Blood Glucose and Diabetes

What is Blood Glucose and Diabetes?

Within Biology, which covers cells, the human body, genetics, evolution, plants and ecosystems: the science of living things, this topic explains Blood Glucose and Diabetes. Biology topics show how living things work, from the cell up to whole ecosystems, with models you can explore step by step.

Check that you can explain Blood Glucose and Diabetes in your own words and give one example from everyday life. If you can do that, you have understood the core idea.

Understanding Blood Glucose and Diabetes helps you explain how living things stay alive and respond to their surroundings, which is central to biology exams.

Blood Glucose and Diabetes in detail

Blood glucose is controlled by the pancreas. When it is too high after a meal, the pancreas releases insulin, which makes the liver and muscles take up glucose and convert it to glycogen for storage. When it is too low, the pancreas releases glucagon, which makes the liver convert glycogen back to glucose.

In type 1 diabetes, the pancreas does not produce enough insulin, so patients need insulin injections and must manage their diet. In type 2 diabetes, body cells no longer respond properly to insulin, and it is linked to obesity and managed with diet, exercise and medicines. This is an example of negative feedback.

How the interactive helps you understand Blood Glucose and Diabetes

Watch the growth curve in the interactive. Use any sliders or buttons it offers to change the values and see how the growth curve responds.

Before you change anything, predict the result. Then change one value at a time and check whether your prediction was right. This is a quick way to build a correct mental model of Blood Glucose and Diabetes.

Real-life uses and examples

• Structure a longer answer about Blood Glucose and Diabetes by moving from definition to example to consequence.
• Explain how Blood Glucose and Diabetes helps a living thing stay alive, using a plant or animal example.
• Connect Blood Glucose and Diabetes to health, food and medicine in everyday life.

Common mistakes to avoid

• Listing the steps of a process without saying how one step causes the next.
• Using everyday words, such as “energy” or “bad”, without their scientific meaning.
• Learning the definition without testing it. Use the quiz and the interactive to check that you can apply the idea.