◈ Oracle PrepSign Up Free
A-LevelBiologyTransport in mammals9700/12 · Oct/Nov 2015 · Q291 Mark

What happens to the atrioventricular valves and to the semilunar valves during atrial systole and ventricular systole?

Aopen closed closed open
Bopen closed open open
Cclosed open closed closed
Dclosed open open closed

✓ Correct answer

A: open closed closed open

Practise more questions on this topic

Oracle Prep sorts past-paper questions by topic, so you can drill Transport in mammals and see which topics are most likely to come up next.

Sign up free →

About this question

Topic
Transport in mammals, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source
A-Level Biology, Oct/Nov 2015 Paper 1 Variant 2, question 29.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Related Biology questions

Transport in mammalsFeb/Mar 20191m

The statements list some of the events in the cardiac cycle. They are not in the correct order. 1 The impulse travels…

Transport in mammalsFeb/Mar 20211m

Which row correctly describes the heart during atrial systole?

Transport in mammalsFeb/Mar 20211m

The table shows the results used to draw an oxygen dissociation curve for adult haemoglobin. partial pressure of oxy…

Gas exchangeFeb/Mar 20221m

Which statement helps to explain why there is no cartilage in the walls of the bronchioles?

Infectious diseasesFeb/Mar 20221m

Which feature of the disease cholera decreases the spread of the pathogen Vibrio cholerae?

ImmunityFeb/Mar 20221m

In the hybridoma method, what is grown by cell culture to produce monoclonal antibodies?

← Browse all past-paper questions

© 2026 Oracle Prep