Test Bank Herlihy The Human Body in Health and Illness 4th Edition
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Herlihy: The Human Body in Health and Illness, 4th Edition
Chapter 2: Basic Chemistry
- Which of the following is located in the orbits surrounding the nucleus?
- Which of the following is a measurement of hydrogen ion concentration [H+]?
- The sharing of electrons is referred to as
- Which element must be present for a substance to be classified as organic?
- A cation is a(n)
|a.||positively charged ion.|
|d.||ion that has an atomic mass of 2.|
- Which of the following is an anion?
- Which ion has 8 protons in the nucleus and 9 electrons in its orbits?
- Which of the following is true of an anion?
|a.||An anion always ionizes to form electrolytes.|
|b.||An anion always has an atomic mass of 15.|
|c.||An anion carries a negative charge.|
|d.||Hydrogen ion is an anion.|
- NaCl, table salt, is called a(n)
- Which process refers to the dissociation of NaCl into Na+ and Cl–?
- Which of the following is descriptive of the chemical reaction in the previous question?
|a.||Cation + anion ® electrolyte|
|b.||Electrolyte ® cation + anion|
|c.||Electrolyte + anion ® cation|
|d.||Neutralization of an acid by a base|
- Which of the following is an anion?
- Which of the following represents bicarbonate, an anion that is important in acid-base regulation?
- Which compound is the universal solvent?
- [H+] refers to
|a.||an isotope of hydrogen.|
|d.||hydrogen ion concentration.|
- Which compound is a waste product of cellular metabolism?
- Which of the following increases the speed of a chemical reaction, but is itself not used up in the chemical reaction?
- What is the energy-transferring molecule?
- Which of the following acts as a catalyst?
- The word ferrous refers to
|a.||an acid solution.|
|b.||an alkaline solution.|
|a.||is an anion.|
|b.||is an electrolyte.|
|c.||bonds ionically with Ca2+.|
|d.||is a cation.|
- Which of the following carries no net electrical charge?
|c.||A polar molecule|
- Which of the following illustrates antacid activity?
|a.||NaCl ® Na+ + Cl–|
|b.||HCl ® H+ + Cl–|
|c.||Mg(OH)2 + HCl ® MgCl2 + H2O|
|d.||KCl ® K+ + Cl–|
- Zinc, selenium, cobalt, and iodine are all
|d.||isotopes of hydrogen.|
- Iron is a(n)
- Which of the following is described by this statement? One atom of oxygen bonds covalently with two atoms of hydrogen.
|d.||Neutralization of an acid with a base|
- A solution that has a pH of 6.8
|a.||has a neutral pH.|
- What happens when HCl is added to a solution with a pH of 7.45?
|a.||The pH will be higher than 7.45.|
|b.||The solution will become more alkaline.|
|c.||The [H+] of the solution will increase.|
|d.||The pH will be higher than 8.0.|
- Which pH is considered neutral?
- Blood has a pH range of 7.35 to 7.45 and therefore
|b.||is three to four times more viscous (thicker) than water.|
|c.||has a pH that is similar to urine and stomach contents.|
- In which of the following is the number of hydrogen ions greater?
|a.||An alkaline solution|
|b.||A basic solution|
- An atom has 2 protons, 2 neutrons, and 2 electrons; it has an atomic
|a.||number of 6.|
|b.||mass of 2.|
|c.||mass of 4.|
|d.||number of 4.|
- An atom has 1 proton, 0 neutrons, and 1 electron; its isotope has
|a.||2 electrons and 0 neutrons.|
|b.||2 protons and 2 neutrons.|
|c.||1 proton and 1 neutron.|
|d.||2 protons and 0 neutrons.|
- An atom has 1 proton, 0 neutrons, and 1 electron. What will convert this atom to a cation?
|a.||Add 1 neutron.|
|b.||Add 1 proton.|
|c.||Lose 1 electron.|
|d.||Add 1 proton and 2 neutrons, and eliminate 1 electron.|
- The heart pushes blood into the blood vessels as chemical energy is converted to which form of energy?
