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
Cerrena [4.2K]
3 years ago
13

Which receptor on the helper T-cell recognizes the specific antigen from an antigen-presenting cell? Which receptor on the helpe

r T-cell recognizes the specific antigen from an antigen-presenting cell? CD4 IL-2 Receptors TCR IL-1 Receptors
Biology
1 answer:
IgorLugansk [536]3 years ago
5 0

Answer:

TCR

Explanation:

Helper T cells are the CD4T cells that are present in the inactive form. These cells have receptors for antigens on their surface. These antigen receptors are called T-cell receptors (TCRs). The function of TCR is to recognize and bind to specific foreign antigen fragments that are presented in antigen–MHC complexes. Different helper T cells have their unique TCRs to recognize a specific antigen–MHC complex. The CD4 proteins of helper T cells also interact with the MHC antigens and help maintain the TCR–MHC coupling.

You might be interested in
What is involved in the process of artificial selection?
Darina [25.2K]

Answer:

Explanation:

Artificial selection is the process by which humans choose individual organisms with certain phenotypic trait values for breeding. If there is additive genetic variance for the selected trait, it will respond to the selection, that is, the trait will evolve.

5 0
3 years ago
Read 2 more answers
(C) If a cheek cell is surrounded by pure water, would you predict that more water would
KIM [24]
I wish I could help but I can I’m sorry so good night
3 0
3 years ago
The net annual primary productivity of a particular wetland ecosystem is found to be 8,000 kcal/m2 per year. If respiration by t
Yakvenalex [24]

Answer:

D.20,000

Explanation:

The Gross Annual Primary Productivity for the wetland ecosystem is the amount of carbon taken up by the aquatic producers through photosynthesis.  

Given that: Net Annual Primary Producer is 8,000 kcal/m2 per year, and respiration by the aquatic producers is 12,000 kcal/m2 per year, using the formula NPP = GPP – Respiration, we can determine the Gross Annual Primary Productivity of the wetland ecosystem.

NNP = 8,000 kcal/m2

Respiration = 12,000 kcal/m2

GPP = x

8,000 = x – 12,000 (NPP = GPP – Respiration)

Solve for x:

x = 8,000 + 12,000

x = 20,000 kcal/m2 per year

GPP = 20,000 kcal/m2 per year

3 0
3 years ago
Which of the following pieces of equipment should be used to separate this mixture?
ollegr [7]
Whats the mixture?? Tho
7 0
3 years ago
Why is it necessary to complete the identification of a bacterium based?
Neporo4naja [7]
<span>The trouble with identifying bacteria is that a lot of them look exactly the same. So, identifying by shape and such will only get you so far. However, two kinds of bacteria that look exactly the same under the microscope could have very different physiologists. One may be able to use a certain sugar as an energy source while the other one cannot, for example. Therefore, you can use morphology (physical characteristics) to narrow down the possibilities, but then you must complete the identification using the bacteria's physiology.</span>
7 0
3 years ago
Other questions:
  • How are food chains and food webs related
    10·1 answer
  • Please help ASAP! Describe at least one way in which each of Earth’s subsystems was altered during the Precambrian era.
    5·2 answers
  • When your biceps brachii (upper arm) muscle contracts, ultimately and most directly, what is producing the movement?
    8·2 answers
  • What are some atoms that all these amino acids have in common with carbohydrates​
    9·1 answer
  • The bones in the front limbs of many mammals are similar in their structure.what term is used to describe physical similarities
    15·1 answer
  • If you have inherited the talent to play the piano, you can play the instrument really well without much practice.
    12·1 answer
  • Sponges (phylum: Porifera) are animals that possess feeding cells called collar cells. These cells have a central flagellum surr
    14·1 answer
  • How many legs does a water bear have?
    8·1 answer
  • How many cells do males create during meiosis? How many cells do females create<br> during meiosis?
    8·2 answers
  • the text points out that studying animals may shed light on diverse aspects of human behavior. for example, research using honey
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!