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HomeTest Bank Test Bank For Vander’s Human Physiology 13TH EDITION | See Newer Edition by Eric Widmaier and Hershel Raff and Kevin Strang
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Test Bank For Visual Essentials Of Anatomy & Physiology Plus MasteringA&P With EText — Access Card Package by Frederic H. Martini, University of Hawaii at Manoa William C. Ober, Washington and Lee University Edwin F. Bartholomew Judi L. Nath, Lourdes University $35.00
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Test Bank For Vander’s Human Physiology 13TH EDITION | See Newer Edition by Eric Widmaier and Hershel Raff and Kevin Strang

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Category: Test Bank Tag: Vander’s Human Physiology 13TH EDITION | See Newer Edition by Eric Widmaier and Hershel Raff and Kevin Strang
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Student: ___________________________________________________________________________
1. Which correctly describes the structure of an atom?
A. There are always the same number of protons and neutrons.
B. There are always the same number of protons and electrons.
C. There are always the same number of neutrons and electrons.
D. The number of protons, neutrons, and electrons is always the same
E. There are never the same number of neutrons and protons.
2. What directly determines an atom’s identity?
A. the number of electrons
B. the number of neutrons
C. the number of protons
D. the number of bonds it can form
E. the ratio of protons to electrons
3. Carbon-12 and carbon-14 are isotopes. How are they different from each other?
A. different numbers of protons
B. different numbers of neutrons
C. different numbers of electrons
D. they can form different numbers of chemical bonds
E. different number of energy shells
4. Which is a covalent bond?
A. two atoms share inner-orbit electrons with each other
B. a bond between water molecules
C. a bond between two oppositely charged ions
D. a bond between two free radicals
E. two atoms share outer orbit electrons with each other
5. Ions are
A. electrically neutral.
B. electrically charged.
C. formed by the gain or loss of protons from the nucleus.
D. insoluble in water.
E. nonpolar atoms.
6. When magnesium loses electrons to become an ion, what does it become?
A. a covalent molecule
B. a cation
C. an anion
D. a new element
E. a free radical
7. If a sports beverage advertises that it replaces the body’s electrolytes, what does the drink contain?
A. sugars that were broken down for energy
B. ionic forms of mineral elements
C. lipids that form the membranes of cells
D. oxygen and gases used by metabolism
E. vitamins
8. Of these major ions found in the body, which one carries a negative charge?
A. Chloride
B. Sodium
C. Potassium
D. Hydrogen
E. Calcium
9. Which describes a characteristic of free radicals?
A. They rapidly oxidize other atoms by removing an electron.
B. They are inert molecules that don’t interact readily with other molecules.
C. They contain two electrons in the outermost orbital.
D. They have extra neutrons in their nuclei.
E. They are found in high quantities in most sports drinks.
10. Which is true about electrolytes?
A. They are neutral atoms.
B. They conduct electricity when dissolved in water.
C. They are found in pure water.
D. They have equal numbers of protons and electrons.
E. They are insoluble in water.
11. Which of the following is not true of a polar chemical bond?
A. It is covalent
B. It is ionized
C. It has opposite electrical charge at each end
D. It has no net electrical charge
12. Which best describes a hydrolysis reaction?
A. Molecules are broken down into smaller ones by breaking covalent bonds within water molecules and
transferring hydrogen atoms and hydroxyl groups to the smaller ones.
B. Electrically-charged molecules separate into ions when they dissolve in water, and then hydrogen ions and
hydroxyl groups covalently attach themselves to the oppositely-charged ions.
C. Large molecules are assembled from smaller ones by breaking water into hydrogen and hydroxyl ions.
D. Dissolving a large molecule in water reduces it to its individual atoms.
E. The breaking of hydrogen bonds between any two molecules.
13.
Oil spilled into the ocean does not easily disperse, but rather clumps into an oil slick. Which of the following explains why this occurs?
A. Oil is composed mainly of hydrophilic molecules.
B. Oil is composed mainly of nonpolar molecules.
C. Oil has no hydrogen in its molecular structure, so it can’t form hydrogen bonds with water.
D. Water is hydrophobic.
E. Electrons are shared unequally between carbon and hydrogen atoms.
14. Molecules that have properties of both polar and nonpolar molecules are called
A. hydrophobic
B. hydrophilic
C. amphipathic
D. unipolar
E. bipolar
15. Compounds A, B and C have molecular weights of 10, 50 and 100 respectively. If 5 grams of each
compound were put into 1 liter of water, which compound will have the greatest molar concentration?
A. Compound A
B. Compound B
C. Compound C
D. All will have the same molar concentration
16. The pH of a solution
A. is a measure of the concentration of hydrogen atoms in the solution.
B. is a measure of the concentration of hydrogen ions bound to other molecules in the solution.
C. is a measure of the concentration of free hydrogen ions in the solution.
D. increases as the acidity of the solution increases.
E. increases as the free hydrogen ion concentration in the solution increases.
17. Most of the body weight of an average young adult male is what substance?
A. Water
B. Protein
C. Minerals
D. Lipids
E. Carbohydrates
18. Which is true about the composition of organic molecules?
A. They always contain oxygen.
B. They always contain carbon.
C. They are always macromolecules.
D. They never contain hydrogen.
E. They never contain oxygen.
19. Carbohydrates:
A. have carbon and oxygen atoms in equal proportions.
B. are the major organic molecules of the body by mass.
C. are nonpolar molecules.
D. are defined by the inclusion of nitrogen in their structure.
E. are composed of only carbon and hydrogen atoms.
2

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