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Date November 2016 Marks available 1 Reference code 16N.1.SL.TZ0.3
Level Standard level Paper Paper 1 Time zone TZ0 / no time zone
Command term Identify Question number 3 Adapted from N/A

Question

The cell membrane model proposed by Davson–Danielli was a phospholipid bilayer sandwiched between two layers of globular protein.  Which evidence led to the acceptance of the Singer–Nicolson model?

A. The orientation of the hydrophilic phospholipid heads towards the proteins
B. The formation of a hydrophobic region on the surface of the membrane
C. The placement of integral and peripheral proteins in the membrane
D. The interactions due to amphipathic properties of phospholipids

Markscheme

C

Examiners report

[N/A]

Syllabus sections

Core » Topic 1: Cell biology » 1.3 Membrane structure
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