HEL 1. What are the primary organs of the urinary system?
A. kidneys
B. lungs
C. blood vessels
D. hormone secreting glands

2. Which structure in the nephron carries out the process of filtration?
A. glomerulus
B. collecting duct
C. loop of Henle
D. proximal convoluted tubule

3. What is the name for the fluid that collects in Bowman's capsule?
A. blood plasma
B. filtrate
C. urine
D. None of these choices are correct.

4. Which part of the nephron carries out most of the reabsorption of nutrients into the blood?
A. Bowman's capsule
B. distal convoluted tubule
C. loop of Henle
D. proximal convoluted tubule

5. Which type of pathogen is not made up of cells?
A. animal pathogens
B. bacteria
C. fungi
D. protozoa
E. viruses

6. Which type of pathogen is made up of a single prokarytotic cell?
A. animal pathogens
B. bacteria
C. fungi
D. protozoa
E. viruses

7. Which of these pathogens is made up of eukaryotic cells?
A. animal pathogens
B. fungi
C. protozoa
D. All of these choices are correct.

8. What is the only type of pathogen that can be treated with antibiotics?
A. animal pathogens
B. bacteria
C. fungi
D. protozoa
E. viruses

9. Which of the following is a part of the non-specific immunity?
A. B lymphocytes
B. plasma cells
C. skin
D. T lymphocytes

10. Which of these cells is responsible for antibody-mediated immunity?
A. B lymphocyte
B. Helper T lymphocyte
C. Killer T lymphocyte
D. macrophage