Once Glucose Has Entered a Cell,what Prevents It from Diffusing

question 74

Multiple Choice

Once glucose has entered a cell,what prevents it from diffusing back out of the cell?

• A) glucose pumps actively pump it back
• B) one side of the cell membrane is permeable to glucose, but the other side is not
• C) glucose inhibitors attach to glucose once it's in the cell
• D) glucose is phosphorylated preventing it from leaving the cell
• E) glucose is hydrolyzed into two three-carbon molecules that cannot diffuse in a reverse direction

---

Definitions:

VR 30 Schedule

A variable ratio reinforcement schedule where a response is reinforced, on average, every thirtieth time it is made.

Response Deprivation Theory

A principle that suggests a behavior can become more frequent if it is restricted or prevented below its baseline level of occurrence.

Set Point Theory

The idea that each person has a genetically determined range of weight and temperature that their body will try to maintain to stay at optimal health.

Free Operant Theory

A concept in behavioral psychology where an organism can respond at any time, leading to certain consequences, which then affect the frequency of future behaviors.