Answer:
C. Aerobic respiration
Explanation:
Aerobic respiration occurs when oxygen is present
Anaerobic respiration occurs in the absence of oxygen. Anaerobic respiration is usually associated with fermentation process (eg Alchohol production)
The main difference between aerobic and anaerobic respiration is that aerobic respiration needs oxygen to occur, while anaerobic respiration does not. Option C. Only aerobic respiration requires oxygen.
Aerobic and anaerobic respiration occurrence depends on the presence or absence of oxygen. Option C. Only aerobic respiration requires oxygen.
Cellular respiration follows two ways, which depend on the presence or absence of oxygen, and both of them begin with the process of glycolysis, which occurs in the cytoplasm and does not need oxygen to occur.
This type of respiration occurs in the presence of free oxygen. It involves a series of reactions by which pyruvic acid (product of glycolysis) turns into CO₂ and H₂O, producing many ATP molecules.
Aerobic Respiration occurs in mitochondria, and takes place in two steps or stages: Krebs cycle and electron transporter chain.
Glycolysis and Krebs cycle produce electrons. These electrons then travel along the electron transporter chain while releasing energy, and ATP is produced.
This is the type of respiration that occurs in the absence of free oxygen.
It is also a series of reactions by which the cell produces 2 ATP molecules by using pyruvate (product of glycolysis).
Anaerobic respiration can occur in two ways: lactic fermentation and alcoholic fermentation.
The whole anaerobic process occurs outside the mitochondria.
Options:
A). Only aerobic respiration involves fermentation. FALSE.
Anaerobic respiration involves fermentation.
B). Only anaerobic respiration occurs in the mitochondria. FALSE.
Aerobic respiration occcurs in mitochondria and anaerobic respiration occurs in the cytoplasm.
C). Only aerobic respiration requires oxygen. TRUE
Anaerobic respiration does not need oxygen.
D). Only anaerobic respiration produces carbon dioxide. FALSE
Alcoholic fermentation produces CO₂ too.
The correct option is C. Only aerobic respiration requires oxygen.
You can learn more about aerobic and anaerobic cellular respiration at
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