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trapecia [35]
3 years ago
8

Children who experience catastrophic death often exhibit a fatalistic attitude that contrasts wif teh attitude of children whose

death experiences occur in more benign circumstances
Biology
1 answer:
kogti [31]3 years ago
5 0
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Briefly outline the steps involved in glycogen synthesis and breakdown and explain the regulatory mechanism involved in glycogen
Elenna [48]

Answer:

Glycogen is synthesized and degraded by different pathways, which provide greater flexibility for energy production through its degradation or for storage in its synthesis and thus maintain control of both metabolic pathways.

Explanation:

Synthesis and degradation pathways:

1º.- activation of glucose units at UDP-glucose.

UDP-glucose is an activated form of glucose, which is formed in a reaction catalyzed by UDP-glucose, which is formed in a reaction catalyzed by UDP-glucose pyrophosphorylase. This reaction is an example of biosynthetic reactions that are directed by the hydrolysis of pyrophosphate (PPi-2Pi).

Many biosynthetic reactions are directed by the hydrolysis of pyrophosphate, which catalyzes pyrophosphate hydrolase or pyrophosphatase, and is very favorable thermodynamically.

2nd.- polymerization or addition of glucose units to glycogen. Two steps: addition and branching.

 UDP-glucose acts as the giver of glucose units for glycogen synthesis. Glucose transfer

from the UDP-glucose to a growing glycogen chain is catalyzed by glycogen synthase.

A branching enzyme [amyl (1,4 -> 1,6) -transglucosidase], moves a chain of about seven glucose residues, to form

bonds (α1-> 6) at the branching points.

To start glycogen synthesis, glycogen synthase is only effective when it is linked to glycogenin. Glycogenin is

an oligosaccharide carrier protein formed by glucose units with linkages (α1-> 4).

6 0
3 years ago
During the replication of DNA, where are bonds broken?
Nady [450]
During DNA replication, the hydrogen bonds must be broken between the complementary nitrogenous bases in the DNA double helix
7 0
3 years ago
As we go from kingdom to species, what happens to the groups within each level of organization?
Ivenika [448]
Hey um dmdmdmd kk did ididfjjfddj jsshdjehe. Jerjdjhrrhc
6 0
3 years ago
Which of the following statements are true regarding fatty acids?
zaharov [31]

Answer:

Option (I) and (IV).

Explanation:

Fatty acids may be defined as the carboxylic acid that contains the long aliphatic chain. Fats are generally of two types - saturated fatty acid and  unsaturated fatty acid.

The fatty acids are generally synthesized in the two carbon units. This helps in the proper synthesis of fat. The fatty acids that are most common in plants and animals are palmittic acid or the fats that contain  C16 and C18 species predominate.

Thus, the correct answer is option (I) and (IV).

4 0
2 years ago
Why does it take so long for plants to grow
ale4655 [162]
Because plants go through a cycle(the cycle is seed, seedling, plant, flower and tree.) and it takes time for the plant food, water, and nutrients to go though the plant.
6 0
3 years ago
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