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Tcecarenko [31]
2 years ago
9

4. (3 pts.) In aerobic respiration, oxygen is necessary to accept the final electrons at the end of

Biology
1 answer:
german2 years ago
3 0

Answer:

their body starts shutting down and this will cause slow and painful death

Explanation:

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QveST [7]

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indeed

Explanation:

5 0
3 years ago
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Ribosomes are the site where— are produced.
jolli1 [7]

Answer:

Ribosomes are the site where proteins are produced. Amino acids are coded for by triplet bases in RNA called codons

Explanation:

4 0
3 years ago
Which one of the following viruses is an RNA virus?
Artemon [7]

Explanation:

HIV virus is an RNA virus

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How did Hershey and Chase ""label"" viral DNA and viral protein so that they could be distinguished? Explain why they chose each
vlabodo [156]

Answer:

As DNA contain phosphorus in its structure in large amount, therefore, Harshey and Chase labeled DNA with radioactive phosphorus and because protein contains some amino acids which have sulfur so they labeled T2 bacteriophage protein with sulfur.

So after that they infected E.coli bacteria with radioactively labeled phages and after centrifugation, they have found that pellet which contains cells is showing the presence of radioactive phosphorus and supernatant which have T2 phage capsid protein showing the presence of radioactive sulfur.

Therefore by labeling viral protein and viral DNA they found that DNA is the genetic material not protein.

7 0
3 years ago
When egg white is heated, it hardens and is opaque. This cooking process cannot be reversed, but hard-boiled egg white can be di
marshall27 [118]

Answer:

Generally proteins are denatured at high temperature.Therefore when  the egg is hard boiled they are denatured since eggs are protein,  the 3-dimensional  structure of protein is lost, and it is replaces with tangled meshwork of polypeptide chains .This is because the  orderly arrangements of  disulphide bonds in proteins  are disrupted , which  results in the formation of inter chains bonds among   disulphide bonds, making the protein molecules to link together.This explains the reason for the 3-D structure disruption  and formation of  a macro molecule.

However,   the  addition of reducing agent ,  breaks the covalent disulphide bonds.   While detergent breaks the interchain bonds among the disulphide bonds.  (The noncovalent bonds),These combined effects untangled the  mesh networks of polypeptides formed, and reduces the hardened nature,

Explanation:

5 0
3 years ago
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