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Tpy6a [65]
3 years ago
12

I need help ASAP!! Will give brainliest!

Biology
2 answers:
Ymorist [56]3 years ago
7 0

The correct answer is C
shutvik [7]3 years ago
6 0

Your answer is C!

good luck (-:

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Consider a series of metabolic events during fasting. Within a few days after a fast begins, nitrogen excretion accelerates to a
timurjin [86]

Answer:

A series of events occur, in prolonged fasting; the body undergoes changes and adaptations of its metabolism to continue to meet energy needs and maintain vital functions, despite not receiving food

These changes are divided into three phases according to the elapsed days of fasting and according to the metabolic processes involved.

First phase: main consumption of reserve carbohydrates.

Second phase: main consumption of fats.

Third phase: serious consumption of proteins.

Explanation:

If the fast is prolonged in time, the metabolic processes change in their qualitative and quantitative characteristics, so that the energy products consumed (glucose, free fatty acids and ketone bodies) are modified, their oxidation decreases globally and after the initial depletion of hepatic and muscular glycogen and protein catabolism, the main source of glucose is the liver through gluconeogenesis. The substrates initially come from protein catabolism and lipolysis, but later protein destruction slows down, maximizing lipolysis.

Between the first phase and the second phase of the fast some muscle proteins are lost but not excessively, even with fasts of two or three weeks.

After about 2 weeks of fasting, up to two-thirds of the energy the brain needs is obtained from ketone bodies. These ketone bodies are the breakdown products of fats and are responsible for the typical ketone breath reminiscent of the smell of acid apples; urine also smells like ketone.

In this phase, damage begins to occur in some important organs such as the liver and kidneys. Starting the first week of fasting, acidosis affects the heart's function of the circulation and the brain.

In the third phase of the prolonged fast it happens from 3 weeks, that is, about twenty days without food, although it varies according to the constitution of each person. A peak of muscle protein consumption occurs and a great loss of weight begins to be perceived with great weakness. Edema occurs and albumin concentration in the blood is altered, as a sign of the self-digestion of muscle proteins.

From approximately 30 days of fasting, the state of malnutrition severely affects all body systems. After forty or fifty days the deterioration is noticeable due to physical wear, the person loses his mobility and suffers from unconsciousness. Finally, starvation death can occur from cardiorespiratory arrest or from lack of blood supply to the brain.

7 0
3 years ago
Read 2 more answers
What cell structure controls the flow of the water and sucrose into and out of the cell?
kolbaska11 [484]
The plasma membrane, because it's a selective permeable which means it only allows certain things in like sucrose.

7 0
3 years ago
The evolutionary history for a group of species is called a
blsea [12.9K]

Answer:

The evolutionary history for a group of species is called a <u>phylogeny.</u>

Explanation:

Phylogeny is defined as the evolutionary history or evolutionary chronicle of the species, that is, it studies the relationship deals with the relationship between members of a group of species from the morphological, anatomical and embryological point of view. In this way, phylogeny explains the chronicle of each species, the different bifurcations, families and genetic structures, focusing on the evolution of the species in a global way.

4 0
4 years ago
How does the pharynx help maintain homeostasis?
Pie
<span>By filtering the air so that the lungs so the lungs don't get infected</span>
5 0
3 years ago
If the parent genotypes are Aa and Aa, the offspring are expected to be _____.
svet-max [94.6K]

Answer:

25% will be AA, another 25% will be aa, and 50% will be Aa

Explanation:

5 0
3 years ago
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