1. *Which statement about white blood cells is true?*
a. B cells are responsbile for antibody production.
b. White blood cells are made in the white/ yellow cartilage before they enter
the bloodstream.
c. Platelets, a special class of white blood cell, function to clot blood and stop
bleeding.
d. The majority of white blood cells only activate during the age of puberty,
which explains why children and elderly are particulary susceptible to dis-
ease.: A
2. *In testing how quickly a rat dies by the amount of poison it eats, which of the
following is the independent variable and which is the dependent variable?*
A. How quickly the rat dies is the independent variable; the amount of poison
is the dependent variable.
B. The amount of poison is the independent variable; how quickly the rat dies
is the dependent variable.
C. Whether the rat eats the poison is the independent variable; how quickly the
rat dies is the dependent variable.
D. The cage the rat is kept in is the independent variable; the amount of poison
is the dependent variable.: B
3. *Which of the following are functions of the urinary system?*
*I. Synthesizing calcitrol and secreting erythropoeitin.
II Regulating the concentrations of sodium, potassium, chloride, calcium, and
other ions.
III. Reabsorbing or secreting hydrogen ions and bicarbonate.
IV. Detecting reductions in blood volume and pressure*
,A. I, II, & III
B. II & III
, C. II, III, & IV
D. All of the above: D
4. *Which of the following structures is unique to eukaryotic cells?*
A. Cell walls
B. Nuclei
C. Cell membranes
D. Organelles: B
5. *Which of the cellular organelle used for digestion to recycle materials?*
A. The Golgi apparatus
B. The Lysosome
C. The Centrioles
D. The Mitochondria: B
6. *A rock has a mass of 14.3 grams (g) and a volume of 5.4 cm^3, what is its
density?*
A. 8.90 g/cm^3
B. 0.38 g/cm^3'
C. 77.22 g/cm^3
D. 2.65 g/cm^3: D
7. *Why do arteries have valves?*
A. They have valves to maintain high blood pressure so that capillaries dissue
nutrients properly.
B. Their valvues are designed to prevent backflow due to their low blood
pressure
3 B/
16
a. B cells are responsbile for antibody production.
b. White blood cells are made in the white/ yellow cartilage before they enter
the bloodstream.
c. Platelets, a special class of white blood cell, function to clot blood and stop
bleeding.
d. The majority of white blood cells only activate during the age of puberty,
which explains why children and elderly are particulary susceptible to dis-
ease.: A
2. *In testing how quickly a rat dies by the amount of poison it eats, which of the
following is the independent variable and which is the dependent variable?*
A. How quickly the rat dies is the independent variable; the amount of poison
is the dependent variable.
B. The amount of poison is the independent variable; how quickly the rat dies
is the dependent variable.
C. Whether the rat eats the poison is the independent variable; how quickly the
rat dies is the dependent variable.
D. The cage the rat is kept in is the independent variable; the amount of poison
is the dependent variable.: B
3. *Which of the following are functions of the urinary system?*
*I. Synthesizing calcitrol and secreting erythropoeitin.
II Regulating the concentrations of sodium, potassium, chloride, calcium, and
other ions.
III. Reabsorbing or secreting hydrogen ions and bicarbonate.
IV. Detecting reductions in blood volume and pressure*
,A. I, II, & III
B. II & III
, C. II, III, & IV
D. All of the above: D
4. *Which of the following structures is unique to eukaryotic cells?*
A. Cell walls
B. Nuclei
C. Cell membranes
D. Organelles: B
5. *Which of the cellular organelle used for digestion to recycle materials?*
A. The Golgi apparatus
B. The Lysosome
C. The Centrioles
D. The Mitochondria: B
6. *A rock has a mass of 14.3 grams (g) and a volume of 5.4 cm^3, what is its
density?*
A. 8.90 g/cm^3
B. 0.38 g/cm^3'
C. 77.22 g/cm^3
D. 2.65 g/cm^3: D
7. *Why do arteries have valves?*
A. They have valves to maintain high blood pressure so that capillaries dissue
nutrients properly.
B. Their valvues are designed to prevent backflow due to their low blood
pressure
3 B/
16
