Which of the following statements accurately describes the relationship between
ID: 206469 • Letter: W
Question
Which of the following statements accurately describes the relationship between photosynthesis and cellular respiration? (1 point) a) Photosynthesis uses light energy to produce ATP and NADPH - molecules that are subsequently used in the production of hexose sugars. Respiration polymerizes hexose sugars to produce polysaccharides. Photosynthesis uses light energy to produce ATP and NADPH - molecules that are subsequently used in the production of hexose sugars. Respiration breaks down a specific hexose sugar to produce ATP Photosynthesis uses light energy to produce ATP and NADPH - molecules that are subsequently used in Citric Acid Cycle. The Citric Acid Cycle produces the NADH and FADH2 that are used in respiration. Photosynthesis uses light energy to produce ATP and NADPH. Respiration breaks down ATP and NADPH to release energy Photosynthesis involves the oxidation of glucose. Respiration involves the reduction of b) c) d) e)Explanation / Answer
Answer : b
Photosynthesis is a anabolic process which involves getting energy (ATP) from sunlight to produce simple or complex carbohydrates such as glucose and cellulose.
Cellular respiration is a catabolic process which involves breaking down of substrates like carbohydrates, proteins and fats to release or get energy (ATP) from it.
Therefore, both are just the opposite reactions which means that products of one reaction are reactants of another reaction.
CO2 is reduced to form glucose or other sugars in the photosynthesis process whereas in the cellular respiration, glucose is oxidized to produce ATP and CO2 is liberated.
Citric acid cycle is part of catabolic reaction where glucose is first oxidized to pyruvate or lactate and these end products are further oxidized in citric acid cycle to release CO2, FADH2 and NADH. Finaly, ATP is produced from FADH2 and NADH.
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