2024 JAMB Biology Past Questions & Answers

Question 1

Which of these is a medium of transportation in plants?

Accepted Answer

A. cell sap

Answer

B. Nucleus

Answer

C. Mitochondrion

Answer

D. Ribosome

Question 2

The type of circulatory system found in arthropods and some molluscs is

Accepted Answer

A. open circulatory system

Answer

B. closed circulatory system

Answer

C. single circulatory system

Answer

D. double circulatory system

Question 3

The transmission of diseases through contamination of food is an economic importance of

Accepted Answer

B. cockroaches

Answer

A. mosquitoes

Answer

C. butterflies

Answer

D. bees

Question 4

A community with a population of two million three hundred and ten thousand people living in an area of two thousand three hundred and ten square kilometres has a population density of

Accepted Answer

D. 1000

Answer

A. 10000

Answer

B. 10

Answer

C. 100

Question 5

Ecological succession can result from

Accepted Answer

A. newly formed habitat

Answer

B. habitat with abundant food

Answer

C. habitat with space and light

Answer

D. population of plants on a fertile land

Question 6

In vascular plants, xylem tissue is responsible for

Accepted Answer

A. transportation of water

Answer

B. translocation of food

Answer

C. transportation of hormones

Answer

D. storage of sugar

Question 7

The first organism evolved from which of the following habitat?

Accepted Answer

C. aquatic

Answer

A. terrestrial

Answer

B. arboreal

Answer

D. desert

Question 8

In glycolysis, glucose is broken down through series of reactions in the presence of enzyme and absence of oxygen to produce

Accepted Answer

C. pyruvic acid + ATP

Answer

A. Acetyl-coenzyme + ATP

Answer

B. Phosphorylated glucose

Answer

D. Amino acid

Question 9

DNA carries the genetic information and are generally found in the

Accepted Answer

B. chromosomes

Answer

A. ribosomes

Answer

C. blood

Answer

D. enzymes

Question 10

Hemophilia in humans is controlled by the

Accepted Answer

D. recessive gene

Answer

A. blood group

Answer

B. dominant gene

Answer

C. rhesus factor

Question 11

The pigment carrying oxygen in the blood is

Accepted Answer

B. haemoglobin

Answer

A. plasma

Answer

C. oxyhaemoglobin

Answer

D. erythrocytes

Question 12

Which of the following characteristics is possessed by both living and non-living things?

Accepted Answer

C. Both have weight

Answer

A. Both age and die

Answer

B. Both have life

Answer

D. Both have no shape

Question 13

After fertilization in plants, the zygote develops into

Accepted Answer

B. an embryo

Answer

A. fruit

Answer

C. seed

Answer

D. an endosperm

Question 14

A medium texture soil with high organic matter is

Accepted Answer

B. loamy

Answer

A. clay

Answer

C. humus

Answer

D. sandy

Question 15

Lamarck's theory of evolution is based on the idea of

Accepted Answer

A. the inheritance of acquired traits

Answer

B. organisms' survival of the fittest

Answer

C. organisms constantly struggling for existence

Answer

D. plenty offspring produced by organisms

Question 16

One of the following is a courtship behaviour in animals

Accepted Answer

B. display

Answer

A. fighting

Answer

C. hibernation

Answer

D. feeding

Question 17

Xerophytes are mostly found in the

Accepted Answer

A. arid land

Answer

B. tropical rainforest

Answer

C. montane forest

Answer

D. Sudan savanna

Question 18

Cell division that involves the growth, development, repairs and replacement of worn out tissues is

Accepted Answer

B. mitosis

Answer

A. biosynthesis

Answer

C. meiosis

Answer

D. synthesis

Question 19

The cell organelle responsible for the synthesis of protein is the

Accepted Answer

D. ribosome

Answer

A. centriole

Answer

B. vacuole

Answer

C. plastid

Question 20

One of the components of xylem tissue is

Accepted Answer

B. tracheid

Answer

A. companion cell

Answer

C. sieve tube

Answer

D. epidermal

Question 21

The part of the inner ear that is responsible for hearing is

Accepted Answer

B. cochlea

Answer

A. sacculus

Answer

C. utriculus

Answer

D. ampullae

Question 22

The bacteria in the large intestine of man synthesizes

Accepted Answer

C. amino acids and vitamins

Answer

A. vitamins and minerals

Answer

B. vitamins and glucose

Answer

D. amino acids and minerals

Question 23

Which of the following conditions causes aestivation in animals?

Accepted Answer

B. Drought

Answer

A. Wind

Answer

C. Rain

Answer

D. Cold

Question 24

Which of the following plant is found in the ground layer of a tropical rainforest in Nigeria?

