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zhuklara [117]
3 years ago
10

Need help on this one please

Biology
1 answer:
DanielleElmas [232]3 years ago
8 0

Answer:

the last one house cats lions and tigers belong to the same class abd and family

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An element is also a pure substance. The reason for this is because an element contains only one type of particle.

Option A is correct

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When oxygen is plentiful inside a skeletal muscle cell, what happens to the pyruvic acid that is formed during glycolysis?
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d. it diffuses into mitochondria to be broken down to generate ATP

Explanation:

When enough oxygen is available in the muscle cells, pyruvate produced by glycolysis enters the mitochondrial matrix. Once inside the mitochondria, pyruvate is decarboxylated into acetyl CoA. The reaction is catalyzed by the enzyme complex pyruvate dehydrogenase. Acetyl CoA then enters a sequence of reactions called Kreb's cycle and is broken down into CO2 and H2O. The energy released during these reactions is stored in the form of NADH and FADH2.

The NADH and FADH2 are oxidized by giving their electrons to O2 via electron transport chain. During this oxidation, the proton concentration gradient is generated across the inner mitochondrial membrane which in turn drives the process of ATP synthesis.

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Arte-miy333 [17]

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C. Early childhood

Explanation:

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