food and nutrition

Question 1

What are the 2 main nutrients that can provide energy?

Answer 1

Carbohydrates and lipids (fats and oils)

Question 2

What nutrient is used for growth and repair?

Answer 2

proteins

Question 3

Which 2 nutrients are used for keeping you healthy?

Answer 3

Vitamins and minerals

Question 4

is fibre a nutrient?

Answer 4

No

Question 5

State the function of carbohydrates

Answer 5

Your main source of energy.

Question 6

State the function of lipids

Answer 6

1. provide you with a store of energy.
2. keep you warm
3. protects organs like your kidneys from damage

Question 7

State the 2 functions of proteins

Answer 7

1. repair body tissues
2. make new cells for growth

Question 8

List 4 ways in which you lose water from the body

Answer 8

1. sweat
2. tears
3. urine
4. exhaling

Question 9

Test for starch, and colour if the food contains it

Answer 9

iodine, dark blue

Question 10

test for lipids, and colour if the food contains it

Answer 10

ethanol, whitish and cloudy

Question 11

test for sugar, and colour if the food contains it

Answer 11

benedict’s solution, orange-red

Question 12

test for protein, and colour if the food contains it

Answer 12

copper sulphate and sodium hydroxide, purple

Question 13

State the unit that energy in food is measured in.

Answer 13

Joules (j)

Question 14

What happens to the excess energy if you burn less calories than you intake them?

Answer 14

you gain more body mass and is stored as fat

Question 15

what is a calorie

Answer 15

the amount of energy required to raise the temperature of 1 kg of water by 1°C