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Damm [24]
3 years ago
12

Which best describes how DNA fits inside a cell nucleus?

Biology
1 answer:
9966 [12]3 years ago
8 0

Answer:

DNA tightly coils around proteins and condenses into chromosomes, which fit in the nucleus.

Explanation:

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One pyruvate molecule will generate _______ molecules of CO2 after completing the citric acid cycle
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c) 3

Explanation:

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In glycolysis, a 3 carbon compound known as pyruvate is produced from glucose. Each glucose molecule produces 2 pyruvate molecules. Each pyruvate molecule then enters a complex known as Pyruvate dehydrogenase complex wherein the pyruvate molecule further undergoes oxidative decarboxylation to produce a 2 carbon compound known as Acetyl-CoA.

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The Acetyl-CoA then enters citric acid cycle or TCA or Kreb's cycle wherein this Acetyl-CoA and oxaloacetate are oxidized to produce CO₂ molecules in eight steps. Each glucose molecule is capable of producing six CO₂ after the completion of citric acid cycle. Since one glucose molecule produces 2 pyruvate molecules then it means <u>a pyruvate molecule will be able to produce three CO₂.</u>

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