Practice Test #1: Science ATI TEAS
*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 disease. -
A
*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
*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
*Which of the following structures is unique to eukaryotic cells?*
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, A. Cell walls
B. Nuclei
C. Cell membranes
D. Organelles -
B
*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
*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
*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
C. They have valvues due to a leftover trait from evolution that, like the appendix, are
useless.
D. They do not have valves, but veins do -
D
* If the pressure in the pulmonary artery is increased above normal, which chamber of the
heart will be affected first?*
A. Right Atrium
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*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 disease. -
A
*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
*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
*Which of the following structures is unique to eukaryotic cells?*
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, A. Cell walls
B. Nuclei
C. Cell membranes
D. Organelles -
B
*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
*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
*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
C. They have valvues due to a leftover trait from evolution that, like the appendix, are
useless.
D. They do not have valves, but veins do -
D
* If the pressure in the pulmonary artery is increased above normal, which chamber of the
heart will be affected first?*
A. Right Atrium
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