AP Bio Ch 23-24

5 Written Questions

1. Large vein that drains blood from the lower body.
2. Chemical messenger, produced by virus-infected cells and capable of helping other cells resist the virus
3. Inactive form of the plasma protein that is converted to the active form fibrin
4. Temporary immunity obtained by acquiring ready-made antibodies
5. A set of about 20 serum proteins that carry out a cascade of steps leading to the lysis of microbes

5 Matching Questions

1. lymphatic system
2. arteriole
3. antigen-presenting cell (APCs)
4. lymphocyte
5. cardiovascular system

1. a A white blood cell
2. b Closed circulatory system with a heart and branching network of arteries, capillaries, and veins
3. c A vessel that conveys blood between an artery and a capillary bed.
4. d System of vessels and lymph nodes, separate from the circulatory system
5. e cells that ingest bacteria and viruses and present them to helper T cells

5 Multiple Choice Questions

1. Mechanism that determines specificity and accounts for antigen memory in the immune system
   1. allergens
   2. allergies
   3. clonal selection
   4. platelet
2. When one or more blood vessels are blocked, heart muscle cells will quickly die
   1. vaccination
   2. arteriole
   3. heart attack
   4. artery
3. Also called the sinoatrial (SA) node.
   1. plasma
   2. platelet
   3. anemia
   4. pacemaker
4. Antigens that cause allergies
   1. allergens
   2. anemia
   3. vein
   4. arteriole
5. A derivative of B cells that secretes antibodies
   1. B cells
   2. T cells
   3. plasma cell
   4. platelet

5 True/False Questions

1. immunity → Protects the body by attacking foreign substances, infectious microbes, and cancer cells

   True        False

2. venule → A vessel that conveys blood between a capillary bed and a vein.

   True        False

3. T cells → Cell that produces perforins

   True        False

4. antibody → A foreign macromolecule that does not belong to the host organism

   True        False

5. vein → An abnormally low amount of hemoglobin or a low number of red blood cells

   True        False