Accepted Answer

B. liverwort

Answer

A. obeche

Answer

C. mahogany

Answer

D. oil palm

Question 25

Use the diagram to answer the question that follows The flower of plants belongs to part labelled

Accepted Answer

D. IV

Answer

A. I

Answer

B. II

Answer

C. III

Question 26

Reproduction in paramecium is by

Accepted Answer

A. binary fission

Answer

B. budding

Answer

C. spore formation

Answer

D. fragmentation

Question 27

The central nervous system comprises of

Accepted Answer

B. brain and spinal cord

Answer

A. brain and somatic

Answer

C. spinal cord and somatic

Answer

D. brain only

Question 28

Similar structures that are modified to work in different ways in different organisms are referred to as

Accepted Answer

A. homologous structures

Answer

B. analogous structures

Answer

C. divergent structures

Answer

D. convergent structures

Question 29

Bryophyte is an intermediate group between higher algae and

Accepted Answer

B. pteridophyte

Answer

A. thallophyte

Answer

C. spermatophyte

Answer

D. tracheophyte

Question 30

Energy transfer in plants and animals are in the form of

Accepted Answer

B. ATP

Answer

A. DNA

Answer

C. GTP

Answer

D. RNA

Question 31

One main feature of trees in the savanna habitat is the possession of

Accepted Answer

D. thick, corky bark

Answer

A. large, leathery leaves

Answer

B. straight slender stems with branches near the top

Answer

C. thin, smooth barks

Question 32

Which of the following statements explains the theory of natural selection?

Accepted Answer

C. The weaker offspring are eliminated

Answer

A. There is no struggle for existence

Answer

B. New species get better adaptation

Answer

D. Unused structures disappear later

Question 33

The feeding relationship between ruminants and the bacteria in their digestive tract is

Accepted Answer

C. symbiotic

Answer

A. saprophytic

Answer

B. parasitic

Answer

D. heterotrophic

Question 34

A discontinuous morphological variation often used in crime detection is the

Accepted Answer

C. finger prints

Answer

A. skin colour

Answer

B. blood group

Answer

D. eye colour

Question 35

The rhizoid of liverwort is

Accepted Answer

A. unicellular and unbranched

Answer

B. multicellular and branched

Answer

C. unicellular and branched

Answer

D. multicellular and unbranched

Question 36

The major building block of an organism is...

Accepted Answer

B. Carbon

Answer

A. Nitrogen

Answer

C. Water

Answer

D. Sulphur

Question 37

The process by which plants loss water to the atmosphere is

Accepted Answer

A. transpiration

Answer

B. guttation

Answer

C. translocation

Answer

D. evaporation

Question 38

The type of variation where there are no remarkable differences between the two extreme individuals is called

Accepted Answer

A. continuous variation

Answer

B. morphological variation

Answer

C. physiological variation

Answer

D. discontinuous variation

Question 39

The part of the brain that receives sensory impulses of smell is the

Accepted Answer

A. olfactory lobe

Answer

B. medulla oblongata

Answer

C. cerebrum

Answer

D. Cerebellum

Question 40

The endocrine gland that is called the master gland is the

Accepted Answer

C. pituitary gland

Answer

A. thyroid gland

Answer

B. pancreas

Answer

D. adrenal gland

Question 41

Mouth part adapted for piercing and sucking is found in

Accepted Answer

C. mosquito

Answer

A. housefly

Answer

B. grasshopper

Answer

D. cockroach

Question 42

A fruit formed from one flower with many carpels is referred to as

Accepted Answer

C. aggregate

Answer

A. simple

Answer

B. multiple

Answer

D. false

Question 43

In which zone of the marine habitat does the organisms require adaptation for attachment?

Accepted Answer

C. intertidal

Answer

A. Supratidal

Answer

B. Subtidal

Answer

D. abyssal zone

Question 44

How many chromosomes will be present in a gamete if the somatic cell has 8 chromosomes?

Accepted Answer

C. 4

Answer

A. 16

Answer

B. 6

Answer

D. 8

Question 45

Blood group AB is considered as universal recipient because they can receive blood from groups

Accepted Answer

D. A, B, AB and O

Answer

A. A and O

Answer

B. B and O

Answer

C. AB and O

Question 46

Bile is a greenish alkaline liquid which is stored in the

Accepted Answer

A. gall bladder

Answer

B. liver

Answer

C. stomach

Answer

D. pancreas

Question 47

Darwin's theory of evolution is based on the principle of

Accepted Answer

B. natural selection

Answer

A. use and disuse of organ

Answer

C. acquired characteristics

Answer

D. mutation

Question 48

The changes of living organisms over generation is referred to as

Accepted Answer

B. organic evolution

Answer

A. human evolution

Answer

C. physical evolution

Answer

D. chemical evolution

Question 49

The common examples of trees found in the desert are

Accepted Answer

B. baobab and cacti

Answer

A. raffia palm and coconut

Answer

C. white and red mangrove

Answer

D. shea-butter and isobelina

Question 50

In a cross involving a heterozygous red flower plant (Rr) and a white flowered plant (rr). What is the probability that the offspring will be Rr?

Accepted Answer

A. $\frac{1}{2}$

Answer

B. 1

Answer

C. 2

Answer

D. $\frac{1}{4}$

Question 51

Which of the following evidences of evolution employs the use of radio-isotope dating?

Accepted Answer

C. Fossil records

Answer

A. comparative anatomy

Answer

B. Embryology

Answer

D. vestigial organs

2024 JAMB Biology Past Questions and Answers

Questions 1–59

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2024 JAMB Biology Past Questions and Answers

Questions 1–59

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