Answer:
The overall strategy employed in the catabolism of the carbon skeletons of the 20 amino acids is conversion to citric acid intermediates such as acetyl-CoA
Explanation:
The breakdown of the different carbon skeletons of the 20 amino acids is strategically channelled towards the citric acid cycle. Six major products are obtained in the catabolism of the carbon chain of amino acids and these products all enter the citrc acid cycle. The six major products are acetyl-CoA, α-ketoglutarate, succinyl-CoA, fumarate, oxaloacetate and pyruvate.
The amino acids that are broken down completely into acetoacetyl-CoA and/or acetyl-CoA are said to be ketogenic since they yield ketone bodies in the liver.
The amino acids that are broken down into α-ketoglutarate, succinyl-CoA, fumarate, oxaloacetate and pyruvate can be converted to glucose and glycogen and are said to be glucogenic. Pyruvate can further be converted to either acetyl-CoA or oxaloacetate. Some amino acids though are both ketogenic and glucogenic, e.g. tryptophan, threonine.
<u>Potential energy</u> is the chemical energy stored in the chemical bonds of atoms and molecules.
<h3>What is potential energy?</h3>
Potential energy is the energy stored in the bonds (structural arrangement) of chemical compounds, such as atoms and molecules.
<h3>Characteristics of potential energy</h3>
- The potential energy that a molecule may have is due to the forces of attraction and repulsion with other molecules in its environment.
- An example is glucose, which stores chemical potential energy that the body, through metabolism, transforms into heat energy to maintain body temperature.
Therefore, we can conclude that potential energy is stored in the chemical bonds of molecules.
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The right answer for the question that is being asked and shown above is that: "b. Archaeopteryx fossils share traits with both birds and reptiles." Scientists claim this is evidence of a common ancestor. <span>Archaeopteryx fossils show that the animal had feathers like a bird.</span>
Because bacterial life cycle is very short it complete in 20 minutes to produce copies. secomdly bacterial genome is simple to be handle.
The virus known as Epstein-Barr virus primarily infects lymphocytes
<h3>What are Epstein-Barr viruses</h3>
Epstein- Barr viruses are viruses that causes mononucleosis. They are from the family Human gammaherpesvirus 4.
These viruses preferentially infects the human B- lymphocytes and may also infect the epithelial cells of the body.
Therefore, the virus known as Epstein-Barr virus primarily infects lymphocytes.
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