B11- RESPIRATION

Cards (15)

Cellular respiration
Rhythmic action that occurs continuously in the mitochondria of living cells to release energy
Aerobic respiration
Uses oxygen
Anaerobic respiration 
Does not use oxygen
Aerobic respiration 
Glucose + oxygen -> carbon dioxide + water
Anaerobic respiration
Glucose -> lactic acid
Anaerobic respiration in yeast cells
Glucose -> ethanol + carbon dioxide
Aerobic respiration 
Releases more energy per glucose molecule than anaerobic respiration
Anaerobic respiration in yeast cells is called fermentation
During exercise 
Heart rate, breathing rate, and breath volume increase to supply muscles with more oxygenated blood
Lactic acid builds up in muscles during anaerobic respiration
Muscles become fatigued and stop contracting efficiently during long periods of activity
Oxygen debt
The amount of oxygen the body needs after exercise to react with the accumulated lactic acid and remove it from cells
Removing lactic acid from the body 
Lactic acid in muscles -> transported to liver -> converted back to glucose
Metabolism 
The sum of all the reactions in a cell or the body
what happens to muscles during long periods of time
muscles become fatigued and stop contracting efficiently