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OCR GCSE Combined Science

Topic questions Cell biology Mitosis

Mitosis

9 questions · 17 marks · about 20 minutes

Mitosis questions

TopicMitosis

OCR J250 Mitosis 9 questions

Biology Paper 1 June 2025 Foundation tier, Question 6 1 mark

What is the role of mitosis in a multicellular organism such as a human?

A To make gametes

B To make genetically different cells

C To make genetically identical cells

D To make stem cells from body cells

Question 6, shown as an image
[1]
Reveal mark scheme Mark scheme for question 6

Biology Paper 7 June 2024 Higher tier, Question 9 1 mark

Which statement correctly compares mitosis and DNA replication in eukaryotic cells?

A Only DNA replication is part of the cell cycle.

B Only DNA replication occurs inside sub-cellular structures.

C Only mitosis is needed to produce new cells.

D Only mitosis is part of the cell cycle.

Question 9, shown as an image
[1]
Reveal mark scheme Mark scheme for question 9

Biology Paper 1 June 2023 Foundation tier, Question 9 1 mark

Which stage of the cell cycle is represented by the diagram?

Figure for question 9

A Differentiation of cell

B DNA replication

C Growth of cell

D Movement of chromosomes

Question 9, shown as an image
[1]
Reveal mark scheme Mark scheme for question 9

Biology Paper 7 June 2023 Higher tier, Question 1 1 mark

Which stage of the cell cycle is represented in the diagram?

Figure for question 1

A Differentiation of cell

B DNA replication

C Growth of cell

D Movement of chromosomes

Question 1, shown as an image
[1]
Reveal mark scheme Mark scheme for question 1

Biology Paper 1 November 2021 Foundation tier, Question 8 1 mark

The diagram represents the cell cycle showing the hours spent in each part of the cycle.

Figure for question 8

The total time for the cell cycle is 21 hours.

What is the total time spent in cell division for this cell?

A 1

B 3

C 4

D 11

Question 8, shown as an image
[1]
Reveal mark scheme Mark scheme for question 8

Biology Paper 1 June 2018 Foundation tier, Question 17, also on the Higher paper 5 marks

(a)

The diagram shows a cell during one stage of mitosis.

Figure for question 17
(a)(i)

Describe two things that happen to the chromosomes in the next stage of mitosis.

[2]
Reveal mark scheme Mark scheme for question 17(a)(i)
(a)(ii)

Chromosomes are made of DNA.

Describe the structure of DNA.

[2]
Reveal mark scheme Mark scheme for question 17(a)(ii)
(b)

After mitosis, cell differentiation takes place.

What is meant by the term cell differentiation ?

[1]
Reveal mark scheme Mark scheme for question 17(b)

Biology Paper 7 June 2018 Higher tier, Question 12, also on the Foundation paper 5 marks

(a)

The diagram shows a cell during one stage of mitosis.

Figure for question 12
(a)(i)

Describe two things that happen to the chromosomes in the next stage of mitosis.

[2]
Reveal mark scheme Mark scheme for question 12(a)(i)
(a)(ii)

Chromosomes are made of DNA.

Describe the structure of DNA.

[2]
Reveal mark scheme Mark scheme for question 12(a)(ii)
(b)

After mitosis, cell differentiation takes place.

What is meant by the term cell differentiation ?

[1]
Reveal mark scheme Mark scheme for question 12(b)

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