GCSE Biology (AQA)

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Increasing Blood Glucose Levels

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Homeostasis and Response Hormonal Coordination in Humans

Increasing Blood Glucose Levels

1:53 Control of Blood Glucose Concentration
Spec 4.5.3.2
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  • When we haven't eaten or have used a lot of energy, blood glucose levels decrease.
  • Cells need a constant glucose supply for respiration to release energy for life's processes.
  • The body maintains blood glucose levels between meals through the conversion between glucose and glycogen.
  • High blood glucose levels are decreased by converting glucose into glycogen for storage.
  • Low blood glucose levels are increased by converting glycogen back into glucose.
  • Glucagon is the hormone that increases blood glucose levels by converting glycogen back to glucose.
  • Insulin converts glucose into glycogen.
  • It's important to distinguish between the terms glycogen and glucagon in spelling and pronunciation.
  • The pancreas produces glucagon when it detects low blood glucose levels.
  • Glucagon acts on the liver and muscle cells to convert glycogen back into glucose.
  • Glycogen is primarily stored in the liver and muscle cells, not in all body cells.
  • The released glucose from glycogen conversion increases blood glucose levels.
  • This process is an example of homeostasis and is important for exams.

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