Gas Exchange And Respiration

Question 1

What is respiration

Answer 1

Enzyme controlled chemical reaction that releases energy

Question 2

Anaerobic respiration in animals

Answer 2

Glucose —> lactic acid + energy

Question 3

Anaerobic respiration in plants and microorganisms

Answer 3

Glucose —> ethanol + carbon dioxide + energy

Question 4

Aerobic respiration

Answer 4

Oxygen + glucose —> carbon dioxide + water + energy

Question 5

Hydrogen carbonate indicator

Answer 5

Red when CO2 conc is low
Yellow when CO2 conc is high

Question 6

Oxygen debt

Answer 6

Volume of oxygen needed to completely oxidize lactic acid

Question 7

Oxygen debt formula

Answer 7

Oxygen + lactic acid —> carbon dioxide + energy

Question 8

What is Breathing

Answer 8

The mechanism that moves air into and out of the lungs. Oxygen can move into the blood and waste carbon dioxide removed.

Question 9

Aerobic respiration symbol equation

Answer 9

6O2 + C6H12O6 —> 6CO2 + 6H2O

Question 10

function of Goblet cells

Answer 10

Produce mucus and creates a protective mucus layer

Question 11

Function of ciliated cells

Answer 11

Transport mucus through the air ways using tiny hairs (cilia)

Question 12

What causes a smokers cough

Answer 12

Smoking damages cilia so to get rid of mucus and dirt you have to cough it up

Question 13

Carcinogenic

Answer 13

Cancer causing

Question 14

Define Diffusion

Answer 14

The movement of particles from an area of higher conc to an area of lower conc

Question 15

What effect does carbon monoxide have

Answer 15

CO binds to haemaglobin in RBC irreversibly instead of O2 . Heart rate increases because it has to pump more blood to get the same amount of oxygen around the body. Leads to increased blood pressure and heart disease

Question 16

What is emphysema

Answer 16

Smoking damages lining of walls of the alveoli and decreases the SA for gas exchange. This means less oxygen absorbed so can cause wheezing, coughing, shortness of breath, chest infections