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CaHeK987 [17]
4 years ago
5

Hi have you guys been?

Biology
2 answers:
balu736 [363]4 years ago
7 0

Answer:

struggling but it is what it is

Explanation:

Eva8 [605]4 years ago
5 0

Answer:

good

Explanation:

i had a great day :)

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Why must the electron transport chain proteins and molecules be embedded in a membrane?
Lynna [10]

Answer:

because that way protons can be compartmentalized and form a gradient.

6 0
2 years ago
What other cofactors or cosubstrates does the pyruvate dehydrogenase complex require to function?
Anastasy [175]

Answer:

Pyruvate dehydrogenase (PDH) is a very high molecular weight mitochondrial multienzyme complex.It includes three types of enzymes that need the participation of five coenzymes to develop their activity, three of them catalytic cofactors (TPP, lipoamide, FAD) and two stoichiometric (NAD and CoA). Two enzymes involved in regulating its activity are also part of the enzyme complex.

Explanation:

PDH is a multienzyme complex formed by multiple copies of three catalytic proteins (E1, E2 and E3) and other structural and regulatory (phosphatase, kinase). It requires, in turn, different coenzymes (thiamine, lipoic acid) for its proper functioning. Given its enormous importance at a key point in energy production, it is highly regulated. E1 depends on thiamine pyrophosphate and catalyzes 2 stages: 1) decarboxylation of pyruvate, forming a hydroxyethyl-thiamine-diphosphate intermediate; 2) reductive acetylation of the lipoyl group, covalently linked (amide) to E2. E2 catalyzes the transfer of the acetyl group to CoA (3). E3 regenerates the oxidized lipoyl, transferring its electrons first to FAD and then to NAD.

5 0
3 years ago
mass can be measured with a triple beam balance in units of ______. a. grams b. newtons c. cubic centimeters d. millimeters
Anestetic [448]
The answer is
(a)-grams
6 0
4 years ago
What is the unknown substance? Be sure to explain how you know
Lera25 [3.4K]

Answer:

The last one

Explanation:

All other substances use their chemical name, not a generic name like the last one

3 0
3 years ago
Three kinds of _________ molecules carry out genetic instructions for the production of proteins?​
Alexxandr [17]
Answer:

There are three types of RNA involved in protein synthesis:
messenger RNA (mRNA)
transfer RNA (tRNA)
ribisomal RNA (rRNA).

Explanation:

All three of these nucleic acids work together to produce a protein. The mRNA takes the genetic instructions from the nucleus to the cytoplasm, where the ribosomes are located.
7 0
3 years ago
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