What are antigens?Proteins found on the surface of cellsMicrobes that cause diseasesProteins that bind to pathogensProteins that kill toxins released by pathogens3Which of the following statements about antibodies is not true?They can cause pathogens to clump togetherA single antibody can destroy a wide range of pathogensThey attach to antigensThey are produced by white blood cells4
Question
What are antigens?Proteins found on the surface of cellsMicrobes that cause diseasesProteins that bind to pathogensProteins that kill toxins released by pathogens3Which of the following statements about antibodies is not true?They can cause pathogens to clump togetherA single antibody can destroy a wide range of pathogensThey attach to antigensThey are produced by white blood cells4
Solution
It seems like you've asked multiple questions in one go. Let's break them down:
-
What are antigens? Antigens are substances that can induce an immune response in the body. They are typically found on the surface of cells, including bacteria, viruses, fungi, and parasites. They can also be toxins or other substances in the body. When the immune system recognizes an antigen as foreign, it produces antibodies to fight against it.
-
Which of the following statements about antibodies is not true? The statement that "A single antibody can destroy a wide range of pathogens" is not true. Antibodies are highly specific to the antigen that induced their production. This means that an antibody produced in response to a specific pathogen will only recognize and bind to that pathogen. They cannot destroy a wide range of pathogens.
Similar Questions
Which of the following are not produced by white blood cells to protect us from pathogens?AntitoxinsAntibodiesDigestive enzymesAntigens2What are antigens?Proteins found on the surface of cellsProteins that bind to pathogensMicrobes that cause diseasesProteins that kill toxins released by pathogens3Which of the following statements about antibodies is not true?They can cause pathogens to clump togetherThey attach to antigensA single antibody can destroy a wide range of pathogensThey are produced by white blood cells4Which of the following is contained in a vaccine? A live pathogenA dead or weakened pathogenAn antigenAn antibody5If most of the population is vaccinated against an infectious disease, this can reduce the chances of people coming into contact with the pathogen that causes the disease. This is known as:Herd immunityHerd infectionPopulation immunityHerd vaccination
Antigens:Question 22Select one or more:a. are used by the immune system to identify what is part of the body and what is a pathogen.b.are often large proteins (some carbohydrates and lipids can also be antigenic).c.stimulate the activity of T and B lymphocytes.d.are found on the surface of cells (both pathogens and body cells), and on pollen, toxins, and food.
Antibodies:Question 19Select one:a.bind to antigens on the surface of pathogensb.are part of the first line of defence. c.are features on the outside of cells or pathogensd.are infections or diseases
What is an antigen?Multiple choice question.any molecule that triggers an immune responsea molecule produced during an immune response
When antibodies bind to the antigens on a pathogen or toxin....Choose all correct answers.Question 17Select one or more:a.a toxin coated with antibodies cannot damage the cell.b.Antigens that are coated with antibodies are easier for phagocytes to attach toc.The pathogen can no longer attach to the target cell.d.Antibodies can link antigens together forming a cluster that phagocytes can ingest.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.