A Student Claims That Both Freeze-Fracturing Techniques and Cell Fusion

question 56

Multiple Choice

A student claims that both freeze-fracturing techniques and cell fusion experiments provided evidence that supported the fluid mosaic model used to describe the cell membrane.Which statement best evaluates this student's claim?

• A) The claim is accurate because freeze-fracturing techniques revealed protein movement within a membrane, while cell fusion experiments showed how proteins were embedded in the lipid bilayer.
• B) The claim is accurate because freeze-fracturing techniques showed how proteins were embedded in the lipid bilayer, while cell fusion experiments revealed protein movement within a membrane.
• C) The claim is inaccurate because freeze-fracturing techniques did not show how proteins or lipids could move about within a membrane as cell fusion experiments did.
• D) The claim is inaccurate because cell fusion experiments did not reveal the distribution of proteins within the lipid bilayer as freeze-fracturing techniques did.
• E) The claim is inaccurate because the fluid mosaic model is supported by evidence obtained from experiments other than those using freeze-fracturing or cell fusion techniques.

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Definitions:

Variable Cost Concept

Expenses that change in proportion to the amount of production or service operations.

Differential Analysis

A decision-making process that examines the differences in cost and revenue between different business alternatives to determine the most profitable option.

Fixed Costs

Costs that do not vary with the level of production or sales, such as rent, salaries, and insurance.

Outside Purchase

Acquisition of goods or services from external suppliers due to inability or inefficiency in producing internally.