Question

Insulin is a hormone that regulates blood glucose levels. It is released when glucose levels increase above normal. Based on the concept of negative feedback, what effect will insulin have on blood glucose levels?

a. it will decrease them
b. insulin will not affect glucose levels
c. it will increase them
d. it makes them go both up and down.
e. insulin does not regulate blood glucose levels.

Answer 1

Insulin decreases blood glucose levels by promoting glucose uptake into cells and inhibiting glucose production by the liver, following the principles of negative feedback.

Hence, the answer to the question is (a) it will decrease them.

Step-by-step explanation:

Based on the concept of negative feedback, insulin will have the effect of decreasing blood glucose levels. This is because insulin is a hormone released by the pancreas in response to increased levels of glucose in the blood. It promotes the uptake of glucose into cells, especially muscle and liver cells, converting glucose into glycogen for storage. Furthermore, it inhibits the production of glucose by the liver. These actions mediated by insulin ensure that blood glucose levels are reduced back to a normal range.