- Which of the following best describes a solution in which water is the solvent?
- Which of the following best describes a solution in which alcohol is the solvent?
- A combination of sugar granules and iron filings is best described as a(n)
- Which of the following can neutralize H+?
- Which of the following is incorrect?
|a.||Mixtures: suspension, colloidal suspension, solution|
|b.||Ions: Na+, Cl–, Ca2+, K+|
|c.||Electrolytes: NaCl, KCl, CaCl2, HCO3–|
|d.||Cations: Na+, Ca2+, K+, H+|
- The ionization of salt (NaCl)
|a.||produces an acid and a base.|
|b.||produces an electrolyte.|
|d.||produces a cation and an anion.|
- Which of the following is true of iodine and radioactive iodine?
|a.||Both have the same atomic numbers.|
|b.||Both have the same atomic masses.|
|c.||Neither have electrons in their orbits.|
|d.||Both create radiation hazards.|
- Which of the following is true of Na+?
|a.||Called the sodium ion|
|b.||Has fewer protons than electrons|
|c.||Called an anion|
- Which of the following is true of Cl–?
|a.||Is an electrolyte|
|b.||Is an anion|
|d.||Is an electrolyte|
- Which of the following is most descriptive of HCl?
|a.||Is called bicarbonate|
|b.||Is an acid|
|d.||Dissociates into Na+ and Cl–|
- Water is a(n)
|d.||all of the above.|
- An atom that has 3 protons, 4 neutrons, and 3 electrons
|a.||has an atomic mass of 7.|
|b.||is a cation.|
|c.||has an atomic number of 4.|
|d.||has an atomic number of 10.|
- An atom has 3 protons, 4 neutrons, and 3 electrons; another atom has 3 protons, 3 neutrons, and 3 electrons. Which of the following is most descriptive of this pair of atoms?
- An atom that has 4 protons, 4 neutrons, and 4 electrons. It
|a.||has an atomic number of 8.|
|b.||is a cation.|
|c.||has an atomic mass of 12.|
|d.||has an atomic mass of 8.|
|a.||is a buffer, removing H+ from solution.|
|b.||is an energy transfer molecule.|
|c.||is a radioactive isotope of phosphate.|
|d.||ionizes to H+, thereby lowering pH.|
- Which of the following is most descriptive of the nucleus of the atom?
|a.||Contents determine the atomic number|
|b.||Contents determine the atomic mass|
|c.||“Home” of the protons|
|d.||All of the above|
- Which of the following is most descriptive of ionic and covalent?
|a.||Types of bonding in which the electrons are shared|
|b.||Types of bonding in which the electrons are swapped|
|c.||Types of bonding|
|d.||Types of bonding only found in reactions in which H+ is produced|
- An electrolyte
|a.||dissociates into ions.|
|b.||yields only cations.|
|c.||always yields H+ and lowers pH.|
|d.||always removes H+ and increases pH.|
- A catalyst
|a.||is an H+-yielding molecule.|
|b.||is an acid.|
|c.||is an alkali.|
|d.||increases the speed of a chemical reaction.|
- Which of the following is most descriptive of the function of an enzyme?
- A patient with a blood pH of 7.28
|a.||has an excess of H+.|
|b.||has a blood pH that is within normal limits.|
|d.||has a blood pH that indicates a deficiency of acid.|
- A solution with a pH of 8
|a.||is more acidic than blood.|
|b.||is more acidic than stomach contents.|
|c.||has more H+ than urine.|
|d.||is more alkaline than blood.|
- The pH of urine
|a.||is more alkaline than blood.|
|b.||is always acidic.|
|c.||can be acidic or alkaline.|
|d.||is more acidic than stomach contents.|
- The addition of H+ to blood
|a.||increases blood pH.|
|b.||makes the blood more acidic.|
|c.||makes the blood more alkaline.|
|d.||changes the blood pH from 7.4 to 7.8.|
- Blood is called a colloidal suspension because
|a.||it has a pH of 7.4.|
|b.||it is alkaline.|
|c.||of the suspended plasma proteins.|
|d.||of the sodium and chloride ions|
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