Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

micro 15

QuestionAnswer
The bone marrow is where immune responses to antigen occur. blood stem cells give rise to immature lymphocytes. antigen is filtered from the blood. antigen is filtered from tissue fluid. T lymphocytes complete maturation. blood stem cells give rise to immature lymphocytes.
The progeny cells of a B-cell clone are called antibodies. sensitized T cells. activated macrophages. plasma cells. Bursa cells. plasma cells
Helper T cells secrete antibodies. function in allergic reactions. directly destroy target cells. suppress immune reactions. activate B cells and other T cells activate B cells and other T cells
Plasma cells secrete antibodies. function in allergic reactions. directly destroy target cells. suppress immune reactions. activate B cells and other T cells. secrete antibodies
Cell surface markers involved in immune reactions are the result of genetic expression. function in recognition of self molecules. receive and transmit chemical messages among other cells of the system. aid in cellular development. All All of the choices are correct
The major histocompatability complex is a group of blood vessels that protects the nervous system. a set of genes that code for MHC cell receptors. also known as the complement system. located in the thymus gland. All of the choices are correct. a set of genes that code for MHC cell receptors.
Class II MHC genes code for certain secreted complement components. self receptors recognized by natural killer cells. all HLA antigens. receptors located primarily on macrophages, dendritic cells, and B cells. All of the choices are correct. receptors located primarily on macrophages, dendritic cells, and B cells.
Class I MHC genes code for certain secreted complement components. markers that display unique characteristics of self. all HLA antigens. receptors located primarily on macrophages and B cells. All of the choices are correct. markers that display unique characteristics of self.
Lymphocytes All of the choices are correct.
The monomer subunit of immunoglobulin molecules has all the following except four antigen binding sites
The region of each antibody molecule where amino acid composition is very different from one clone of B lymphocytes to another is the variable region. joining region. constant region. light region. hinge region. variable region
Lymphocyte maturation involves All of the choices are correct
Properties of effective antigens include all the following except large polymers made up of repeating subunits
The molecular fragment on an antigen molecule that a lymphocyte recognizes and responds to is called a/an epitope. hapten. antigen binding site. variable region. None of the choices are correct epitope
Small foreign molecules that are too small by themselves to elicit an immune response are termed antigenic determinant. hapten. antigen binding site. variable region. None of the choices are correct. hapten
Antigen presenting cells include dendritic cells. include macrophages. engulf and modify antigen to be more immunogenic. hold and present processed antigen on their cell membrane surface. All of the choices are correct. All of the choices are correct
T cell response to T-cell-dependent antigens requires All of the choices are correct
Which process involves antibodies covering surface receptors on a virus or toxin molecule thereby disrupting their activity? Neutralization Opsonization Complement fixation Agglutination Anamnestic response Neutralization
Which process involves antibodies cross-linking cells or particles into large aggregates? Neutralization Opsonization Complement fixation Agglutination Anamnestic response Agglutination
Which process involves antibodies coating microorganisms in order to facilitate phagocytosis? Neutralization Opsonization Complement fixation Agglutination Anamnestic response Opsonization
Which process involves a more rapid synthesis and greatly increased titer of antibody when the immune system is subsequently exposed to the same antigen? Neutralization Opsonization Complement fixation Agglutination Anamnestic response Anamnestic response
The immunoglobulin class that has a dimer form found in mucus, saliva, colostrum, and other body secretions is IgA. IgD. IgE. IgG. IgM. IgA.
The immunoglobulin class that is the only one capable of crossing the placenta is IgA. IgD. IgE. IgG. IgM. IgG
All of the following are characteristics of IgM except it has 10 antigen binding sites. it contains a central J chain. it is the first class synthesized by a plasma cell. it can fix complement. it is a dimer. it is a dimer
Which immunoglobulin class/es can fix complement? IgM only IgG only IgD only IgM and IgG IgE and IgA IgM and IgG
When antiserum is subjected to electrophoresis, the gamma globulin band contains mostly IgM. IgA. IgD. IgE. IgG. IgG
The most significant cells in graft rejection are helper T cells. suppressor T cells. cytotoxic T cells. B cells. natural killer (NK) cells. cytotoxic T cells.
