Food studies revision questions

What are the three macronutrients?

Carbohydrates, Proteins and Fats

What is the main function of carbohydrates

Provide the body with energy

What is the main function of fats

Provide and store energy

Main function of proteins

Growth and repair

What are fats broken down into during digestion?

Fatty acids + glycerol

What are carbohydrates broken down into?

Glucose

What are proteins broken down into?

Amino acids

What is protein important for?

Building and repairing muscle tissue

What is complete protein?

Complete protein contains all essential amino acids

Why do carbohydrates contain less energy than fats?

Because fat has more chemical bonds

What is the benefits of fibre?

Fibre aids digestion and keeps you full (satiety)

What is the glycaemic index?

It measures how quickly a food spikes your glucose levels

What are our main energy sources?

Carbohydrates and fat

How does age affect one’s energy needs?

Because growing teens need more.

How does activity level affect one’s energy needs?

Because more movement means you need more energy.

How does body size/muscle mass affect energy needs?

Because being larger and having more muscle means you use more energy to move.

What is the most common cause of obesity?

Consuming more energy than what you burn over a long period of time

Why does having a healthy weight matter/

Because it reduces your risk of disease, such as type 2 diabetes and heart disease

What is type 2 diabetes?

High blood glucose due to insulin resistance

What are diseases linked to poor diet?

Type 2 Diabetes, heart disease and obesity

What is the purpose of the ADG?

To provide