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raketka [301]
3 years ago
9

How do macromolecules cross the cell membrane

Biology
1 answer:
MariettaO [177]3 years ago
7 0
It could be active transport or passive transport
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For practice, type in the name of the set of positions occupied by the three oxygen atoms:
Andre45 [30]

the answer is Ozone contains three oxygen molecules :D

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Why is thinking on geologic time scales necessary for understanding evolution?
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The pyruvate dehydrogenase complex catalyzes the oxidative decarboxylation of pyruvate to form acetyl‑CoA. E 1 , E 2 , and E 3 a
FinnZ [79.3K]

Answer:

E1: Pyruvate dehydrogenase, TPP, oxidative decarboxylation reaction

E2: Dihydrolipoyl transacetylase, Lipoamide and Co-enzyme A, transacetylation reaction.

E3: Dihydrolipoyl dehydrogenase, FAD and NAD+, oxidation reaction

Explanation:

Pyruvate dehydrogenase is a multi-enzyme complex with 5 co-enzymes and 3 apo-enzymes:

Pyruvate dehydrogenase (E1) , which uses thiamine pyrophosphate (TPP) as as co-enzymes to catalyze oxidative decarboxylation of pyruvate to hydroxyethyl-TPP.

Dihydrolipoyl transacetylase (E2): which uses lipoamide and coenzyme A as co-enzymes to catalyse the transacetylation from TPP to Lipoamide to form acetyl lipoamide.

Dihydrolipoyl dehydrogenase (E3)​​ which uses FAD and NAD+ as co-enzymes to catalyze the oxidation of lipoamide

7 0
3 years ago
scientists have used mtDNA as a molecular clock to trace human evolution and early migration routes explain why mtDNA would be m
melisa1 [442]
An unknown mtDNA sample sample is matched to a sample of mtDNA that was found at the crime scene.<span> This is how mitochondrial DNA (mtDNA) typing is used in forensic science.</span>

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3 years ago
Heeeeeeeeeeeeeeeeeeeeeeeelp cuz due right nowwwww
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Answer:

A

Explanation:

The mountains will increase their elevation over time

Hope this helps :D Have a great day :3

8 0
3 years ago
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