1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Hunter-Best [27]
3 years ago
7

What role do all antigen-presenting cells (APCs) play?

Biology
1 answer:
lbvjy [14]3 years ago
4 0

Answer:

b). activation of T cells

Explanation:

An APC (antigen-presenting cell) can be described as an immune cell, which detects, uptakes, and informs the acquired immune response when an infection takes place. B cells, macrophages, and dendritic cells are antigen-presenting cells.

These cells play an important role in activation of T cells. T cells are unable to recognize soluble or free antigens and can only recognize antigens processed and presented by carrier molecules, such as MHC molecules.

Presence of MHCII molecules is a defining feature of APCs that process and present antigens to T cells. Hence, all antigen-presenting cells help in activation of T cells.  

Thus, the correct answer is option (b).

You might be interested in
Which city is warmer, Columbia -1.5F or Seattle -1.2F
77julia77 [94]

Answer:

Seattle

Explanation:

-1.5f is colder than -1.2f.

7 0
3 years ago
By age 30, what percentage of men and women have lived together without being married (cohabitated)?
yanalaym [24]

Answer:

50 percent

Explanation:

hope this helps

6 0
3 years ago
Look at the image of landforms. Which point has the highest elevation? 1 2 3 4
LekaFEV [45]
There is no image please add one
7 0
3 years ago
Read 2 more answers
Explain the difference between a waves period and frequency
viktelen [127]

The time difference between the occurrences of two peaks is the period of the wave. The time difference between two consecutive black dots marked also gives the period of the wave. Generally, symbol ‘T’ is used to denote period in physics. Unit of measuring period is seconds (s).

7 0
3 years ago
What is the purpose of a fever?
juin [17]
When your body temperature rises because of an infection, it's called a fever<span>. </span>Fevers<span> are caused by chemicals called pyrogens flowing in the bloodstream. Pyrogens make their way to the hypothalamus in the brain, which is in charge of regulating body temperature.</span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • During mitosis, chromatin condenses into chromosomes, spindle fibers form from one end of the cell to the other, and centrioles
    12·1 answer
  • What is a substrate and give an example
    9·1 answer
  • The wife of a 65-year-old man tells the nurse that she is concerned because she has noticed a change in her husband's personalit
    5·1 answer
  • What part of the respiratory system do you think is most important? Provide a thorough explanation to support your answer.
    5·1 answer
  • Heightened sensitivity to a neurotransmitter after the destruction of an incoming axon is known as ____.
    14·1 answer
  • List three ecosystem services provided by wetlands:<br> 1:<br> 2:<br> 3:
    13·1 answer
  • How does air pollution from combustion engines, industrial processing, and fossil fuels affect the biosphere?
    7·1 answer
  • What is a dummy down way definition of anatomy ???
    13·1 answer
  • What is Newton's third law of motion
    11·1 answer
  • True or false: concept that cells or organisms maintain specific internal conditions
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!