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 81· Cellular activities· WAEC
Plasmolysis occurs when a plant cell is placed in a
Explanation and discussion
Question 82· Cellular activities· JAMB
In the experiment shown, the level of liquid in the tube rises because
Explanation and discussion
Question 83· Cellular activities· JAMB
A plant cell placed in a hypotonic solution becomes
Explanation and discussion
Question 84· Cellular activities· WAEC
Cell division that produces cells identical to the parent cell is
Explanation and discussion
Question 85· Cellular activities· WAEC
Root hair cells absorb water from the soil by
Explanation and discussion
Question 86· Cellular activities· WAEC
Wilting of plants on a hot afternoon is due to
Explanation and discussion
Question 87· Cellular activities· JAMB
A plant cell placed in a concentrated salt solution will:
Explanation and discussion
Question 88· Cellular activities· JAMB
Phagocytosis is the process by which a cell
Explanation and discussion
Question 89· Cellular activities· WAEC
In a flowering plant, meiosis takes place in the
Explanation and discussion
Question 90· Cellular activities· WAEC
Turgidity in plant cells helps to
Explanation and discussion
Question 91· Cellular activities· JAMB
The movement of water molecules across a semi-permeable membrane from a dilute to a concentrated solution is:
Explanation and discussion
Question 92· Cellular activities· WAEC
Which process gives off oxygen as a by-product?
Explanation and discussion
Question 93· Cellular activities· JAMB
The rate of diffusion of a substance increases when the
Explanation and discussion
Question 94· Cellular activities· JAMB
Most human enzymes work best at about
Explanation and discussion
Question 95· Cellular activities· JAMB
Most enzymes are denatured by
Explanation and discussion
Question 96· Cellular activities· JAMB
Crossing over between homologous chromosomes occurs during
Explanation and discussion
Question 97· Cellular activities· JAMB
Turgidity of plant cells helps to
Explanation and discussion
Question 98· Cellular activities· WAEC
The movement of water molecules from a dilute solution to a more concentrated one through a selectively permeable membrane is
Explanation and discussion
Question 99· Cellular activities· JAMB
A human cell with 46 chromosomes undergoes meiosis. Each cell produced has
Explanation and discussion
Question 100· Cellular activities· JAMB
Plasmolysis of a plant cell occurs when it is placed in a
Explanation and discussion

Practise Biology like the real exam. A timed CBT, your score, and the topics to fix.

Start a Biology test

JAMB and WAEC Biology questions

Plasmolysis occurs when a plant cell is placed in a

In the experiment shown, the level of liquid in the tube rises because

A plant cell placed in a hypotonic solution becomes

Cell division that produces cells identical to the parent cell is

Root hair cells absorb water from the soil by

Wilting of plants on a hot afternoon is due to

A plant cell placed in a concentrated salt solution will:

Phagocytosis is the process by which a cell

In a flowering plant, meiosis takes place in the

Turgidity in plant cells helps to

The movement of water molecules across a semi-permeable membrane from a dilute to a concentrated solution is:

Which process gives off oxygen as a by-product?

The rate of diffusion of a substance increases when the

Most human enzymes work best at about

Most enzymes are denatured by

Crossing over between homologous chromosomes occurs during

Turgidity of plant cells helps to

The movement of water molecules from a dilute solution to a more concentrated one through a selectively permeable membrane is

A human cell with 46 chromosomes undergoes meiosis. Each cell produced has

Plasmolysis of a plant cell occurs when it is placed in a