Question

complete the sentences with the terms provided. not all terms will be used.
1 activating complement triggers lysis of the infected cell.

1. precipitation and agglutination antigen - antibody complexes that make substances aggregate.
2. during neutralization, bac overed to prevent effective movement and release of toxins.
3. production of antibodies is refer by - mediated immune response.
4. each antibody recognizes a spe unique to its target.
5. an antibody is a protein immune system to identify and otherwise block or kill foreign objects such as bacteria and viruses.
6. when antibodies are bound to target cells they function as an opsonin, which enhances phagocytosis.

Explanation:

To solve this fill - in - the - blank problem about the immune system, we analyze each sentence based on the knowledge of immunology (a subfield of Biology in Natural Science):

Sentence 1

• Explanation: The complement system can trigger the lysis (destruction by breaking open) of infected cells. So the term "lysis" is the correct fit here.

Sentence 2

• Explanation: Precipitation and agglutination are processes where antigen - antibody complexes cause substances to aggregate. "Agglutination" is the right term as it specifically refers to the clumping of particles (like cells with antigens) by antibodies.

Sentence 3

• Explanation: In the process of neutralization, bacteria or viruses are covered (by antibodies) to prevent their effective movement and toxin release. So "neutralization" is the appropriate term.

Sentence 4

• Explanation: The production of antibodies is a key part of the antibody - mediated (also called humoral) immune response. So "antibody - mediated" is the correct term for this blank.

Sentence 5

• Explanation: Each antibody recognizes a specific antigen that is unique to its target. Antigens are the substances that antibodies bind to, so "antigen" is the right choice.

Sentence 6

• Explanation: An antibody is a type of protein. Antibodies are glycoproteins produced by B - cells, so "protein" is the correct term.

Sentence 7

• Explanation: When antibodies are bound to target cells, they can act as an opsonin. Opsonins enhance phagocytosis by marking the target cells for phagocytes. So the first blank is "target" (the cells that are the target of the immune response) and the second blank is "opsonin".

Final Answers for each blank:

1. lysis
2. agglutination
3. neutralization
4. antibody - mediated
5. antigen
6. protein
7. target; opsonin

Answer:

To solve this fill - in - the - blank problem about the immune system, we analyze each sentence based on the knowledge of immunology (a subfield of Biology in Natural Science):

Sentence 1

• Explanation: The complement system can trigger the lysis (destruction by breaking open) of infected cells. So the term "lysis" is the correct fit here.

Sentence 2

• Explanation: Precipitation and agglutination are processes where antigen - antibody complexes cause substances to aggregate. "Agglutination" is the right term as it specifically refers to the clumping of particles (like cells with antigens) by antibodies.

Sentence 3

• Explanation: In the process of neutralization, bacteria or viruses are covered (by antibodies) to prevent their effective movement and toxin release. So "neutralization" is the appropriate term.

Sentence 4

• Explanation: The production of antibodies is a key part of the antibody - mediated (also called humoral) immune response. So "antibody - mediated" is the correct term for this blank.

Sentence 5

• Explanation: Each antibody recognizes a specific antigen that is unique to its target. Antigens are the substances that antibodies bind to, so "antigen" is the right choice.

Sentence 6

• Explanation: An antibody is a type of protein. Antibodies are glycoproteins produced by B - cells, so "protein" is the correct term.

Sentence 7

• Explanation: When antibodies are bound to target cells, they can act as an opsonin. Opsonins enhance phagocytosis by marking the target cells for phagocytes. So the first blank is "target" (the cells that are the target of the immune response) and the second blank is "opsonin".

Final Answers for each blank:

1. lysis
2. agglutination
3. neutralization
4. antibody - mediated
5. antigen
6. protein
7. target; opsonin