Nutrition, digestion and excretion

Question 1

What are carbohydrates?

Answer 1

To provide energy

Eg; cereals, bread, pasta, rice and potatoes.

Question 2

What is protein?

Answer 2

For growth and repair.

Eg; fish, meat, eggs, beans and dairy products

Question 3

What is lipids?

Answer 3

Keep our bodies warm and provide short burning energy.

Eg; butter, oils and nuts.

Question 4

What are minerals?

Answer 4

Needed in small amounts to maintain healthy diet.

Eg; salt, milk and liver

Question 5

What are vitamins?

Answer 5

Needed in small amounts to maintain health

Eg; fruit and veg

Question 6

What is dietary fibre?

Answer 6

To provide roughage to help keep the food moving through the gut.

Question 7

What is water?

Answer 7

Needed for cell and body fluids

Question 8

Where does the digestive system start and end?

Answer 8

Mouth to anus

Question 9

What does the digestive system do?

Answer 9

Absorbs food and uses it for are bodies

Question 10

Stages of digestion

Answer 10

Food digested in the mouth, stomach and small intestines.
Digestive food is absorbed into the bloodstream in the small intestine
Excess water is absorbed back into are bodies in the large intestines
Undigestiged food exits through the anus.

Question 11

What are seven kinds of nutrients?

Answer 11

Carbohydrates, proteins, lipids, minerals, vitamins, dietary fibre and water.