Membrane Proteins Serve Many Functions

question 13

Multiple Choice

Membrane proteins serve many functions.One of the functions is transportation of substances across the membrane.If a cell biologist placed cells into an environment in which a chemical has been added that blocks the function of only carrier proteins,the process that will be affected is

• A)active transport.
• B)osmosis.
• C)simple diffusion.
• D)phagocytosis.
• E)pinocytosis.

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Definitions:

Sodium Hydroxide

A highly caustic and strong base used in many industries; it is also known as lye or caustic soda.

α,β-unsaturated Aldehyde

An organic compound with a double bond between the alpha and beta carbon atoms and a carbonyl group at the alpha position.

β-diketone

A class of organic compounds containing two keto groups (C=O) attached to adjacent carbon atoms.

β-ketoester

A compound containing a keto group (=O) and an ester group (-COOR) separated by a carbon; it's a versatile intermediate in organic synthesis.