Homeostasis and Response - Regulating Glucose

Question 1

When blood glucose levels get too high, after eating for instance, the ________ secretes

Answer 1

pancreas secretes insulin.

Question 2

The pancreas is both an

Answer 2

organ and a gland

Question 3

What does insulin facilitate?

Answer 3

the uptake of glucose into cells from the bloodstream, and the conversion of glucose into glycogen to be stored in the liver (and muscles). This decreases the amount of glucose in the bloodstream.

Question 4

When blood glucose levels drop, the pancreas releases…

Answer 4

glucagon.

Question 5

What does glucagon do?

Answer 5

Glucagon stimulates the liver to convert stored glycogen back into glucose and release it into the bloodstream.

Question 6

This is a ___________ _________ system as

Answer 6

negative feedback:
An increase in blood glucose triggers insulin release, lowering glucose levels. Conversely, a decrease in blood glucose prompts glucagon release, raising glucose levels.

Question 7

Dangers of high glucose levels

Answer 7

• damage to blood vessels
• diabetes
• impaired immune system
• nerve damage

Question 8

Dangers of low glucose levels

Answer 8

• lack of energy
• affects the functioning of organs
• required for respiration
• can lead to coma, seizures or death