JAMB and WAEC Biology questions: Cellular activities

56 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 21· Cellular activities· WAEC
Uptake of mineral ions by root hairs from a dilute soil solution is mainly by
Explanation and discussion
Question 22· Cellular activities· WAEC
A plant cell that has lost water and whose cytoplasm has shrunk away from the cell wall is said to be
Explanation and discussion
Question 23· Cellular activities· WAEC
Red blood cells placed in distilled water will
Explanation and discussion
Question 24· Cellular activities· JAMB
DNA is replicated during
Explanation and discussion
Question 25· Cellular activities· WAEC
Plasmolysis occurs when a plant cell is placed in a
Explanation and discussion
Question 26· Cellular activities· JAMB
In the experiment shown, the level of liquid in the tube rises because
Explanation and discussion
Question 27· Cellular activities· JAMB
A plant cell placed in a hypotonic solution becomes
Explanation and discussion
Question 28· Cellular activities· WAEC
Cell division that produces cells identical to the parent cell is
Explanation and discussion
Question 29· Cellular activities· WAEC
Root hair cells absorb water from the soil by
Explanation and discussion
Question 30· Cellular activities· WAEC
Wilting of plants on a hot afternoon is due to
Explanation and discussion
Question 31· Cellular activities· JAMB
A plant cell placed in a concentrated salt solution will:
Explanation and discussion
Question 32· Cellular activities· JAMB
Phagocytosis is the process by which a cell
Explanation and discussion
Question 33· Cellular activities· WAEC
In a flowering plant, meiosis takes place in the
Explanation and discussion
Question 34· Cellular activities· WAEC
Turgidity in plant cells helps to
Explanation and discussion
Question 35· 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 36· Cellular activities· WAEC
Which process gives off oxygen as a by-product?
Explanation and discussion
Question 37· Cellular activities· JAMB
The rate of diffusion of a substance increases when the
Explanation and discussion
Question 38· Cellular activities· JAMB
Most human enzymes work best at about
Explanation and discussion
Question 39· Cellular activities· JAMB
Most enzymes are denatured by
Explanation and discussion
Question 40· Cellular activities· JAMB
Crossing over between homologous chromosomes occurs during
Explanation and discussion

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JAMB and WAEC Biology questions: Cellular activities

Uptake of mineral ions by root hairs from a dilute soil solution is mainly by

A plant cell that has lost water and whose cytoplasm has shrunk away from the cell wall is said to be

Red blood cells placed in distilled water will

DNA is replicated during

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