Welcome to the Quiz!
This quiz contains 12 questions from a mix of 1 subtopics.
Which of the following is true about anaerobic respiration?
it occurs only in the mitochondria
it yields more ATP than aerobic respiration
it requires oxygen
it acts as an emergency measure for ATP production when oxygen levels are low
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Which of the following are difference(s) between aerobic and anaerobic respiration?
(Select all that apply)
aerobic respiration includes the link reaction, Krebs cycle, and oxidative phosphorylation
anaerobic respiration requires oxygen
anaerobic respiration occurs only in the cytoplasm
aerobic respiration yields less ATP per glucose molecule
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Which of the following organisms cannot survive in the presence of oxygen?
obligate aerobes
eukaryotic cells
obligate anaerobes
facultative anaerobes
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In which organisms can alcohol fermentation occur?
(Select all that apply)
animals
yeasts
plants
all of the above
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In which organisms does lactic acid fermentation occur?
(Select all that apply)
animals
yeasts
plants
all of the above
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What does NOT happen during lactic acid fermentation?
lactic acid can be oxidised back to pyruvate
pyruvate accepts a hydrogen from reduced NAD, catalysed by lactate dehydrogenase
lactic acid is formed, and NAD is regenerated
lactic acid is reduced to form glucose
lactic acid may be stored as glycogen
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Why can't oxidative phosphorylation and the Krebs cycle continue in anaerobic conditions?
there is not enough glucose available
the enzymes required for these processes are not present
all the FAD and NAD will be reduced and cannot accept protons and electrons
the mitochondria are not functioning properly
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Which of the following is a consequence of excessive anaerobic respiration in muscle tissue?
accumulation of lactic acid
cramp and muscle fatigue
reduced pH affecting enzymes
all of the above
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Which of the following is true about facultative anaerobes?
they depend on oxygen to synthesise ATP
they can only perform anaerobic respiration
they can switch between aerobic and anaerobic respiration depending on oxygen availability
they cannot survive in the presence of oxygen
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What is the approximate yield of ATP per glucose molecule in anaerobic respiration?
2 ATP
16 ATP
32 ATP
4 ATP
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Which of the following is true about obligate aerobes?
they cannot survive in the presence of oxygen
they can switch between aerobic and anaerobic respiration
they can only perform anaerobic respiration
they depend on oxygen to synthesise ATP
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What happens to lactic acid produced during lactic acid fermentation in mammals?
(Select all that apply)
it is removed as a waste product
it is stored as glycogen
it is oxidised back to pyruvate to generate more ATP
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