Unit 3 anaerobic and aerobic

Question 1

anaerobic occurs

Answer 1

when there is not enough oxygen for aerobic resperation such as during strenuous exercise

Question 2

aerobic occurs in

Answer 2

in the mitochondria of cells to transfer energy

-glucose is absorbed from the small intestine into the blood plasma and then diffuses into the cells

Question 3

how does oxgyen diffuse

Answer 3

it is breathed

and then it diffuses into the bloodstream

and then is carried by haemoglobin to the cells where it diffuses in

Question 4

how does carbon dioxide diffuse

Answer 4

diffuses out of the cells into the blood plasma it is transported to the lungs

where it diffuses into air sacs and is exhaled

Question 5

anaerobic respiration causes

Answer 5

muscles cramps due to the lactic acid being a toxic chemical

much less energy per glucose molecules released

Question 6

word equation for aerobic respiration is

Answer 6

glucose + oxygen —> carbon dioxide + water (+energy)

Question 7

word equation for anaerobic respiration is

Answer 7

glucose—> lactic acid (+energy)

Question 8

fermentation word equation is

Answer 8

glucose—> ethanol + carbon dioxide (+energy)