What is glucose?

Glucose is a simple sugar molecule


It is broken down during respiration to release energy. 

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What would happen to your blood glucose levels following a meal?

Blood glucose levels would rise.

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Which organ detects changes in blood glucose concentrations?

The pancreas.

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What will the pancreas do if blood glucose concentrations rise too high?

It will produce insulin and release it into the bloodstream.

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What 2 things will insulin cause cells to do?

  1. Absorb glucose from the blood into the cells.


  1. Convert excess glucose into glycogen. 


This mostly happens in liver and muscle cells.

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What will the pancreas do if blood glucose concentrations fall too low?

It will produce glucagon.

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What 2 things will glucagon cause cells to do?

  1. Break glycogen down into glucose.


  1. Release that glucose into the bloodstream. 


This mostly happens in liver and muscle cells.

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