Carbohydrates
Science: KS3, topic 1.4.6
Carbohydrates
Carbohydrates are an important part of a healthy, balanced diet. Carbohydrates in the body are used for a quick release of energy.
Function
- Carbohydrates are a quick source of energy for the body.
- Carbohydrates are used in the body to control blood glucose and insulin levels.
- Carbohydrates are needed to stay active.
Description
- Carbohydrates are broken down into simple sugars.
- Simple sugars spread through the body in the blood.
- Carbohydrase enzymes use hydrolysis to break down carbohydrates.
- Hydrolysis uses water to break the large insoluble molecule into soluble molecules.
- For example, starch-based foods are rich in carbohydrates.
- Starch is broken down into simple sugars called glucose and fructose.
Carbohydrate-rich diet
- Foods rich in carbohydrates include:
- Potatoes
- Rice
- Pasta
- Cereal
Test yourself on Carbohydrates
What are carbohydrates broken down into?
What are the simple sugars that starch is broken down into called?
Why does eating rice give the body a quick burst of energy?