Digestion

Question 1

Carbohydrates
Proteins
Lipids
Fibre
Vitamins and minerals
Water

Answer 1

Realeases energy
Helps with growth and repair and building muscle
Realeases energy
Vitamins and minerals-Different vitamins help with blood bones and nerves
Fibre-helps digest food
Water-helps with chemical reactions

Question 2

An unbalanced diet can lead to

Answer 2

Obesity, high blood pressure and diabetes
Starvation and vitamin deficiency

Question 3

Describe the process of digestion

Answer 3

1. Mouth. Teeth mechanically break down food. Amylase in saliva breaks down carbs.
   2.Oesophagus.carries food to stomach
   3.stomach contains hydrochloric acid and protease enzymes that break down food and kill bacteria
2. The liver makes bile to break down fat.
   5.The pancreas makes enzymes
3. The small intestine absorbs nutrients.
4. The large intestine absorbs water
   8.feces are stored in the rectum

Question 4

What aids food absorption in small intestine

Answer 4

Enzymes break down food into smaller molecules
So it can be absorbed through the gut lining into the blood

Question 5

How is small intestine specialised to carry out its function

Answer 5

Lining contain villi, which increase surface area
To increase absorption of food into blood