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solmaris [256]
3 years ago
11

Certain amino acids are called essential because they ______.

Biology
1 answer:
kumpel [21]3 years ago
3 0
Essential amino acids are amino acids that must be supplied to one's body by their diet because they cannot be synthesized from scratch. 
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A doctor treats a patient with a skin condition with different creams to see which is most effective. What is the independent va
kupik [55]

Answer:

1. Skin Creams

Explanation:

An independent variable is the only variable that is changed while the rest is kept the same. In this setup, the doctor is using different creams on the same patient with the same skin condition so the independent variable is the skin cream and not the skin condition.

7 0
2 years ago
When the northern hemisphere experiences _________, the southern hemisphere experiences __________.
Vinvika [58]

The answer is 4

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8 0
3 years ago
What three polysaccharides play a structural role in organisms?
Colt1911 [192]
Chitin - part of insects hard body and part of fungus
Cellulose - part of plant cell walls
Pectin - also part of plant cell walls
3 0
2 years ago
How many biosynthetic families are know for amino acid biosynthesis.
lana [24]

Answer:

There are six of them, based on the common compound that they are synthesized

Explanation:

The family of L- glutamate come from the cetoglutarate compound from the Kreps cycle. The family of L-serine, come from 3 - phosphoglicerate compound from the glucolisis. The L - aspartate family, that come from oxaloacetate compound, from the Krebs cylce. The piruvate family that come from the piruvate, from the glucolisis. The aromatic aminoacids, that come from eritrose - 4 - phosphate, from the pentose cycle. And the L histidine family, that come from the ATP.

3 0
3 years ago
Deamination occurs mostly in the brain. T/F
ki77a [65]

The answer is false.

Deamination is the process (reaction) in which an amine group is removed from a molecule of amino acid. The enzymes that are involved in this reaction are called deaminases. Deamination can be used for energy(break down of amino acids), when there is too much protein intake. Amine group is converted to ammonia that is then converted to urea or uric acid in the urea cycle and at the end excreted through the urine.

In the human body, deamination occurs mostly in the liver (e.g. urea cycle), but also in the kidneys (deamination of glutamate).

4 0
3 years ago
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