lesson 8 regulating glucose

Question 1

blood glucose concentration is controlled by which two hormones

Answer 1

insulin and glucagon`

Question 2

blood glucose concentration is essentially what

Answer 2

the amount of sugar in our bloodstream

Question 3

is our blood glucose concentration gets too high, what occurs

Answer 3

it starts to damage our tissues

Question 4

the rise in glucose levels is detected by what

Answer 4

the pancreas

Question 5

the pancreas in response to detecting the rise of glucose levels does what

Answer 5

release insulin into the bloodstream

Question 6

as insulin travels around the body, what does it do

Answer 6

it binds to receptors on certain cells

Question 7

as insulin binds to receptors on certain cells, what does it do

Answer 7

it tells them to take some of the glucose that’s in the blood

Question 8

the insulin binding to receptors happens to most cells but most importantly which two

Answer 8

liver and muscle cells

Question 9

liver and muscles take up lots of the extra glucose molecules and combine them together to form what

Answer 9

glycogen

Question 10

glycogen is essentially what

Answer 10

a long term storage form of glucose

Question 11

as glycogen is produced the glucose is being removed in the blood which does what

Answer 11

makes the blood glucose concentration decrease

Question 12

glucagon is different to glycogen as glucagon is what

Answer 12

a hormone

Question 13

just like insulin, glucagon is also produced by what

Answer 13

the pancreas

Question 14

glucagon does the opposite of what

Answer 14

insulin

Question 15

our pancreas detects a low concentration of blood glucose and does what

Answer 15

secretes glucagon into the bloodstream

Question 16

as glucagon travels around the body, it binds to many different cells, but mainly which

Answer 16

liver cells

Question 17

as glucagon binds to the liver cells, what does the liver do then

Answer 17

it breaks down the glycogen and breaks it down into lots of glucose molecules

Question 18

once the liver has broken down the glycogen into lots of glucose molecules, it then sends the glucose molecules where

Answer 18

into the blood

Question 19

as the glucose molecules are sent back to the bloodstream after glycogen being broken down, this does what

Answer 19

this brings the blood glucose concentration back the normal

(so all of our cells have a good supply of it for respiration)