Question

the cells within the liver (hepatocytes) can either take up glucose from the blood or release glucose into the blood. glucose is passively transported across the hepatocyte membrane through facilitated diffusion. the glucose carrier protein is induced to change its shape once glucose binds to it, which allows a single molecule of glucose to be carried across the plasma membrane from an area of higher concentration to an area of lower concentration. once glucose molecules enter the hepatocytes, enzymes combine glucose molecules to form glycogen in process called glycogenesis. glucose is stored in this form. when additional glucose is needed by body tissues, glycogen is broken down into glucose in a process called glycogenolysis, which results in an increase in the concentration of glucose within the hepatocytes. glucose crosses the hepatocyte plasma membranes, once again by facilitated diffusion, and then enters into the blood to allow a steady supply of glucose to be delivered to cells in the body in between periods of eating. 1. the _ determines if glucose moves into or out of the hepatocyte. amount of intracellular atp available oxygen concentration between the intracellular and extracellular fluid glucose concentration between the intracellular and extracellular fluid amount of intracellular atp versus intracellular glucose 2. a reduction in the number of glucose carrier proteins within the plasma membrane would _ the rate of glucose diffusion. decrease not affect increase

Explanation:

1. Glucose moves by facilitated diffusion, which depends on concentration gradient. So glucose concentration between intra - and extracellular fluid determines movement.
2. Glucose carrier proteins facilitate glucose diffusion. Fewer carriers mean less facilitation, thus decreasing the rate of diffusion.

Answer:

1. C. glucose concentration between the intracellular and extracellular fluid
2. A. decrease