Food & Biological Molecules

Question 1

Carbohydrates

Answer 1

Broken down for respiration to release energy

eg. Fruit, pasta and bread

Question 2

Lipids

Answer 2

Long term energy store and for insulation

eg. Cheese, nuts and butter

Question 3

Protein

Answer 3

For building new cells and repairing damaged cells

eg meat, fish and eggs

Question 4

Vitamin A

Answer 4

A: Vision, growth

Eg. Eggs, liver, fish oil

Question 5

Vitamin C

Answer 5

For healthy immune system

eg. Citrus and some green vegetable

Question 6

Vitamin D

Answer 6

Keep bones, teeth and muscles healthy

eg. fish, cheese, eggs

Question 7

Minerals -Calcium

Answer 7

Bone and teeth health

milk, cheese

Question 8

Minerals - Iron

Answer 8

Make haemoglobin in red blood cells

eg. red meat

Question 9

Fiber

Answer 9

Keep the digestive system working and reminding us to use the toilet
eg. rice and pasta

Question 10

Water

Answer 10

Dissolve nutrients and form cells

eg. water, or fruit

Question 11

Night blindness

Answer 11

Vitamin A deficiency

Question 12

Scurvy - bleeding gums and wounds that don’t heal

Answer 12

Vitamin C deficiency

Question 13

Rickets - softening of bones

Answer 13

Vitamin D deficiency or Calcium deficiency

Question 14

Anaemia - reduction of red blood cells, leading to people being comestired

Answer 14

Iron deficiency

Question 15

Kwashiorkor - swelling of abdomen, wasting muscles. thinning hair and loss of teeth

Answer 15

Protein deficiency

Question 16

Protein test

Answer 16

Biuret - blue to lilac/purple

requires shaking

Question 17

Test for the presence of Fat

Answer 17

Ethanol + water - clear to cloudy

Question 18

Monomer of carbohydrate

Answer 18

Glucose - monosaccharides

Question 19

Monomer of protein

Answer 19

amino acid - peptides

Question 20

Dimer of carbohydrate

Answer 20

Disaccharides - maltose

Question 21

Dimer of protein

Answer 21

Dipeptides