Cells: All cells arise from other cells (mitosis, cell cycle, binary fission)
From Mock A · Paper 1 (topics 1–4)
2.42 marks
In a root tip squash, 24 of 160 cells were in a stage of mitosis. Calculate the mitotic index as a percentage.
From Mock B · Paper 1 (topics 1–4)
6.12 marks
Describe what happens during anaphase of mitosis.
From Mock B · Paper 1 (topics 1–4)
6.23 marks
A drug was tested on cancer cells. The mitotic index fell from 28% to 9% (data are illustrative, written for this paper). Explain how this drug could slow tumour growth and suggest one disadvantage of using it.
From Mock C · Paper 3 (all topics, practical skills and essay)
2.13 marks
Describe how to prepare a root tip squash to observe mitosis.
From Mock C · Paper 3 (all topics, practical skills and essay)
2.22 marks
In a squash, 48 of 400 cells were in mitosis. Calculate the mitotic index.
From Mock C · Paper 3 (all topics, practical skills and essay)
2.32 marks
6 of 200 cells were in anaphase. The cell cycle takes 24 hours. Estimate the duration of anaphase in minutes.
Score 0 / 14 · 0 of 6 marked
This paper is written by Plasmo in the style of the AQA A-Level Biology exam. It is not a past paper and is not produced or endorsed by the exam board.
All cells arise from other cells (mitosis, cell cycle, binary fission) Exam Questions: AQA A-Level Biology | Plasmo