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Edexcel A-Level Biology AS 1.8 Cardiac Cycle and Mammalian Heart Function Questions

Practise identifying heart chambers, valves and vessels, explaining systole and diastole through pressure and volume, and interpreting cardiac-cycle data with marked evidence.

Syllabus
First assessment 2019
Course
Biology YBI11
Level
AS

Exam points

  • Identify chambers, valves and major vessels on mammalian heart diagrams.
  • Explain systole and diastole through pressure, volume and valve changes.
  • Interpret heart-rate, cycle-duration or aortic-flow data with values and units.

Edexcel A-Level Biology AS 1.8 Cardiac Cycle and Mammalian Heart Function Questions question 1

[Maximum number: 2]

Question (a)

(a)

The diagram shows the internal structure of a mammalian heart.

Figure for Question (a) — Edexcel A-Level Biology AS
[ 2 ]

Question (i)

(i)

Which blood vessel does the coronary artery branch from?

A

P

B

Q

C

R

D

S

[ 1 ]

Question (ii)

(ii)

When in the cardiac cycle is valve T open?

A

atrial systole and cardiac diastole

B

atrial systole only

C

cardiac diastole and ventricular systole

D

ventricular systole only

[ 1 ]
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