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Rama09 [41]
3 years ago
5

What are the functions of T memory cells

Biology
2 answers:
viktelen [127]3 years ago
7 0
They provide the immune system with "memory" against previously encountered pathogens.

T memory cells are necessary for protective immunity against invading pathogens
jek_recluse [69]3 years ago
7 0

Answer:

T cells provide an immune response against the antigen by attacking infected cells and provide immediate response against future infection, by producing antibodies.

Explanation:

T cells or the T lymphocytes are one of the major components of the acquired immune system. They are important to have an immune response against pathogens.

T cells act against intracellular antigens such as protozoa, viruses, and bacteria (intracellular), and providing help for the antibody response for extracellular pathogens. They are of four main types - CD4+ helper, CD8+ cytotoxic cells, memory T cells, and NK cells.

These cells release cytokines to directly attack infected cells and stimulate the production of more T cells. Some of these T cells will become memory T cells in preparation for secondary infections, and others become cytotoxic T cells to attack infected cells.

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The homo erectus fossils from the lantian sites in china are dated to______ years old.
REY [17]

Answer: 1.15 million

Explanation:

6 0
2 years ago
Enkephalins and endorphins are peptides that act like morphine. True or False
mariarad [96]

Answer:

True.

Explanation:

Enkephalins and endorphins are endogenous peptides while morphine is an exogenous peptide.

Enkephalins and endorphins are powerful analgesics 18 to 500 times more than morphine. Hence, morphine is less analgesic than enkephalins and endorphins.

Enkephalins and endorphins act on the  mu, kappa , delta receptors and morphine also acts on the same receptors. All of them has same effects on the body.

Hence, Enkephalins and endorphins are peptides that act like morphine.

4 0
3 years ago
Read 2 more answers
A specific type of gram-negative bacteria contains endotoxin in the bacterial cell envelope. What is the likely clinical manifes
BlackZzzverrR [31]

Answer:

Fever.

Explanation:

If gram-negative bacteria contain a small amount of Endotoxin in the circulatory system can cause different types of infections such as inflammation, bleeding, hypertension, clotting, and fever.

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8 0
3 years ago
Consider the parts of the digestive system, particularly the place where water is removed before feces are excreted. Which organ
Phoenix [80]

Answer:

The colon.

Explanation:

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The colon has a large surface area and plays a major role in the reabsorption of fluids and the processing and formation of waste which it pushes towards the rectum to be expelled.

Diarrhea is a condition which is characterized by frequency of bowel movements and passage of loose and watery stools. It has various causes most of which affects the normal functionality of the colon thereby limiting it's ability to reabsorb water and fluids. Such causes which affect the colon include; Bacterial infections, laxative abuse, diseases of the colon such as ulcerative colitis and Crohn's disease etc.

8 0
3 years ago
What would be expected to lower the Tm for a phospholipid bilayer?
Rama09 [41]

Answer:

Replacing a lipid containing 18 C fatty acids with one containing 16 C fatty acids.

6 0
3 years ago
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