CAIE A-Level Biology 4.1.3 Roles of Membrane Components
Practise explaining how phospholipids, cholesterol, proteins and carbohydrate-bearing molecules give membranes their properties.
- Syllabus
- 2028–2030
- Course
- Biology 9700
- Level
- AS
Exam points
- link phospholipid tails and cholesterol to membrane fluidity, stability and permeability
- distinguish channel, carrier, receptor and enzyme functions of membrane proteins
- explain how glycoproteins and glycolipids act in cell recognition, adhesion and signalling
4.1.3—Role of membrane components question 1
Fig. 1.1 is a diagram representing part of the phospholipid bilayer of a cell surface membrane.
Fig. 1.1
State one role of cholesterol in phospholipid bilayers.
All question bank results loaded