Question

Was there active transport of glucose from the coastal to serosal side of the jejunum?

Option 1: Yes, due to the higher concentration on the mucosal side.
Option 2: No, as the glucose concentration is higher on the stressful side.
Option 3: Maybe, but the glucose concentration is irrelevant to active transport.
Option 4: Insufficient information to determine the direction of glucose transport.

Answer 1

Active transport of glucose occurs from the mucosal to the serosal side of the jejunum in the small intestine.

Step-by-step explanation:

Active transport of glucose occurs in the jejunum, specifically from the mucosal (coastal) side to the serosal (blood) side. This is because glucose is transported against its concentration gradient, requiring the use of energy. The transport is facilitated by a carrier protein that also binds sodium ions. When both glucose and sodium are bound to the carrier protein, it moves into the cell and releases glucose into the cytoplasm, from where glucose can diffuse into the blood.