Mutations Are Changes to the Information in DNA

question 33

Essay

Mutations are changes to the information in DNA.What would happen to an enzyme's ability to function if a mutation changed the order of some of the amino acids in its polypeptide chain?

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Definitions:

Aquaporins

Membrane proteins that serve as channels in the transfer of water, and sometimes small solutes across the cell membrane.

Active Transport

The movement of substances across cell membranes against their concentration gradient, requiring energy expenditure by the cell.

Connexin Molecules

Protein molecules that assemble into gap junctions, facilitating communication between adjacent cells by allowing the passage of ions and small molecules.

Sodium-Potassium Pump

A vital cell membrane protein that transports sodium ions out of and potassium ions into cells, maintaining cellular electrochemical gradients.