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 701· Transport· WAEC
The smallest blood vessels, whose walls are one cell thick, are
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Answer: A. capillaries
Explanation and discussion
Question 702· Transport· WAEC
Transpiration is increased by
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Answer: D. high temperature and wind
Explanation and discussion
Question 703· Transport· JAMB
The loss of liquid water as droplets from the leaf margins of some plants is called
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Answer: B. guttation
Explanation and discussion
Question 704· Transport· WAEC
Red blood cells carry oxygen because they contain
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Answer: D. haemoglobin
Explanation and discussion
Question 705· Transport· JAMB
Water moves up the stem of a plant mainly through the:
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Answer: A. xylem
Explanation and discussion
Question 706· Transport· WAEC
The chamber of the heart with the thickest muscular wall is the
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Answer: A. left ventricle
Explanation and discussion
Question 707· Transport· WAEC
Xylem tissue transports
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Answer: D. water and mineral salts
Explanation and discussion
Question 708· Transport· JAMB
Manufactured food is moved from the leaves to other parts of a plant through the
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Answer: C. phloem
Explanation and discussion
Question 709· Transport· WAEC
A person with blood group O is called a universal donor because their red cells have
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Answer: C. no A or B antigens
Explanation and discussion
Question 710· Transport· WAEC
Valves in veins
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Answer: B. prevent backflow of blood
Explanation and discussion
Question 711· Transport· JAMB
Antibodies are produced by
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Answer: D. lymphocytes
Explanation and discussion
Question 712· Transport· JAMB
Blood pressure is highest in the
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Answer: B. arteries
Explanation and discussion
Question 713· Transport· JAMB
Haemoglobin contains the element
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Answer: B. iron
Explanation and discussion
Question 714· Transport· WAEC
Blood platelets help in
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Answer: D. clotting
Explanation and discussion
Question 715· Transport· WAEC
The heart valve between the left atrium and left ventricle is the
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Answer: A. bicuspid (mitral) valve
Explanation and discussion
Question 716· Transport· WAEC
The thickest wall of the heart is that of the
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Answer: A. left ventricle
Explanation and discussion
Question 717· Transport· JAMB
A person of blood group AB can safely receive blood of
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Answer: A. any ABO group
Explanation and discussion
Question 718· Transport· JAMB
The tricuspid valve lies between the
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Answer: B. right atrium and right ventricle
Explanation and discussion
Question 719· Transport· JAMB
A potometer is used to measure the rate of
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Answer: A. water uptake by a leafy shoot
Explanation and discussion
Question 720· Transport· WAEC
Water is transported in flowering plants through the
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Answer: B. xylem
Explanation and discussion

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JAMB and WAEC Biology questions

The smallest blood vessels, whose walls are one cell thick, are

Transpiration is increased by

The loss of liquid water as droplets from the leaf margins of some plants is called

Red blood cells carry oxygen because they contain

Water moves up the stem of a plant mainly through the:

The chamber of the heart with the thickest muscular wall is the

Xylem tissue transports

Manufactured food is moved from the leaves to other parts of a plant through the

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

Valves in veins

Antibodies are produced by

Blood pressure is highest in the

Haemoglobin contains the element

Blood platelets help in

The heart valve between the left atrium and left ventricle is the

The thickest wall of the heart is that of the

A person of blood group AB can safely receive blood of

The tricuspid valve lies between the

A potometer is used to measure the rate of

Water is transported in flowering plants through the