A-LevelBiologyCell membranes and transport9700/12 · May/June 2012 · Q141 Mark

What is the role of cholesterol in the cell surface membrane?

Ato assist active transport

Bto assist facilitated diffusion

Cto provide hydrophilic channels

Dto regulate fluidity of the membrane

✓ Correct answer

D: to regulate fluidity of the membrane

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

Topic: Cell membranes and transport, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, May/June 2012 Paper 1 Variant 2, question 14.

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

In an investigation to find the water potential of onion tissue, some students used epidermal tissue from the storage…

Which statements about the fluid mosaic model of a membrane are correct? 1 The movement of phospholipids in the memb…

Which features must always be present for water to move between two solutions by osmosis? 1 carrier proteins 2 cell …

The maximum pressure in each of the four chambers of a healthy human heart was recorded during one cardiac cycle. The…

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

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