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joja [24]
1 year ago
10

__________identify antigens and then multiply and trigger the production of other kinds of immune cells.

Biology
1 answer:
solong [7]1 year ago
5 0

<u>Helper t-cells</u> identify antigens and then multiply and trigger the production of other kinds of immune cells.

<h3>What are helper T-cells?</h3>

Helper T-cells are one of the main types of immune cells. They detect infections and activate other immune cells to fight the infection.

Your thymus develops helper T-cells. The thymus is a small gland in the front of your chest. The other types of T-cells include:

  • Cytotoxic T-cells, which fight infections.
  • Regulatory T-cells, which regulate or suppress other immune cells when needed.
  • NKT-cells, which can enhance immunity in general.

<h3>What are the subtypes of helper T-cells?</h3>

When helper T-cells detect an infection, they form into one of two subtypes:

  1. TH1 helper cells release a molecule that activates a type of cell called a macrophage. Macrophages are specialized cells that help eliminate foreign substances from your body. TH1 cells also activate cytotoxic T-cells.
  2. TH2 helper cells release molecules that activate B-cells. B-cells create antibodies. They also release cells that cause coughing, sneezing or diarrhea to help your body get rid of foreign substances. This group of T-cells helps generate allergy antibodies.

Learn more about helper T-cells

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List 2 ways prays can avoid predators
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Explanation:

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2 years ago
Ampicillin is a member of the penicillin family of antibiotics. what would happen to ampr bacterial strains if they were streake
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The amoxicillin and the ampicillin are known to degrade the cell wall. both of these antibiotics have β- lactam in their structure. The structure of the ampicillin and the amoxicillin is similar having a single difference at the 4th position of benzene ring. The structure of the amoxicillin have an addition OH or hydroxyl group at the 4th position in the benzene ring.

As the structure of ampicillin and amoxicillin is similar, the bacteria having ampicillin resistance can also show amoxicillin resistance.

MODE OF ACTION OF AMOXICILLIN:

The amoxicillin binds with the pencillin binding proteins, present in the bacterial cell wall. The binding of the amoxicillin inhibits the enzyme transpepetidase, which is an important enzyme for the synthesis of the cell wall. it also inhibit murine hydrolases and inhibit the assembling of cell wall.

The amoxicillin effects the cell walls of the bacteria, as the animals cells do not have cell wall, they only have a cell membrane, the increase in the dose would not effect the animal cell.

4 0
3 years ago
Some cells contain large numbers of mitochondria while others have relatively few or none. This suggests that Some cells contain
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5 0
2 years ago
what are the structures in the cerebrum that are elevated ridges, which increase surface area to increase the number of neurons
Anni [7]

The purpose of the brain's gyri and sulci, or ridges and grooves, is to increase surface area.

<h3>What is the name for the raised ridges in the cerebrum?</h3>

The shallow grooves on the cerebral cortex's surface are referred to as sulci, while the higher tissue ridges are called gyri.

Signals are transferred between nerve cells in different regions of the brain and body through white nerve fibres that are below the skin. The neocortex, a six-layered structure present in animals, has a wrinkled surface that enhances its surface area.

The cerebellum has an odd surface appearance that hides the fact that the cerebellar cortex, a layer of grey matter, makes up the majority of the structure. This layer's ridges are collectively referred to as folium.

learn more about  cerebrum refer

brainly.com/question/28189482

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8 0
1 year ago
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