To Move Solutes Like Amino Acids into a Cell by Active

question 54

Multiple Choice

To move solutes like amino acids into a cell by active transport, the cell

• A) must possess appropriate transport proteins in the plasma membrane.
• B) must have a net gain in energy resulting from active transport.
• C) maintains a lower concentration of the amino acids in the cytoplasm.
• D) must move water out of the cytoplasm at the same time.

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Definitions:

Acid

Substance that releases hydrogen ions in water.

Base

Substance that accepts hydrogen ions in water.

Buffer

Set of chemicals that can keep the pH of a solution stable by alternately donating and accepting ions that contribute to pH.

Solute

A substance dissolved in another substance, typically the component of a solution present in the lesser amount.