In: Biology
Explain how the processes of photosynthesis and aerobic cellular respiration are dependent on one another by identifying the molecules that cycle between them and where they are produced and consumed in the cycle.
• Photosynthesis and aerobic respiration are dependent on each
other.
• Products of photosynthesis act as substrate for aerobic
respiration and products of aerobic respiration act as substrate of
photosynthesis.
Photosynthesis -
• It occurs in chloroplast and forms sugar.
• In this process carbon dioxide and water act as substrates.
• Water is used for energy generation in light reaction of
photosynthesis and carbon dioxide is used for sugar formation in
dark reaction or calvin cycle in photosynthesis.
• Oxygen and sugar are products of photosynthesis.
• Oxygen is formed by photolysis of water and sugar is formed in
calvin cycle.
Aerobic Respiration :-
• It occurs in mitochondria mainly.
• Oxygen and sugar act as substrate for this process which are
products of photosynthesis.
• Oxygen is used in complete oxidation of sugar in respiration
process and carbon dioxide and water is formed.
• Carbon dioxide is formed at various stages of respiration and
water is formed in electron transport chain of mitochondria.
• This carbon dioxide and water now act as substrates of photosynthesis.