JAMB UTME - Biology - 1984 | Green Bridge CBT

Ibeere 1 Ìròyìn

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 Ìdáhùn tó tọ́

Mercuric nitrate

Sodium carbonate

Ammonium hydroxide

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Properties And Functions Of The Living Cell (WAEC)

Properties And Functions Of The Living Cell

Wo Idahun

Ibeere 2 Ìròyìn

The character-producing factors in living organisms are

Chromomeres

Alleles

Chromatids

Chromosomes

Genes Ìdáhùn tó tọ́

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Ka ìwé ẹ̀kọ́ nípa Genetic Terminologies (WAEC)

Genetic Terminologies

Wo Idahun

Ibeere 3 Ìròyìn

Blood clotting is initiated by

Leucocytes

Platelets Ìdáhùn tó tọ́

Haemolymph

Haemoglobin

Erythrocytes

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Ka ìwé ẹ̀kọ́ nípa Feeding Habits (WAEC)

Feeding Habits

Wo Idahun

Ibeere 4 Ìròyìn

How many nuclei are found in pollen tube during fertilization?

3 Ìdáhùn tó tọ́

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Wo Idahun

Ibeere 5 Ìròyìn

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 Ìdáhùn tó tọ́

Bears the sexual organ

Is attached to the ground by numerous rizoids

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Ibeere 6 Ìròyìn

Exoskeleton is NOT found in the

Maggot

Mosquito larva

Earth worm Ìdáhùn tó tọ́

Caterpillar

Termite

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Nitrogen Cycle (WAEC)

Ka ìwé ẹ̀kọ́ nípa Forms In Which Living Cells Exist (WAEC)

Ka ìwé ẹ̀kọ́ nípa Tissues And Supporting Systems: (WAEC)

Nitrogen Cycle

Forms In Which Living Cells Exist

Tissues And Supporting Systems:

Wo Idahun

Ibeere 7 Ìròyìn

The process of soil erosion is usually from

rill → sheet → gully

gully → rill → sheet

sheet → guly → rill

sheet → rill → gully Ìdáhùn tó tọ́

rill → gully → sheet

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Soil (JAMB)

Ka ìwé ẹ̀kọ́ nípa Soil (WAEC)

Soil

Wo Idahun

Ibeere 8 Ìròyìn

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 Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa The Cell And Its Environment: Physical And Biophysical Processes (WAEC)

The Cell And Its Environment: Physical And Biophysical Processes

Wo Idahun

Ibeere 9 Ìròyìn

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

Mitochondria

Chloroplast Ìdáhùn tó tọ́

Ribosomes

Golgi apparatus

Vacuoles

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Cellular Respiration (WAEC)

Ka ìwé ẹ̀kọ́ nípa Protein Synthesis (WAEC)

Ka ìwé ẹ̀kọ́ nípa Nutrition (JAMB)

Ka ìwé ẹ̀kọ́ nípa Nucleic Acids (WAEC)

Ka ìwé ẹ̀kọ́ nípa Cell Structure (WAEC)

Cellular Respiration

Protein Synthesis

Nutrition

Nucleic Acids

Cell Structure

Wo Idahun

Ibeere 10 Ìròyìn

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 Ìdáhùn tó tọ́

Spinal cord

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Growth (JAMB)

Ka ìwé ẹ̀kọ́ nípa Nervous Coordination (WAEC)

Growth

Nervous Coordination

Wo Idahun

Ibeere 11 Ìròyìn

Which of the following groups of factors is completely abiotic?

Salinity, tide, plankton, turbidity

Temperaure, pH, soil, insect

Wind, altitude, humidity, light Ìdáhùn tó tọ́

Conifers, wind, pH, rainfall

Soil, water, bacteria, salinity

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Wo Idahun

Ibeere 12 Ìròyìn

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 Ìdáhùn tó tọ́

humus, silt, clay, sand, stones

humus, clay,silt, stones, sand

humus, sand, silt, clay, stones

clay, humus, silt, sand, stones

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Soil (JAMB)

Ka ìwé ẹ̀kọ́ nípa Soil (WAEC)

Soil

Wo Idahun

Ibeere 13 Ìròyìn

Anaerobic respiration in yeast produces

Carbondioxide and ethanol Ìdáhùn tó tọ́

Carbondioxide and water

Carbondioxide and oxygen

Carbondioxide and glucose

Ethanol and water

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Respiration (JAMB)

