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Free_Kalibri [48]
3 years ago
7

Why are certain amino acids called essential amino acids?

Biology
2 answers:
Marta_Voda [28]3 years ago
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.
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3 years ago
the is the thin layer of the mucosa responsible for pulling the mucosa into its many folds which increases the surface area of t
krek1111 [17]

yes, Muscularis  mucosa - The stomach and small intestine's mucosa are pulled into undulating folds by a thin layer of smooth muscle that is constantly tensed. The surface area that is available for digestion and absorption is significantly increased by these folds.

The submucosa is located directly beneath the mucosa, as its name suggests. It joins the underlying muscularis to the overlaying mucosa by way of a large layer of dense connective tissue. It has blood and lymphatic vessels (which carry nutrients that have been absorbed), as well as a few submucosal glands that secrete digestive juices. Additionally, it functions as a passageway for the submucosal plexus, a densely branched network of nerves.

These layers compress to encourage mechanical digestion, expose more of the food to the chemicals that aid in digestion, and transport the food along the canal.

To learn more about mucosa:

brainly.com/question/14249623

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4 0
2 years ago
At the end of meiosis l, 4 daughter cells are created <br> A. True <br> B. False
leonid [27]

Answer:

TRUE

Explanation:

By the end of meiosis, the resulting reproductive cells, or gametes, each have 23 genetically unique chromosomes. The overall process of meiosis produces four daughter cells from one single parent cell. Each daughter cell is haploid, because it has half the number of chromosomes as the original parent cell

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3 years ago
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matrenka [14]
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olya-2409 [2.1K]

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