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]
2 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]2 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
Viral hemagglutination assays only work with certain types of viruses because
nignag [31]

Answer:

a. the virus must be able to cross-link red blood cells directly.

Explanation:

Viral hemagglutination assay is a method which is used for the quantification of the relative concentration of the viruses.

The principle on which the hemagglutination assay works is as follows:

  1. There are sialic acid receptors present on the surface of the red blood cells which will bind to the haemagglutinin glycoprotein present  on the surface of the viral particle. 
  2. Due to the binding of the sialic acid receptors with haemagglutinin particle there will be cross-linking of the red blood cells by the viral particles and a lattice formation will take place. 
  3. The lattice will remain suspended in the solution however if the concentration of the virus particles will be less, the lattice will settle down in the well. 

Thus, this method allows knowing the relative concentration of the virus. 

<em>Due to its basic principle of cross-linking this method works well for only a few viruses such as influenza virus. </em>

5 0
3 years ago
Choose all the answers that apply.
Butoxors [25]

are the leading causes of death worldwide

4 0
3 years ago
Read 2 more answers
The nurse is monitoring a​ 2-year-old client with cellulitis that developed from an insect bite on the face. The nurse understan
Amanda [17]
An insect bite on the face produces a break in the skin which introduces the normal skin flora (usually <em>Staphylococcus </em>and <em>Streptococcus</em>) to the sterile subcutaneous tissue causing inflammation. The inflammation of the subcutaneous tissue is called cellulitis. Since the infection is in the face, then it can travel from the infected site to the meninges through the cavernous sinuses and cause bacterial meningitis. 
8 0
2 years ago
Which process takes place in the mitochondrion?
ser-zykov [4K]
There are no answer choices, but I know the mitochondria create energy for the cell.
8 0
3 years ago
Read 2 more answers
If tips of grasses or sugar cane are removed they keep growing in length
Nikitich [7]

Answer:

Presence of intercalary metristems.

Explanation:

Makes the sugar cane grow in length even if the tips are removed.

7 0
2 years ago
Other questions:
  • Which type of transport moves molecules, other than water, from an area of higher to lower concentration?
    7·2 answers
  • List as many effects of bacteria as you can. It can be either positive and negative.
    5·1 answer
  • What type of registry would maintain information about the donor and the recipient of an organ? implant registry birth defect re
    6·2 answers
  • What is The Global Food Web?
    14·2 answers
  • QUESTION 31
    5·2 answers
  • 1. Cytoplasm
    5·1 answer
  • Which layer of the Earth do we obtain resources from?
    7·2 answers
  • In which situation could a mutation be passed on to the offspring in an
    10·1 answer
  • Which procedure is an example of classifying observed data?
    10·2 answers
  • Plz help!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!