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Which of the following is an example of catabolism?
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7. Energy and Metabolism
Introduction to Metabolism
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In the context of metabolism, what is meant by the term 'metabolic water'?
A
Water used as a solvent in metabolic reactions
B
Water consumed during the process of photosynthesis
C
Water produced as a byproduct of cellular respiration
D
Water absorbed from the environment by osmosis
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Begin by understanding the concept of metabolism, which refers to all chemical reactions that occur within living organisms to maintain life.
Recognize that cellular respiration is a key metabolic process where cells convert biochemical energy from nutrients into adenosine triphosphate (ATP), releasing waste products.
Identify that during cellular respiration, specifically in the electron transport chain, oxygen is used to accept electrons, which leads to the formation of water as a byproduct.
Understand that 'metabolic water' refers to this water produced internally during cellular respiration, not water consumed or absorbed from external sources.
Clarify that metabolic water is significant for organisms that live in arid environments, as it contributes to their water balance without relying solely on external water sources.
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