CXC SCIENCE

Question 1

Photochemical Reactions

Answer 1

Chemical reaction that begins by the absorption of energy in the form of light

Question 2

Photosynthesis Reaction

Answer 2

Co2 + water (light) + glucose + Oxygen

Question 3

Food Groups

Answer 3

Carbohydrates, Minerals, Protein, Vitamins

Question 4

PEM

Answer 4

Protein energy malnutrition

Question 5

Digestion

Answer 5

Breakdown of insoluble foods

Question 6

Absorption

Answer 6

Food is absorbed into the blood and converted into energy

Question 7

Assimilation

Answer 7

The absorption and digestion of food

Question 8

Egestion

Answer 8

Excreting material from a cell

Question 9

Respiration

Answer 9

Is the process in which glucose and oxygen combine together to release energy and Co2 in our cells

Question 10

Aerobic respiration

Answer 10

Doesn’t require oxygen

Question 11

Anaerobic respiration

Answer 11

Requires oxygen

Question 12

Causes of air pollution

Answer 12

Carbon dioxide, sulphur dioxide and carbon monoxide

Question 13

Transpiration

Answer 13

The way in which water is lost through a plant from the stomata

Question 14

Arteries

Answer 14

Carry blood away from the heart

Question 15

Veins

Answer 15

Carry blood back to the heart

Question 16

Capillaries

Answer 16

Links arteries and veins