct answer

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Question 29 Report

Normally the flow of blood is NEVER from

artery to arterioles

arterioles to capillaries

capillaries to venules

arteerioles to the artery Correct answer

venules to the vein

Answer Details

Read lesson note on Transport System (WAEC)

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

Transport System

Morphology Of Monocotyledonous And Dicotyledonous Plants

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Question 30 Report

The male toad differs from the female by having

Vocal sacs Correct answer

Shorter hind limbs

Longer fore limbs

Bulging eyes

Nictating membranes

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Question 31 Report

Osmosis can be defined as the movement of

Molecules from solution of higher concentration to low concentration

Molecules from solution of low concentration to high concentration

Water from solution of high concentration to low concentration

Water across a semi-permeable membrane from solution of low concentration to high concentration

Water across a semi-permeable membrane from solution of high concentration to low concentration Correct answer

Answer Details

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

The Cell And Its Environment: Physical And Biophysical Processes

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Question 32 Report

The mouth parts of the housefly are adapted for

Lapping and sponging Correct answer

Sucking and chewing

Piercing and sucking

Chewing and lapping

Biting and chewing

Answer Details

House flies can be easily identified by the four dark, longitudinal stripes on top of the thorax, or middle body region. They vary in length from l/8-l/4 of an inch. Their mouth parts are adapted for sponging up liquids; they cannot bite. These flies can only ingest liquid food. They feed on attractive solid food by regurgitating saliva on it. The saliva liquifies the solid material which is then sponged up with the proboscis. They require water since they are continually salivating and voiding liquids. Fly specks seen on many surfaces visited by house flies are the excreted wastes.

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Question 33 Report

How many nuclei are found in pollen tube during fertilization?

3 Correct answer

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Question 34 Report

The young chick is formed from

3 and 4

1, 3 and 5

2 Correct answer

Answer Details

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

Read lesson note on Heredity (JAMB)

Reproduction (Physical Changes In Males And Females)

Heredity

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Question 35 Report

A flowering plant is monoecious if

The androecium is found on one plant

The gynoecium is monocarpous

It produce essential organ

The gynoecium and androecium are on the same plant Correct answer

The flowers are unisexual

Answer Details

Read lesson note on Respiration (JAMB)

Read lesson note on Reproduction (JAMB)

Respiration

Reproduction

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Question 36 Report

Anaerobic respiration in yeast produces

Carbondioxide and ethanol Correct answer

Carbondioxide and water

Carbondioxide and oxygen

Carbondioxide and glucose

Ethanol and water

Answer Details

Read lesson note on Respiration (JAMB)

Read lesson note on Cellular Respiration (WAEC)

Respiration

Cellular Respiration

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Question 37 Report

Erosion can be reduced along shape by

ridging across slope Correct answer

ridging up slope

ridging down slope

crop rotation

bush fallowing system

Answer Details

Read lesson note on Biotechnology (WAEC)

Biotechnology

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Question 38 Report

An anemometer is an instrument for measuring

relative humidity

altitude

wind speed Correct answer

turbidity

salinity

Answer Details

Read lesson note on Cellular Respiration (WAEC)

Read lesson note on Alimentary System (WAEC)

Cellular Respiration

Alimentary System

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Question 39 Report

The structure above represents a quill feather. The structure labelled 'M' is the

quill

rachis

superior umbilicus Correct answer

inferior umbilicus

aftershaft

Answer Details

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Question 40 Report

Fehling's solution will readily change colour from blue to reddish colour when it is

mixed with sugar solution in the cold

warmed or heated by itself

mixed with reducing sugar in the cold

warmed or heated with complex solution

warmed with a solution of reducing sugar Correct answer

Answer Details

Read lesson note on Nutrition (JAMB)

Read lesson note on Adaptive Colouration (WAEC)

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

Nutrition

Adaptive Colouration

Morphology Of Monocotyledonous And Dicotyledonous Plants

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Question 41 Report

Blood clotting is initiated by

Leucocytes

Platelets Correct answer

Haemolymph

Haemoglobin

Erythrocytes

Answer Details

Read lesson note on Feeding Habits (WAEC)

Feeding Habits

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Question 42 Report

The removal of a man’s pancreas by surgical operation can affect only the digestion of

Starch

Starch, protein and fats Correct answer

Oils and fats

Proteins

Carbohydrates and fats

Answer Details

Read lesson note on Transport System (WAEC)

Read lesson note on Classification (WAEC)

Transport System

Classification

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Question 43 Report

Denitrifying bacteria in nature liberate gaseous nitrogen directly from

ammonium salts

soil nitrates Correct answer

thunderstorms

soil nitrites

plant and animal proteins

Answer Details

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Question 44 Report

Exoskeleton is NOT found in the

Maggot

Mosquito larva

Earth worm Correct answer

Caterpillar

Termite

Answer Details

Read lesson note on Nitrogen Cycle (WAEC)

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

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

Nitrogen Cycle

Forms In Which Living Cells Exist

Tissues And Supporting Systems:

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Question 45 Report

Spirogyra and mucor can be grouped together as Thallophyta because

They are unicellular organisms

Their spores could be dispersed by wind

They are capable of living independent lives

They reproduce sexually only

Their bodies are made up of thallus and filaments alternatively Correct answer

Answer Details

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

Forms In Which Living Cells Exist

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Question 46 Report

In the Burret test, some protein was mixed with sodium hydroxide solution. Which of the following chemicals should be added to the mixture for a positive results?

Mercurous nitrates

Copper sulphate Correct answer

Mercuric nitrate

Sodium carbonate

Ammonium hydroxide

Answer Details

Read lesson note on Properties And Functions Of The Living Cell (WAEC)

Properties And Functions Of The Living Cell

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Question 47 Report

Which of the following types of vertebrae occur in equal numbers in the rabbit, rat and man?

Caudal