Curriculum
Course: AQA A Level Biology 7402
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Curriculum

AQA A Level Biology 7402

1. Biological Molecules

0/102

2. Cell Structure

0/95

3. Exchange and Transport

0/98

4. Genetics, Variation and Interdependence

0/94

5. Energy Transfers In and Between Organisms (A Level only)

0/63

6. Organisms Respond to Changes in their Environments (A Level only)

0/93

7. Genetics, Populations, Evolution and Ecosystems (A Level only)

0/55

8. The Control of Gene Expression (A Level only)

0/72

9. Exam Guidance and Skills

0/38
Quiz

6.2.2 Resting Potential – Exam questions

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  • Questions count: 4
  • Passing grade: B+
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1.
What is the approximate resting potential of a neurone?
+40 mV
−55 mV
−70 mV
0 mV
2.
Which statement best describes Resting potential?
The potential difference across the membrane of a resting neurone, about −70 mV, inside negative.
The period after an action potential when a new one cannot be generated, ensuring one-way, discrete impulses.
A cell specialised to transmit electrical impulses.
The minimum depolarisation (about −55 mV) needed to trigger an action potential.
3.

The resting potential of a neurone is about

+40 mV
0 mV
−200 mV
−70 mV
4.

The resting potential is maintained mainly by

sodium–potassium pumps and the greater permeability of the membrane to K⁺
sodium channels being open
calcium pumps
chloride ions leaving
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Part of 6. Organisms Respond to Changes in their Environments (A Level only) — see every lesson and quiz in this unit.
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