Which of the Following Is Most Likely True of a Protein

question 20

Multiple Choice

Which of the following is most likely true of a protein that cotransports glucose and sodium ions into the intestinal cells of an animal?

• A) The sodium ions are moving down their electrochemical gradient while glucose is moving up.
• B) Glucose entering the cell along its concentration gradient provides energy for uptake of sodium ions against the electrochemical gradient.
• C) Sodium ions can move down their electrochemical gradient through the cotransporter whether or not glucose is present outside the cell.
• D) The cotransporter can also transport potassium ions.
• E) A substance that blocks sodium ions from binding to the cotransport protein will also block the transport of glucose.

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Definitions:

Cirrhosis

A late stage of scarring (fibrosis) of the liver caused by many forms of liver diseases and conditions.

Direct Contact

The physical transfer of microorganisms or substances between two people or between a person and a contaminated surface.

Pathogens

Microorganisms that can cause disease in their host, including bacteria, viruses, fungi, and parasites.

Unbroken Skin

Skin that has no cuts, scratches, or open wounds, serving as a protective barrier against infection.