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Tasya [4]
4 years ago
9

Benedicts reagent is an indicator for the presence of ______________ in solution

Biology
1 answer:
Agata [3.3K]4 years ago
8 0
In lab, we used Benedict's reagent to test for one particular reducing sugar: glucose. Benedict's reagent starts out aqua-blue. As it is heated in the presence of reducing sugars, it turns yellow to orange. The "hotter" the final color of the reagent, the higher the concentration of reducing sugar.
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Which location is the source of magma
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In the lower part of Earth's crust and in the upper part of the mantle.

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3 years ago
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In a laboratory experiment with three groups, one group of people drinks pure water, a second group drinks an equal amount of be
ki77a [65]

Answer:

The alcohol group will have produced the greatest volume of urine

The concentrated salt solution group will have produced the least volume of urine

Explanation:

Alcohol inhibits the antidiuretic hormone. This hormone, also known as vasopressin hormone, is released by changes in serum osmolarity or blood volume. Its function is to keep homeostasis and make kidneys conserve or keep water by concentrating urine and by reducing its volume. By these actions, the antidiuretic hormone stimulates water reabsorption, acording to the organism´s needs. The antidiuretic hormone is very sensitive to the presence of alcohol in the blood. Alcohol inhibits the hormone production and the kidneys eliminate more water than the necessary volume. In other words, alcohol is a diuretic substance that enhances urine production.  

Salt ingestion causes an increase in plasmatic osmolarity, stimulates thirst and hence, water ingestion. It also causes an increase in the antidiuretic hormone, which anhances in water reabsorption by the kidneys in its collector tubules. Salt consumption causes a change in osmolarity, which drives to an increase in water reabsorption and an important reduction in urine volume.  

7 0
3 years ago
Which statement regarding protein structure is true? Van der Waals interactions are insignificant. Hydrophilic side chains are n
Nata [24]

Answer:

The true statement is <em>Hydrophobic side chains are usually in the interior of the native structure</em>.

Explanation:

In the native structure of a protein, the hydrophobic side chains of aminoacids- such as leucine (Leu), alanine (Ala), methionine (Met), and others-are located in the interior of the structure. They are buried inside the structure, whereas polar side chains are exposed to the outside in the structure, and they interact with water molecules.

Regarding the other statements, entropy-as a measure of disorder of a system-is very important in protein stability as we know that native conformations are more ordered systems, with lower entropy and higher stability. Aminoacids in the protein structure interact each other through Van der Waals interactions and hydrogen bonds.

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3 years ago
A young plant growing from a seed is called a ...
MAVERICK [17]

Answer:

the answer is seedling

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3 years ago
Besides replicating DNA, what is another function of DNA polymerase? options:
Virty [35]

C. They unwinds the two strand of DNA.

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3 years ago
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