Key Terms — Human Gas Exchange And Respiration

Question 1

Exothermic

Answer 1

Releases thermal energy

Question 2

Oxygen debt

Answer 2

Volume of oxygen pan needed to completely break down lactic acid

Question 3

Hydrogen carbonate indicator

Answer 3

Orange to yellow with high CO2 content
To purple if low CO2 content

Question 4

Respiration

Answer 4

Release energy from food

Question 5

Breathing

Answer 5

Sir moving in and out of lungs 4 gas exchange

Question 6

Larynx

Question 7

C-shaped rings of cartilage

Answer 7

X close when bent

Question 8

Trachea

Question 9

Bronchi

Question 10

Bronchioles

Question 11

Alveoli

Answer 11

Air sac

Question 12

Thorax

Question 13

Ribcage

Question 14

Diaphragm

Question 15

Intercostal muscles

Question 16

Nicotine

Answer 16

Addictive
Makes you alert

Question 17

Tar

Answer 17

Brown sticky
Contains many chemicals inc carcinogen (cancer)

Question 18

Carbon monoxide

Answer 18

Irreversibly binds to haemoglobin
Less oxygen bound
Less aerobic respiration

Question 19

Bronchitis

Answer 19

Cilia destroyed by heat
X waft mucus up
Bacteria grows in mucus
Infection and inflammation of bronchioles

Question 20

Emphysema

Answer 20

Walls of alveoli becomes weak and thing
Bronchitis causes coughing which burst them
SA decreased
Less O2 diffusion
Less resp less ATP
Pant

Question 21

Lung cancer

Answer 21

Tar contains carcinogen which causes mutation
Lung cells divides out of control, cancer
Difficulty breathing (blockage),
Spread unless destroyed

Question 22

Coronary heart disease

Answer 22

Fatty deposit block
Less glucose and oxygen
Anaerobic
Lactic acid toxic