Respiration Flashcards
define metabolism
sum of all reactions in a cell or body
how is lactic acid removed
blood transports it to the liver and then it’s converted back to glucose
what is oxygen debt
the amount of oxygen needed after exercise to break down the lactic acid in muscle cells
what happens to muscles during long periods of activity
a build up of lactic acid leads to muscles becoming fatigued and don’t contract efficiently
how does the body supply muscles with oxygenated blood during exercise
-heart rate
-breathing rate
-increase in breathing volume
what is anaerobic respiration called in yeast cells
fermentation
word equation for anaerobic respiration in plant and yeast cells
glucose -> ethanol + carbon dioxide
word equation for anaerobic respiration in muscles
glucose -> lactic acid
word equation and balanced symbol equation of aerobic respiration
glucose + oxygen -> carbon dioxide + water
C6H12O6 + 6O2 -> 6CO2 + 6H2O
why do organisms need energy
-chemical reactions to build larger molecules
-muscle contraction for movement
-keeping warm
what is respiration
an exothermic reaction that occurs continuously in mitochondria of living cells to release energy from glucose
