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rodikova [14]
3 years ago
9

_____ is a T-cell-specific adhesion molecule expressed before the expression of a functional T-cell receptor while the thymocyte

s are still in their double-negative stage of development
Biology
1 answer:
NARA [144]3 years ago
8 0

Answer:

CD2

Explanation:

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Some amino acids are both glucogenic and ketogenic. Explain the difference between the two types and why some amino acids can be
vesna_86 [32]

Answer:

From the point of view of the type of molecule that is obtained after the degradation of the hydrocarbon skeleton, amino acids can be classified as: glucogenic and ketogenic. The main difference between glucogenic amino acids and ketogenic amino acids is that glucogenic amino acids can be converted to pyruvate or other glucose precursors, while ketogenic amino acids can be converted to acetyl CoA and acetoacetylCoA.

Explanation:

Glucogenic amino acids are amino acids that break down to pyruvate, alpha-ketoglutarate, succinyl Co-A, fumarate, and oxaloacetate and are so named because the synthesis of glucose from these molecules is feasible. Both pyruvate and the Krebs cycle intermediates noted above can be converted to phosphoenolpyruvate and subsequently glucose through gluconeogenesis.Ketogenic amino acids are the amino acids that generate acetyl-CoA or acetacetyl-CoA and are called by this name because they can cause ketone bodies. Since mammals lack the proper enzyme system, these compounds can never be used as precursors for glucose biosynthesis. Of the twenty universal amino acids, fourteen are purely glucogenic and two are purely ketogenic (leucine and lysine). The remaining four (isoleucine, phenylalanine, tryptophan and tyrosine) are glucogenic and ketogenic simultaneously since a part of the hydrocarbon skeleton originates precursors for the biosynthesis of glucose (pyruvate or Krebs cycle intermediates) and the other part acetyl-CoA or acetacetyl -CoA.

5 0
3 years ago
Identify Three Solutions To Help Solve 3 Climate Issues
Dafna1 [17]

Answer:

1. Use less cars travel way less with them if youan use a bike or walk to try stop too much CO2 being produced

2. Use less papaer or recyle trees are being cut down for them wich break down habittats and prevents filtrating CO2

3.RECYLE recylimg is something everyone can do it helps stop polution, rubish being frown in the seas oceans and animals eating them

3 0
3 years ago
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Which chemical reaction would result in the greatest release of energy?
muminat
ATP + Oxygen --> ADP + P 
In this reaction, a phosphate group is being removed, which results in the most amount of energy being released. This reaction is part of the respiration reactions.
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Describe two areas in the world that use primarily renewable energy technologies. Describe the type of energy they use.
Margarita [4]

Answer: China and Brazil both use hydropower and are both two of the top countries in the world using renewable energies to power their nations.

Explanation: With china in first place and brazil in third, these two countries are among the top three nations who produce the most renewable energy, and they do this primarily with hydropower which harnesses energy from water currents and converts it into electricity.

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Bacteria reproduce by injecting their genes into other cells. Please select the best answer from the choices provided. T F.
mestny [16]

Answer:False, bacteria reproduces through binary fission. An as. exual process where cell divides into 2.

Explanation:

7 0
3 years ago
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