Ka ìwé ẹ̀kọ́ nípa Cellular Respiration (WAEC)

Respiration

Cellular Respiration

Wo Idahun

Ibeere 14 Ìròyìn

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 Ìdáhùn tó tọ́

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Wo Idahun

Ibeere 15 Ìròyìn

The male toad differs from the female by having

Vocal sacs Ìdáhùn tó tọ́

Shorter hind limbs

Longer fore limbs

Bulging eyes

Nictating membranes

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Wo Idahun

Ibeere 16 Ìròyìn

The transect method can be used in ecology to show the

Number of plants and animals in a habitat Ìdáhùn tó tọ́

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

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Ecosystem (WAEC)

Ecosystem

Wo Idahun

Ibeere 17 Ìròyìn

The young chick is formed from

3 and 4

1, 3 and 5

2 Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Reproduction (Physical Changes In Males And Females) (WAEC)

Ka ìwé ẹ̀kọ́ nípa Heredity (JAMB)

Reproduction (Physical Changes In Males And Females)

Heredity

Wo Idahun

Ibeere 18 Ìròyìn

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 Ìdáhùn tó tọ́

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

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Ibeere 19 Ìròyìn

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 Ìdáhùn tó tọ́

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Wo Idahun

Ibeere 20 Ìròyìn

Which of the following is NOT regarded as a pollutant on land or in the air?

smoke

noise

sulphur (IV) oxide

carbon monoxide

nitrogen

Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Local (Nigerian) Biomes (JAMB)

Local (Nigerian) Biomes

Wo Idahun

Ibeere 21 Ìròyìn

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 Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Forms In Which Living Cells Exist (WAEC)

Forms In Which Living Cells Exist

Wo Idahun

Ibeere 22 Ìròyìn

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

Caudal

Thoracic

Lumber

Cervical Ìdáhùn tó tọ́

Sacral

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Wo Idahun

Ibeere 23 Ìròyìn

The mouth parts of the housefly are adapted for

Lapping and sponging Ìdáhùn tó tọ́

Sucking and chewing

Piercing and sucking

Chewing and lapping

Biting and chewing

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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.

Wo Idahun

Ibeere 24 Ìròyìn

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

Neck and suckers

Hooks and suckers Ìdáhùn tó tọ́

Rostellum and suckers

Young proglottis and neck

Rostellum, hooks and suckers

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Wo Idahun

Ibeere 25 Ìròyìn

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

Has a very thin cuticle Ìdáhùn tó tọ́

Is the outermost layer of the cortex

May bear root hairs

Breaks down as the root ages

Is replaced by cork in old roots

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Cell Structure (WAEC)

Cell Structure

Wo Idahun

Ibeere 26 Ìròyìn

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

Amnion

Chorion

Umbilical cord

Oviduct

Placenta Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Reproductive System (WAEC)

Ka ìwé ẹ̀kọ́ nípa Transport System (WAEC)

Ka ìwé ẹ̀kọ́ nípa Classification (WAEC)

Reproductive System

Transport System

Classification

Wo Idahun

Ibeere 27 Ìròyìn

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 Ìdáhùn tó tọ́

Oil

Carbohydrates

Fat

Fatty acid

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Properties And Functions Of The Living Cell (WAEC)

Properties And Functions Of The Living Cell

Wo Idahun

Ibeere 28 Ìròyìn

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

quill

rachis

superior umbilicus Ìdáhùn tó tọ́

inferior umbilicus

aftershaft

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Wo Idahun

Ibeere 29 Ìròyìn

Green plants are important in the ecosystem because they are

primary consumers

producers Ìdáhùn tó tọ́

decomposers

secondary consumers

scavengers

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Ecosystem (WAEC)

Ecosystem

Wo Idahun

Ibeere 30 Ìròyìn

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

Tannins

Oxygen

Carbondioxide

Sap Ìdáhùn tó tọ́

Alkaloids

Awọn alaye Idahun

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

Ka ìwé ẹ̀kọ́ nípa Relevance Of Biology To Agriculture (WAEC)

