Why Are Lipids and Proteins Free to Move Laterally in Membranes

question 54

Multiple Choice

Why are lipids and proteins free to move laterally in membranes?

• A)The interior of the membrane is filled with liquid water.
• B)There are no covalent bonds between lipid and protein in the membrane.
• C)Hydrophilic portions of the lipids are in the interior of the membrane.
• D)There are only weak hydrophobic interactions in the interior of the membrane.
• E)Molecules such as cellulose can pull them in various directions.

---

Definitions:

Simultaneous Consumption

A characteristic of services that indicates they are consumed at the same time as they are produced.

Economies of Scale

Cost advantages reaped by companies when production becomes efficient, as the scale of production and the quantity of output increase.

Price Discrimination

A pricing strategy where a seller charges different prices for the same product or service to different consumers, based on market segments, capacity to pay, or purchasing contexts.

Monopoly Power

The ability of a monopolist to significantly control market price or exclude competition in a particular market.