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Inga [223]
4 years ago
6

What is the vasa vasorum and what role does it play?

Biology
1 answer:
KengaRu [80]4 years ago
3 0
The vasa vasorum is a network of small blood vessels that supply the walls of large blood vessels, such as the aorta and vena cava.
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Where the lack of a natural predator in yellowstone national park has resulted in the overpopulation of bison, deer, and elk?
Grace [21]
I dont understand what you are asking please retry asking the question thanks
7 0
3 years ago
Which is an SI derived unit measurement?<br><br>0.56 kg<br>01.10 m<br>2730K<br>02.5 N​
balandron [24]

Answer:

02.5 N​

Explanation:

02.5 N​ is a derived unit of measurement.

A derived unit is one that is obtained by combining two or more fundamental units.

                    Force = mass x acceleration

                The unit of mass = kg

                                   acceleration = m/s²

Combining the two;          kg x m/s²  = kgms²

          1N = 1  kgms²

kg, m, k and N are fundamental particles

         

5 0
3 years ago
"DNA denatures at a higher temperature than does protein, yet its structure depends on relatively weak hydrogen bonds. Why the d
Reika [66]

The option are not given and the options are:

Proteins are denatured by breaking covalent bonds.

Linear molecules like DNA are inherently stable.  

Individual hydrogen bonds may be weak, but DNA structure is stabilized by many thousands or millions of these bonds - far more than found in proteins.

The statement is incorrect; it actually takes far more energy to denature proteins than it does to denature DNA.

Answer:

The correct answer is- Individual hydrogen bonds may be weak, but DNA structure is stabilized by many thousands or millions of these bonds - far more than found in proteins.

Explanation:

Proteins become denatured when it looses its three-dimensional structure. Disulfide bond and hydrogen helps in stabilizing the three-dimensional structure of proteins and if these bonds break due to any factor protein lost its structure and function.

DNA is made up of a large amount of hydrogen bond because in AT base-pairing two hydrogen bonds are required and in GC base pairing three hydrogen bonds are required. Therefore it can be concluded that as more hydrogen bonds stabilizes DNA than protein its melting temperature is higher than protein.

3 0
3 years ago
Describe the connection between glycerol, fatty acids and triglycerides.
Leya [2.2K]
<h2>Answer:</h2>

<h3>In a fat molecule, the fatty acids are attached to each of the three carbons of the glycerol molecule with an ester bond through the oxygen atom. During the ester bond formation, three molecules are released. Since fats consist of three fatty acids and a glycerol, they are also called triacylglycerols or triglycerides.</h3>
6 0
3 years ago
Telomerase activity may decline with old age and this could explain why cells lose their ability to divide after many replicatio
Bumek [7]

It is true that telomerase activity declines with old age which explains why cells lose their ability to divide after many replications.

Telomeres are DNA–protein complexes found at the ends of each chromosome they contain repetitive sequences of DNA. Telomeres protect the genome from nucleic bases degradation, unnecessary recombination, repair, and prevent the fusion of chromosomes. Telomeres, therefore, play a vital role in preserving the information in our genome.

Telomeres shorten with every consecutive DNA replication cycle limiting the number of cell divisions a cell can undergo, Telomeres act as a tumor suppressor by halting the replication of cells which contains several mutations after many division cycles.

To learn more about tumor suppressors here

brainly.com/question/16188646

#SPJ4

6 0
2 years ago
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