lesson 8 regulating glucose Flashcards

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1
Q

blood glucose concentration is controlled by which two hormones

A

insulin and glucagon`

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2
Q

blood glucose concentration is essentially what

A

the amount of sugar in our bloodstream

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3
Q

is our blood glucose concentration gets too high, what occurs

A

it starts to damage our tissues

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4
Q

the rise in glucose levels is detected by what

A

the pancreas

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5
Q

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

A

release insulin into the bloodstream

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6
Q

as insulin travels around the body, what does it do

A

it binds to receptors on certain cells

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7
Q

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

A

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

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8
Q

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

A

liver and muscle cells

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9
Q

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

A

glycogen

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10
Q

glycogen is essentially what

A

a long term storage form of glucose

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11
Q

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

A

makes the blood glucose concentration decrease

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12
Q

glucagon is different to glycogen as glucagon is what

A

a hormone

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13
Q

just like insulin, glucagon is also produced by what

A

the pancreas

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14
Q

glucagon does the opposite of what

A

insulin

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15
Q

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

A

secretes glucagon into the bloodstream

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16
Q

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

A

liver cells

17
Q

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

A

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

18
Q

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

A

into the blood

19
Q

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

A

this brings the blood glucose concentration back the normal

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