Why Should It Not Be Surprising That for Many Cells

question 6

Multiple Choice

Why should it not be surprising that for many cells water requires a protein for its transport across a membrane?

• A)Water is very polar which inhibits its free diffusion across the membrane.
• B)All molecules require transport proteins to cross a membrane.
• C)The transport protein is needed to prevent the hydrolysis of the phospholipid chains as water crosses the membrane.
• D)There is never a concentration gradient for water across the membrane to drive its transport.

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Definitions:

Plan Acceptability

The degree to which stakeholders find a proposed plan or project to be satisfactory or agreeable.

Composition

The arrangement or makeup of something, often referred to in the context of artistic elements or financial mixtures.

Subordination

A ranking of priorities in claims for ownership or interest; often used in debt agreements to determine the sequence of payments.

Extension

In finance, an agreement to extend the maturity date or due date of a financial instrument or loan.