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lutik1710 [3]
3 years ago
9

Which best describes red blood cells

Biology
1 answer:
GaryK [48]3 years ago
4 0
The blood cells that carry oxygen are called red blood cells, they contain hemoglobin and it is the hemoglobin which permits them to transport oxygen and carbon dioxide. Hemoglobin aside from being a transport molecule is a pigment. It gives the cells a red color.
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Hi everyone
professor190 [17]

Amino acids are acids on one hand, and a base on the other hand.

<h3>What is an acid?</h3>

An acid is a substance that produces hydrogen or hydroxonium ions as the only positively charged ion when it ionizes.

All amino acids have an amine group -NH_2 and a carboxylic group -COOH.

The carboxylic group ionizes such that:

COOH -- > COO^- + H^+

The presence of the amine group enables amino acids to also act as a base.

More on amino acids can be found here: brainly.com/question/14583479

#SPJ1

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They play an important role in the control system by sensing defects that occur during essential processes such as DNA replication or chromosome segregation, and inducing a cell cycle arrest in response until the defects are repaired.
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b d e

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