In Which of the Following Cases Is Energy NOT Needed

question 12

Multiple Choice

In which of the following cases is energy NOT needed for transmembrane transport?

• A)Lysine moves into the cell against its concentration gradient via the Na⁺/lysine symporter.
• B)Potassium ions (K⁺)move out of the cell down the K⁺ concentration gradient via potassium channels.
• C)Glucose moves into the cell down its concentration gradient via a glucose uniporter.
• D)The second and third answers are correct.
• E)all of the above

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Definitions:

Clotting Process

The series of biochemical events leading to the formation of a blood clot, critical in preventing excessive bleeding when vessels are injured.

Agglutination

Process by which blood cells, bacteria, or other particles are caused to adhere to one another and form clumps.

Erythrocytes

Red blood cells responsible for carrying oxygen and carbon dioxide throughout the body.

von Willebrand Factor

A blood glycoprotein involved in hemostasis, important for the formation of blood clots.