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Gennadij [26K]
3 years ago
5

Which amino acid(s) are metabolites in the urea cycle, but are not used as building blocks of proteins? A) Ornithine B) Citrilli

ne C) Glutamate D) A and B E) A, B, and C
Chemistry
1 answer:
In-s [12.5K]3 years ago
3 0

Answer:

D)

Explanation:

Ornithine and Citrulline are the amino acids which are metabolites in the urea cycle but not used as building blocks of proteins.

Ornithine is the most important reactant in urea cycle that is responsible for 80% of the excretion of nitrogen in the body. It even improves liver function.

Even Citrulline is not used in the building blocks of protein, Citrulline is mainly used to widen blood vessels and may play a role in muscle building.

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Which is true about covalent compounds?have a high melting pointconduct electricity when dissolved in waterhave a low boiling po
iris [78.8K]
The correct answer from the choices given is the third option. Covalent compounds have low boiling points. Also, their melting points are low. Covalent bonds have relatively low attractions which results to these properties. The bonds are easily broken by taking energy or adding energy.
8 0
3 years ago
You have 7.86 x 10^23 molecules of NaCl. This would be equal to ___ grams of NaCl.
sergij07 [2.7K]

7.86 \times 10 {}^{23} atoms \\  \frac{7.86}{6.022}  \times  \frac{10 {}^{23} }{ {10}^{23} }   = 1.305\: moles

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3 0
2 years ago
What is the mass of 4.57 x 1021 molecules of ammonia (NH3)?
Alex17521 [72]

Answer:

4665.97

Explanation:

5 0
3 years ago
The role of chlorophyll during photosynthesis is to
Fudgin [204]

Answer:

Absorb light energy

Explanation:

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3 0
3 years ago
Why does water with salt in it freeze much more slower than water without it ? Explain
serg [7]
When you add salt to water, you lower to freezing point of the substance.

So for example, normal water freezes at 0°C. But water with salt in it won't freeze at 0°C, because its freezing point is lowered. 

In answer to the question. It takes longer for water with salt in it to freeze because the substance requires a lower temperature than normal water to freeze.
4 0
3 years ago
Read 2 more answers
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