aerobic and anaerobic respiration. Flashcards
(25 cards)
what is respiration?
chemical process that releases the energy from within glucose.
what is breathing?
physical process that takes in oxygen to the lungs and removes carbon dioxide from the body.
what is the difference between respiration and breathing?
R) chemical.
B) physical.
what is the word equation for aerobic respiration?
glucose + oxygen → carbon dioxide + water (+energy)
what is the symbol equation for aerobic respiration?
C₂H₁₂O₆ +6O₂ → 6C0₂+6H₂0
where does respiration take place in cells?
mitochondria of every cell in the body.
what does respiration release and what sort of reaction is it?
releases energy from within glucose and is an exothermic reaction.
what is respiration carefully controlled by?
enzymes.
what is the anaerobic respiration word equation in animals?
glucose → Latic acid.
what is the anaerobic respiration word equation in plants and yeast?
glucose → ethanol + carbon dioxide.
in exercise what happens to the heart, breathing rate and breath volume and why?
increases to supply muscles with more oxygen and glucose for the increase in aerobic respiration.
during periods of vigorous activity the muscles may not be supplied with enough oxygen. what type of respiration takes place and where?
anaerobic respiration in the muscle cells.
what does using anaerobic respiration cause?
build up of latic acid and creates an oxygen debt.
what does lactic acid cause?
causes muscles to hurt and stops them from contracting efficiently.
what is yeast?
single-celled fungi.
how is yeast produced?
asexually.
creates a bud- this new cell eventually breaks away from parent cell.
what is the word equation for yeast fermentation?
glucose → ethanol + carbon dioxide + energy.
what is the symbol equation for yeast fermentation?
C₆H₁₂O₆ →2C₂H₅OH+2CO₂+210KJ.
an experiment was set up including a glass beaker, stopper, another boiling tube, and a glass tube that connected them both, one from the yeast in glucose solution and one going to the lime water: what is the purpose of having a layer of oil on top of the yeast?
stop oxygen getting to the solution.
an experiment was set up including a glass beaker, stopper, another boiling tube, and a glass tube that connected them both, one from the yeast in glucose solution and one going to the lime water: what was in the solution and why?
sugar. respire.
an experiment was set up including a glass beaker, stopper, another boiling tube, and a glass tube that connected them both, one from the yeast in glucose solution and one going to the lime water: what proves that carbon dioxide was produced?
bubbles are produced .
changes colour- cloudy.
an experiment was set up including a glass beaker, stopper, another boiling tube, and a glass tube that connected them both, one from the yeast in glucose solution and one going to the lime water: why does anaerobic respiration stop eventually?
runs out of energy glucose.
what does an aerobic respiration look like?
with oxygen.
glucose completely broken down.
more energy released.
Latic acid not produced.
muscles don’t fatigue.
normal breathing/ light exercise.
what does anaerobic respiration look like?
without oxygen.
glucose incompletely broken down.
less energy released.
Latic acid produced.
muscles fatigue.
vigorous exercise.
