JAMB and WAEC Biology questions

791 questions with answers and explanations. Tap an option to check yourself.

All topics Cell structure and organisation · 56 Cellular activities · 56 Co-ordination and control · 58 Ecology · 71 Evolution · 45 Excretion · 52 Growth · 45 Heredity and variation · 60 Nutrition · 64 Reproduction · 62 Respiration · 55 Support and movement · 50 Transport · 57 Variety of organisms · 60

Question 681· Transport· WAEC
Water vapour leaving a plant through its stomata is called
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Answer: D. transpiration
Explanation and discussion
Question 682· Transport· JAMB
The wall of an artery is thicker than that of a vein because arteries
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Answer: A. carry blood under high pressure
Explanation and discussion
Question 683· Transport· JAMB
Root pressure and transpiration pull together explain
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Answer: C. the rise of water in the xylem
Explanation and discussion
Question 684· Transport· JAMB
The chamber of the heart that pumps blood to the whole body is the
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Answer: D. left ventricle
Explanation and discussion
Question 685· Transport· JAMB
Haemoglobin combines with oxygen to form
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Answer: A. oxyhaemoglobin
Explanation and discussion
Question 686· Transport· WAEC
Digested food is carried round the body mainly in the blood
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Answer: C. plasma
Explanation and discussion
Question 687· Transport· WAEC
The hepatic portal vein carries blood from the
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Answer: A. intestines to the liver
Explanation and discussion
Question 688· Transport· WAEC
The vessel that carries blood from the heart to the lungs is the
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Answer: C. pulmonary artery
Explanation and discussion
Question 689· Transport· JAMB
Which blood vessels contain valves along their length?
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Answer: B. veins
Explanation and discussion
Question 690· Transport· WAEC
Which blood cells defend the body against infection?
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Answer: D. White blood cells
Explanation and discussion
Question 691· Transport· JAMB
Most carbon(IV) oxide is transported in the blood as
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Answer: D. hydrogencarbonate ions in the plasma
Explanation and discussion
Question 692· Transport· JAMB
Water enters the root hairs of a plant mainly by
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Answer: C. osmosis
Explanation and discussion
Question 693· Transport· WAEC
Which blood vessel carries oxygenated blood from the lungs to the heart?
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Answer: C. pulmonary vein
Explanation and discussion
Question 694· Transport· WAEC
Blood vessels that carry blood away from the heart are
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Answer: A. arteries
Explanation and discussion
Question 695· Transport· JAMB
A person with blood group O is called a universal donor because the red cells
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Answer: C. carry neither antigen A nor antigen B
Explanation and discussion
Question 696· Transport· WAEC
Which conditions increase the rate of transpiration?
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Answer: A. dry, warm and windy air
Explanation and discussion
Question 697· Transport· WAEC
Blood platelets are important in
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Answer: D. blood clotting
Explanation and discussion
Question 698· Transport· JAMB
Which of the following increases the rate of transpiration?
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Answer: D. moving air (wind)
Explanation and discussion
Question 699· Transport· JAMB
The lymphatic system
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Answer: C. returns excess tissue fluid to the blood
Explanation and discussion
Question 700· Transport· JAMB
Xylem vessels are
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Answer: D. dead, hollow tubes strengthened with lignin
Explanation and discussion

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JAMB and WAEC Biology questions

Water vapour leaving a plant through its stomata is called

The wall of an artery is thicker than that of a vein because arteries

Root pressure and transpiration pull together explain

The chamber of the heart that pumps blood to the whole body is the

Haemoglobin combines with oxygen to form

Digested food is carried round the body mainly in the blood

The hepatic portal vein carries blood from the

The vessel that carries blood from the heart to the lungs is the

Which blood vessels contain valves along their length?

Which blood cells defend the body against infection?

Most carbon(IV) oxide is transported in the blood as

Water enters the root hairs of a plant mainly by

Which blood vessel carries oxygenated blood from the lungs to the heart?

Blood vessels that carry blood away from the heart are

A person with blood group O is called a universal donor because the red cells

Which conditions increase the rate of transpiration?

Blood platelets are important in

Which of the following increases the rate of transpiration?

The lymphatic system

Xylem vessels are