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Luden [163]
3 years ago
7

During energy conversion some energy is always lost as

Biology
2 answers:
Gre4nikov [31]3 years ago
8 0

Answer:

Heat

Explanation:

fenix001 [56]3 years ago
7 0
Some energy is always lost as heat

hope that helps! :))
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Explanation:

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In photosynthesis what are the starting products
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Why do organisms without oxygen need to convert pyruvate to lactate?
IrinaK [193]

The question is incomplete. The complete question is:

Question: Why do organisms without oxygen need to convert pyruvate to lactate?

A) because pyruvate is toxic to the cells

B) in order to regenerate NAD+

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D) because lactate is needed to produce ATP

Answer:

B) in order to regenerate NAD+

Explanation:

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Glycolytic reactions use NAD+ as an electron acceptor and produce NADH. Therefore, a constant supply of NAD+ is required to sustain glycolysis. In absence of oxygen, ETC cannot occur and organisms convert pyruvate into lactate. Pyruvate is reduced in lactate and NADH serves as the electron donor. Thereby, lactate fermentation regenerates NAD+ to continue the process of glycolysis.

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3 years ago
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