Part D Facilitated diffusion or active transport? Classify each example as facil

Question

Part D Facilitated diffusion or active transport? Classify each example as facilitated diffusion, active transport, or secondary active transport. Reset Help Chloride shift: Red blood cells produce bicarbonate ions as a way to carry CO2. As bicarbonate concentration increases inside the cell, the ions exit the cells through a carrier protein, which also pulls chloride ions into the cell Proton pump: Produces stomach acid by spending ATP to move H+ into the lumen of the stomach Calcium channels: Allow calcium ions to enter cardiac muscle cells with their gradient, stimulating contraction SGLT Involved in reabsorption of glucose in the kidneys. Na* moves with its gradient into cells, forcing glucose to move against its gradient. GLUT: Allows glucose to enter cells with its gradient. OATs: Secrete wastes in the kidneys by trading them for other substances. Facilitated diffusion Active transport Secondary active transport Submit uest Answer

Explanation / Answer

Facilitated diffusion is when a substance is moved from higher to lower concentration without ATP.

Active transport uses ATP

Secondary active transport involves moving one substance downhill and one uphill it's concentration gradient.

Facilitated diffusion:

1. GLUT : allows glucose to enter cell with its gradient.

2. Calcium channels: allows calcium ions to enter cardiac muscle cells with their gradient, stimulating contraction.

Active transport:

1. Proton pump: produces stomach acid by spending ATP to move H+ into the lumen of the stomach.

Secondary active transport:

1. Chloride shift

2. SGLT

3. OATs

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