Question

Difficulty: Identify which of the following is an example of active transport. GLUT4 is a carrier protein that 1 transports glucose down its concentration gradient. Aquaporins are seen in cells 2 involved in the uptake of large amounts of water. ABC transporters are carrier 3 proteins that pump antibiotics out of the cell. Sodium ion channels open when 4 the voltage across the membrane changes.

          Difficulty:

Identify which of the following is an example of active transport.

GLUT4 is a carrier protein that
1 transports glucose down its concentration gradient.

Aquaporins are seen in cells
2 involved in the uptake of large amounts of water.

ABC transporters are carrier
3 proteins that pump antibiotics out of the cell.

Sodium ion channels open when
4 the voltage across the membrane changes.

Difficulty:

Identify which of the following is an example of active transport.

GLUT4 is a carrier protein that
1 transports glucose down its concentration gradient.

Aquaporins are seen in cells
2 involved in the uptake of large amounts of water.

ABC transporters are carrier
3 proteins that pump antibiotics out of the cell.

Sodium ion channels open when
4 the voltage across the membrane changes.

Added by Gregg M.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Jennifer Stoner

Step 1

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, using energy, often in the form of ATP. Show more…

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Difficulty: Identify which of the following is an example of active transport. GLUT4 is a carrier protein that 1 transports glucose down its concentration gradient. Aquaporins are seen in cells 2 involved in the uptake of large amounts of water. ABC transporters are carrier 3 proteins that pump antibiotics out of the cell. Sodium ion channels open when 4 the voltage across the membrane changes.