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3 years ago

Why are certain amino acids called essential amino acids?

2 answers:

7 0

Essential amino acids refer to the eight amino acids the adult body needs, which they cannot be synthesized correctly or at all.
The essential amino acids must be obtained from food such as proteins (meats, seafood, milk, eggs, etc).

gladu [14]3 years ago

7 0

BCAAs are considered essential because, unlike non-essential amino acids, your body cannot make them. Therefore, it is essential to get them from your diet. Bottom Line: The three BCAAs are leucine, isoleucine and valine. All have a branched molecular structure and are considered essential to the human body.

You might be interested in

The strong risk factors for colon cancer include which of the following? (Select all that apply.) A. Aging B. Gender C. Heredity

USPshnik [31]

Answer:

a. Aging

c. Heredity

d. Crohn disease

e. High-fat diet

Explanation:

Colon cancer involves the abnormal growth of cells in the colon found in the large intestine.

Colon cancer is found to be hereditary in about 10 percent of patients .

It is also common with individuals who are used to taking high fat diets and affects most people older than 50 years old.

Crohn’s disease is also found to be a risk factor for having colon cancer.

5 0

3 years ago

Once the newly made spring has been hardened, what temperature should it be drawn to?

bagirrra123 [75]

Temperature should it be drawn to 600°-650° Fahrenheit for the newly made spring has been hardened

Hammer, sear, and trigger are the three main parts of a trigger mechanism.
. Single-stage trigger is used on the Winchester Model 94 and Marlin Model 336 rifle.
Lapping is the process called that entails rubbing minute amounts of metal from surfaces that must be precision-finished.
. Gray to dark blue color would be observe if we achieved the desired drawing temperature of 600-650° Fahrenheit.
Thermocouple pyrometer is the most common instrument for measuring high temperatures in heat-treating furnaces.
Cherry to bright cherry color would be observe by reaching the temperature of 1,400°-1,500° Fahrenheit.
Once the newly made spring has been hardened 600° -650° Fahrenheit temperature would observe.

To know more about trigger mechanism. visit :

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3 0

1 year ago

In people who are regularly physically active, extra fat consumed in the diet is stored first in In people who are regularly phy

Anton [14]

Answer:

In muscle tissue

Explanation:

People who exercise daily, their metabolism rate is very high and the consume sugar, proteins and fat as a substrate for providing ATP molecules. The ATP molecules are then utilized by the body to perform physical work.

The physically active people when they require fat in their diets, the fats first will be stored in the muscle tissue as the cells there will use fat as a substrate for providing a large amount of energy that is 1 g of fat will provide 9 kcal.

Thus, muscle tissue is the correct answer.

3 0

3 years ago

What happens in animal cells when mineral concentration is high and low in solution

slamgirl [31]

Answer:

Diffusion occurs when there is movement of minerals from an area of higher to lower concentration, till equilibrium is obtained.

Whereas Osmosis is the movement of solvents rather then the solute, from a solution of lower to a solution of higher concentration with the help of semipermeable membrane.

Explanation:

Diffusion is the movement of substances from area of higher concentration to an area of lower concentration of minerals, which mainly results in animal cells. Whether solute or solvent, diffusion occurs for both. Diffusion does not requires any semi permeable membrane. Diffusion occur in all state of matter, that solid, liquid and gas, whereas osmosis occurs only in liquid state. Osmosis requires semipermeable membrane and rate of which is related to concentration of solute dissolution in solvent medium. Only movement of solvent medium takes place. Classical example of osmosis is exhibited by cell membranes of animal cells. On the other hand diffusion is the spreading of perfume or fragrances to the external air.

6 0

3 years ago

a. The logistic equation reflects the effect of density-dependent factors, which can ultimately stabilize populations around the

castortr0y [4]

Question:

Which of the following is an incorrect statement about the regulation of populations?

Answer:

b. Density-independent factors have an increasingly greater effect as a population's density increases.

Explanation:

A population can be defined as the total number of living organisms living together in a particular place and sharing certain characteristics in common.

Generally, these populations may be divided into a fraction of the population (subpopulation) based on certain factors and reasons.

Population change equation states that the change in the size of a population over a specific period of time is equal to the sum of the number of births and the number of immigrants that joined.

Mathematically, the population change equation is given by the formula;

Population Change = (Natality - Mortality) + (Immigration - Emigration)

Population regulation can be defined as a biological process that balances limiting factors affecting the growth of a population based on density. The factors that regulate the growth of a population are divided into two (2) main categories and these includes;

I. Density-independent factors.

II. Density-dependent factors.

Density-dependent are regulating factors such as predation, diseases, and competition that affect the size of the population of living organisms through decreasing or increasing mortality and birth rate.

Furthermore, density-independent factors do not have an increasingly greater effect as a population's density increases. Thus, its effect are reduced as a population's density increases in size.

7 0

3 years ago