Chapter 21.2 Quiz
1. Cellular ingestion and destruction of particulate matter is called phagocytosis.
True
2. Which of the following is a part of the second line of defense against microorganisms?
Phagocytes
3. Innate immune system defenses include ________.
Phagocytosis
4. Which of the following cells predominate at the sites of chronic infections?
Macrophages
Chapter 21.3 Quiz
1. Substances capable of triggering the adaptive immune system and provoking an immune response are called antigens.
True
2. Small molecules that bind with self-proteins to produce antigenic substances are called ________.
Haptens
3. Which of the following is not characteristic of the adaptive immune system?
It is specific for a given organ.
4. Immunocompetence ________.
Is the ability of individual cells to recognize a specific antigen by binding to it
5. Select the correct statement about antigens.
One antigen may have many different antigenic determinants and may therefore cause the formation of more than one antibody.
Chapter 21.4 Quiz
1. Some immunocompetent cells will never be called to service in our lifetime.
True
2. Adaptive immunity is provided only by lymphocytes that secrete antibodies.
False
3. Somatic recombination by B cells allows each B cell to form its own unique antibody genes. True
4. It is our genes, not antigens, that determine what specific foreign substances our immune system will be able to recognize and resist.
True
5. B lymphocytes develop immunocompetence in the ________.
Bone marrow
6. Which of the statements below does not describe antigens?
Antigens only come from microbes.
7. Which of the following determine(s) what specific foreign substances our adaptive immune system will be able to recognize and resist?
Our genes
8. Which of the following statements is a false or incorrect statement?
After