Relevance Of Biology To Agriculture

Wo Idahun

Ibeere 31 Ìròyìn

Leaching is

Washing away of humus from the soil surface Ìdáhùn tó tọ́

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

Awọn alaye Idahun

Wo Idahun

Ibeere 32 Ìròyìn

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

tearing Ìdáhùn tó tọ́

chewing

cutting

chewing and tearing

cutting and grinding

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Wo Idahun

Ibeere 33 Ìròyìn

Mosses, liverworts and ferns can be grouped together because they

Are all aquatic plants

All grow in deserts

Are seedless plants Ìdáhùn tó tọ́

Have undifferentiated plant bodies

All produce colourless flowers

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Mosses And Ferns (WAEC)

Ka ìwé ẹ̀kọ́ nípa Organization Of Life (WAEC)

Ka ìwé ẹ̀kọ́ nípa Ecological Factors (WAEC)

Mosses And Ferns

Organization Of Life

Ecological Factors

Wo Idahun

Ibeere 34 Ìròyìn

Heat produced in tissue respiration in plants is

a chemical form of energy Ìdáhùn tó tọ́

the only form of energy

the main form of energy

a useful form of energy

a waste form of energy

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Wo Idahun

Ibeere 35 Ìròyìn

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 Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Nutrition (JAMB)

Ka ìwé ẹ̀kọ́ nípa Adaptive Colouration (WAEC)

Ka ìwé ẹ̀kọ́ nípa Morphology Of Monocotyledonous And Dicotyledonous Plants (WAEC)

Nutrition

Adaptive Colouration

Morphology Of Monocotyledonous And Dicotyledonous Plants

Wo Idahun

Ibeere 36 Ìròyìn

Pepsin is a digestive enzymes which breaks

Cellulose into glucose molecules

Carbohydrates into simple sugars

Protein into peptones Ìdáhùn tó tọ́

Fats into glycerol and fatty acid

Sucrose into glucose and fructose

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Nutrition (JAMB)

Nutrition

Wo Idahun

Ibeere 37 Ìròyìn

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

Starch

Starch, protein and fats Ìdáhùn tó tọ́

Oils and fats

Proteins

Carbohydrates and fats

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Transport System (WAEC)

Ka ìwé ẹ̀kọ́ nípa Classification (WAEC)

Transport System

Classification

Wo Idahun

Ibeere 38 Ìròyìn

Denitrifying bacteria in nature liberate gaseous nitrogen directly from

ammonium salts

soil nitrates Ìdáhùn tó tọ́

thunderstorms

soil nitrites

plant and animal proteins

Awọn alaye Idahun

Wo Idahun

Ibeere 39 Ìròyìn

Normally the flow of blood is NEVER from

artery to arterioles

arterioles to capillaries

capillaries to venules

arteerioles to the artery Ìdáhùn tó tọ́

venules to the vein

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Transport System (WAEC)

Ka ìwé ẹ̀kọ́ nípa Morphology Of Monocotyledonous And Dicotyledonous Plants (WAEC)

Transport System

Morphology Of Monocotyledonous And Dicotyledonous Plants

Wo Idahun

Ibeere 40 Ìròyìn

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 Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Heredity (JAMB)

Heredity

Wo Idahun

Ibeere 41 Ìròyìn

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 Ìdáhùn tó tọ́

3, 1, 4, 2

1, 2, 3, 4

3, 1, 2, 4

Awọn alaye Idahun

Wo Idahun

Ibeere 42 Ìròyìn

Which parts provide food for the developing chick?

2 and 3

4 and 5

3 and 4 Ìdáhùn tó tọ́

2 and 5

1 and 2

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Cell Structure (WAEC)

Ka ìwé ẹ̀kọ́ nípa Respiratory System (WAEC)

Cell Structure

Respiratory System

Wo Idahun

Ibeere 43 Ìròyìn

Spirogyra reproduces vegetatively by

spore production

fragmentation

Ìdáhùn tó tọ́

multiple fission

budding

binary fission

Awọn alaye Idahun

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.

Ka ìwé ẹ̀kọ́ nípa Forms In Which Living Cells Exist (WAEC)

Ka ìwé ẹ̀kọ́ nípa Reproduction (Physical Changes In Males And Females) (WAEC)

Forms In Which Living Cells Exist

Reproduction (Physical Changes In Males And Females)

Wo Idahun

Ibeere 44 Ìròyìn

An anemometer is an instrument for measuring

relative humidity

altitude

wind speed Ìdáhùn tó tọ́

turbidity

salinity