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Describe how the Body Controls Blood Sugar Concentration

Worksheet Overview

image of chocolate cake



Now, who doesn't love a slice of chocolate cake?! 

Unfortunately, around 4 million people in the UK have to be cautious when consuming food with lots of sugar in, like chocolate cake. Let's find out why below:


Glucose is the name given to sugar that's used by the body for energy. The amount of sugar in our blood has to be monitored - sometimes you will have too much and sometimes too little.

The amount of glucose can be affected by:

Eating - causing glucose levels to rise.

Vigorous exercise - causing blood glucose levels to drop


The monitoring of glucose levels is an example of homeostasis. ​This is because the body has to keep a constant internal environment. Homeostasis allows the body’s cells to work at their optimum, meaning that conditions are adjusted to allow them to perform at their best. 

The conditions of the environment are always changing. Our body has to respond to these changes, but at the same time ensure that certain internal conditions don't vary too much, otherwise, damage could be caused.


Image of types of homeostasis



Glucose is monitored and controlled by the pancreas. The pancreas produces different hormones in response to the levels of glucose.

Insulin is a hormone that's released when blood glucose levels are high. It causes cells to take in glucose, which is used for respiration. Excess glucose is stored as glycogen

Diabetes is a condition where blood glucose levels aren't maintained - they can get super high or low, and cause all sorts of issues. There are two types of diabetes: type 1 and type 2.


Image of pancreas and insulin effects on glucose


Type 1 Diabetes:

The pancreas doesn't produce enough of the hormone insulin.

Blood glucose levels are uncontrollably high.

It is treated with insulin injections.


Type 2 Diabetes:

Insulin is produced, but the liver or muscle cells no longer respond to it.

People who are obese are more at risk.

It is controlled by limiting simple carbohydrates in one's diet and  taking more exercise.


Image of types of diabetes



In the following activity, you will describe how the body controls the levels of glucose in the blood.  

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