Respiration + Gas Exchange

Question 1

aerobic respiration

Answer 1

glucose + oxygen > carbon dioxide + water (+ATP)

Question 2

anaerobic respiration in animals

Answer 2

glucose + lactic acid (+ATP)

Question 3

why do we respire?

Answer 3

in order to create energy (ATP) used to keep your body going

Question 4

anaerobic respiration in plants, fungi, microorganisms

Answer 4

glucose > ethanol + carbon dioxide (+ATP)

Question 5

what does ATP do?

Answer 5

transfers energy from the breakdown of food molecules to cell processes

Question 6

difference between aerobic and anaerobic

Answer 6

• only aerobic uses oxygen
• anaerobic is only used in addition to aerobic when you can’t get enough oxygen to muscles (exercise)
• aerobic is more efficient and produced higher amounts of ATP
• anaerobic is less efficient and produces less ATP
• waste products different
• in aerobic glucose is fully broken down, anaerobic is only partially broken down

Question 7

anaerobic respiration in yeast

Answer 7

fermentation

Question 8

what is EPOC?

Answer 8

excess post exercise oxygen consumption - when additional oxygen is needed after prolonged exercise because many processes in body need it to return to resting state and to break down lactic acid that may have formed through anaerobic

Question 9

breathing rate during exercise

Answer 9

increases because more oxygen is required to supply muscles to respire aerobically (efficient) and CO2 as a product of aerobic needs to be removed

Question 10

heart rate during exercise

Answer 10

increases because oxygen and glucose need to be supplied faster and in larger amounts to cells to produce energy. increased CO2 as a product of aerobic needs to be removed