OCR A Level Biology B (Advancing Biology)
OCR A Level Biology B (Advancing Biology) The Heart and Monitoring Heart Function Exam Questions
Free OCR A Level Biology B (Advancing Biology) exam questions on The Heart and Monitoring Heart Function, with mark schemes. Covers heart structure, the cardiac cycle, control of heartbeat and ECGs.
The Heart and Monitoring Heart Function exam questions
1 question pack of real past exam questions with its mark scheme. Answer every question without notes, then mark your answers line by line against the mark scheme.
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A Level Biology Flashcards
Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Pick your exam board, then test yourself with the questions on this page.
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About OCR A Level Biology B (Advancing Biology) The Heart and Monitoring Heart Function
This topic covers how the heart works and how it is monitored.
What you need to know
- Structure Chambers, valves and vessels.
- Cardiac cycle Pressure and volume changes.
- Control SAN, AVN, bundle of His and Purkyne fibres.
- ECGs Interpreting traces, tachycardia, bradycardia and arrhythmia.
Common mistakes in The Heart and Monitoring Heart Function
- Misreading valve opening on pressure graphs.
- Confusing the SAN and AVN.
- Calculating heart rate from ECG incorrectly.
Try three The Heart and Monitoring Heart Function exam-style questions
1. An ECG shows a beat every 0.75 s. Find the heart rate. (1 mark)
Show the mark scheme answer
80 bpm.
2. Explain why the left ventricle wall is thicker. (1 mark)
Show the mark scheme answer
It pumps blood around the whole body at higher pressure.
3. State what causes the atrioventricular valves to close. (1 mark)
Show the mark scheme answer
Ventricular pressure becomes greater than atrial pressure.
The Heart and Monitoring Heart Function FAQs
What does this topic cover?
Heart structure, the cardiac cycle and ECGs.
Which practical links here?
Heart dissection and measuring heart rate.
What is cardiac output?
Stroke volume x heart rate.
Revise this topic with flashcards: A Level Biology Flashcards, with mark scheme answers for Anki and Quizlet.
