Biology

Question 1

Iodine

Answer 1

Starch (presence)

→ orange-brown to blue-black

Question 2

Biuret Solution

Answer 2

Protein

→ Blue to violet

Question 3

Ethanol

Answer 3

Lipids

→ Cloudy

Question 4

Benedict’s solution

Answer 4

Reducing sugar

→ Orange/red

Question 5

Carbohydrates

Answer 5

Energy

Question 6

Fats

Answer 6

Energy and storage

Question 7

Protein

Answer 7

Growth and repair

Question 8

Fibre

Water

Answer 8

Prevent constipation

Question 9

Minerals

Answer 9

Maintain health

Question 10

Vitamins C

Answer 10

Skin, Hair, Gums, bones

Question 11

Vitamin D

Calcium

Answer 11

Strong bones and teeth

Question 12

Iron

Answer 12

Blood (pigment)

Question 13

Vitamin D deficiencies

Answer 13

Rickets (sunlight)

Question 14

Iron deficiency

Answer 14

Anaemia

Question 15

Coronary Heart Disease

Answer 15

Fat deposits build up in arteries and reducing the flow of blood to the heart.

Question 16

Obesity

Answer 16

Extra energy stored as fat

–> Heart disease and diabetes 糖尿病

Question 17

Scurvy

Answer 17

Lack of Vitamin C

• -> Dark spots on the skin
• -> Bleeding gums

Question 18

Chemical Digestion

Answer 18

Large, insoluble –> Small, soluble

Question 19

Absorption

Answer 19

Intenstine –> Blood

Question 20

Assimilation

Answer 20

Movement of digested food molecules into the cells

Question 21

Egestion

Answer 21

Passing out of food that is not being digested. 排泄

Question 22

Amylase

Answer 22

Produced in mouth and pancreas

Secreted in the alimentary canal and the first part of the small intestine

Question 23

Protease

Answer 23

Protein into amino acids

Stomach and small intestine

Question 24

Lipase

Answer 24

Fats into fatty acids and glycerol

Produced in pancreas and secreted into small intestine (duodenum)

Question 25

Bile

Answer 25

Produced in the liver.

Stored in gallbladder.