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aivan3 [116]
4 years ago
14

Cytotoxic T cells ________. self-destruct once the antigen has been neutralized require the double recognition signal of class I

MHC plus class II MHC on the target cell in order to function can directly attack and kill other cells of the body function mainly to stimulate the proliferation of other T cell populations
Biology
1 answer:
BlackZzzverrR [31]4 years ago
6 0

Answer:

Cytotoxic T cells are the only T cells that can directly attack and kill other cells.

Explanation:

Cytotoxic T cells, also called killer cells, are the only cells that have the ability to kill cells infected by foreign bodies that are recognized as a threat to the body. These cells act directly on foreign and virus-infected cells or anything else the immune system recognizes as dangerous.

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All of the following contain amino acids except a) hemoglobin b) cholesterol c) insulin d) enzymes e) antibodies
Vinil7 [7]

Answer:

cholesterol.

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4 0
3 years ago
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State five important of fungi in biology
valkas [14]
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3 years ago
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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

8 0
2 years ago
Which of these molecules is used for powering cellular processes? ATP Nucleic acids None of these choices Carbon Dioxide
sasho [114]
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5 0
3 years ago
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