Which are the first to attack cancer cells and virus-infected cells? helper T cells suppressor T cells cytotoxic T cells delayed hypersensitivity T cells natural killer (NK) cells natural killer (NK) cells
Monoclonal antibodies originate from a single B cell clone. have a single specificity for antigen. are secreted by hybridomas. are used in immunology lab tests and cancer therapy. All of the choices are correct. All of the choices are correct.
Cytotoxic T cells stimulate B cell proliferation. lack specificity for a target cell. secrete granzymes and perforins that damage target cells. secrete interleukin-2 to stimulate B and T cells. All of the choices are correct. secrete granzymes and perforins that damage target cells.
An example of artificial passive immunity would be giving a person immune serum globulins to chickenpox virus after exposure to the disease
An example of natural passive immunity would be a fetus acquiring maternal IgG to the chickenpox virus across the placenta.
An example of artificial active immunity would be chickenpox infection is followed by lifelong immunity chickenpox vaccine triggers extended immunity to chickenpox.
Which type of cell is severely depressed in AIDS patients? Cytotoxic T cells Helper T cells B cells Plasma cells Suppressor T cells Helper T cells
In the primary response to an antigen, the first class of antibody to be secreted is IgD. IgE. IgG. IgM. IgA. IgM
In the secondary response to an antigen, the predominant antibody is IgD. IgE. IgG. IgM. IgA. IgG
All of the following characterize the secondary response to an antigen except a higher titer of antibody is produced than the primary response. it is mostly IgM antibodies that are produced
Which antibody confers the most important specific local immunity to enteric, respiratory, and genitourinary pathogens? IgD IgE IgG IgM IgA IgA
Herceptin is an example of a monoclonal antibody-based drug for asthma. Chron's disease. breast cancer. respiratory syncytial virus. All of the choices are correct. breast cancer
Cody is 4 months old and is given an MMR injection by his pediatrician as part of the routine immunization schedule. What type of immunity is this? Artificial active immunity
Edward Jenner's work involved inoculation of dried pus from smallpox pustules into a person to stimulate immunity. immunization using a related, less pathogenic organism to give protection against a more pathogenic one.
Immunotherapy is the use of antitoxins. use of immune serum globulin. conferring of passive immunity. administering of preformed antibodies. All of the choices are correct. All of the choices are correct.
Killed or inactivated vaccines are prepared by Killed or inactivated vaccines are prepared by All of the choices are correct.
Live, attenuated vaccines include the Sabin polio vaccine. include the measles, mumps, rubella vaccine (MMR). include the measles, mumps, rubella vaccine (MMR).
Toxoids contain modified bacterial exotoxin molecules. are always genetically engineered. contain select antigenic components of a pathogen rather than whole cells or viruses. confer passive immunity. All of the choices are correct. contain modified bacterial exotoxin molecules
Which of the following is a special binding substance that enhances immugenicity and prolongs antigen retention at the injection site? Adjuvant Booster Antibodies to toxin Gamma globulin "Trojan horse" recombinant vaccine Adjuvant
Antitoxins contain antibodies to neutralize specific toxin. use Vaccinia virus with genetic material of bacterial toxins. contain purified, chemically denatured bacterial exotoxin. include capsule material against the pneumococcus and meningococcu contain antibodies to neutralize specific toxin.
The DTaP immunization contains diphtheria toxoid. is administered in childhood. contains tetanus toxoid. contains a pertussis vaccine with acellular capsule material. All of the choices are correct. All of the choices are correct.
Which of the immunizations would carry the greatest risk for immunocompromised patients? Killed, inactivated vaccines Attenuated vaccines Toxoids Immune serums Subunit vaccines Attenuated vaccines
Which of the following conditions have been conclusively proven to be linked to childhood vaccinations? Autism Diabetes Asthma All of the choices are correct. None of the choices are correct. None of the choices are correct.
All of the following are advantages of attenuated vaccines over inactivated vaccines except they can be transmitted to other people.
All of the following are advantages of attenuated vaccines over inactivated vaccines except they can mutate back to a virulent strain
All of the following are characteristics of an effective vaccine except it should stimulate only the antibody (B-cell) response
Reliable Vaccines exist for all of the following diseases except malaria
Sam works in construction and stepped on a sharp nail. He can't remember the last time he had a tetanus shot. What type of immunity is the most important for him to recieve. Artifical passive immunity
The immunoglobulins found on the surface of B cells is are IgD only
Superantigens are bacterial toxins that activate T cells at a 100 times greater than other antigens.
Created by: Cap2011
Popular Biology sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards