Breathing and respiration (Biology)

Question 1

Aerobic respiration word equation

Answer 1

glucose + oxygen —-> carbon dioxide + water

Question 2

Breathing

Answer 2

muscle movement allowing the lungs to expand and contract

Question 3

ventilation

Answer 3

movement of air into / out of the lungs

Question 4

diaphragm

Answer 4

organ below the lungs that contract/ relaxes changing the size of the lungs

Question 5

Mucus

Answer 5

sticky liquid that traps dirt,dust and microorganisms

Question 6

cilia

Answer 6

Tiny hairs on cells that sweep mucus from the lungs into the gullet to be swallowed

Question 7

Gas exchange

Answer 7

The swapping of gases between the lungs and the blood

Question 8

diffusion

Answer 8

movement of particles from high concentration to low

Question 9

Alveoli

Answer 9

Little pockets on the lungs

Question 10

Adaptation for Alveoli

Answer 10

They increase the surface area leading to faster diffusion

Question 11

Red blood cells

Answer 11

Take in oxygen when it gets into the blood

Question 12

Arteries

Answer 12

Blood vessels that carry blood from the heart to the body

Question 13

Capillaries

Answer 13

Tiny blood vessels that arteries divide into

Question 14

Plasma

Answer 14

Liquid in the blood

Question 15

Tissue fluid

Answer 15

carries oxygen to the cells

Question 16

Veins

Answer 16

Carry blood to the heart

Question 17

When you exercise

Answer 17

Your muscles must release more energy so need more oxygen and glucose - your breathing rate and heart rate increases

Question 18

Lime water

Answer 18

turns cloudy in the presence of carbon dioxide

Question 19

Anaerobic respiration

Answer 19

Respiration that occurs in the cytoplasm of the cells when oxygen is not present during strenuous exercise

Question 20

Anaerobic respiration word equation

Answer 20

Glucose —-> lactic acid

Question 21

After strenuous exercise

Answer 21

lactic acid is taken to the blood then the liver and converted back to glucose