Respiration

Created by

Mee Chan

Cards (22)

what type of reaction is respiration
chemical reaction -> exothermic
when does respiration occur
happens continuously
what is respiration
process of repeating energy from breaking down glucose
what do we need respiration for
chemical reactions to build larger molecules
movement
keeping warm
what two ways can respiration occur
aerobic (with oxygen)
anaerobic (without oxygen)
is aerobic or anaerobic more efficient and why
aerobic
as it can produce the most energy
what's the word equation for respiration
glucose + oxygen -> carbon dioxide + water + (energy)
what's the symbol equation for respiration
C6H1206 + 6O2 --> 6CO2 + 6H20 + (Energy)
when does anaerobic respiration take place
during very little oxygen
why does anaerobic respiration produce less energy
doesn't use oxygen to break down glucose
so only partially breaks glucose down
what's the word equation for anaerobic respiration
Glucose --> Lactic Acid + (Energy)
describe the effect of lactic acid on muscles
it can build up -> becoming painful -> leading to cramps
what is oxygen debt
amount of oxygen required to break down lactic acid that has build up in the muscles
how can we repay oxygen debt  
by breathing rapidly
what is repaying the oxygen debt
process of breaking down lactic acid
why do we continue to breathe heavily after exercise
as we're repaying the oxygen debt
to take in enough oxygen
by breaking down lactic acid into CO2 + H2O
explain why rate of respiration increases as exercise intensity increases
when intensity increases
need more energy which is normally provided by respiration
so needs an increased rate of respiration to take in more oxygen
give the word equation for fermentation
glucose -> ethanol + carbon dioxide
name the gas that makes dough rise
CO2
what is ethanol
pure alcohol
what is ethanol used for
to make alcoholic drinks
explain why yeast is used to make bread
as yeast produces CO2 which can make dough rise