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The accepted model of plasma membrane structure proposed by Singer and Nicolson is called the:
ARigid lattice model
BFluid mosaic model
CRailroad track model
DDouble barrier model
Answer & Solution
Correct answer: B. Fluid mosaic model
1. Several models of membrane structure were proposed during the twentieth century.
2. The one that survived describes a membrane whose parts drift within a two-dimensional sheet.
3. The explanation proposed by Singer and Nicolson is called the fluid mosaic model.
4. The railroad track description belongs to the earlier Davson and Danielli picture.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 5 'Structure and Function of Plasma Membranes', sections 5.1-5.4_
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