ANATOMY AND PHYSIOLOGY 2ND EDITION
TEST BANK | OPENSTAX 2025 UPDATE ||
COMPLETE QUESTIONS AND CORRECT
ANSWERS <LATEST EDITION>
Description: Comprehensive test bank for Anatomy and Physiology, 2nd
Edition by OpenStax. Updated 2025 version with chapter-based practice
questions, diagrams, physiology explanations, and correct answers.
Course: Anatomy and Physiology
Keywords:
OpenStax anatomy physiology 2nd edition
A&P exam questions 2025
test bank anatomy 2025
physiology practice exam
Subatomic particle carrying a negative charge - ANSWER ✅Electron
✅
Number of electrons in the outermost shell of an atom with 15 electrons -
ANSWER 5
Innermost shell of an atom - ANSWER ✅Holds 2 electrons
✅
Electrically neutral atom with atomic number 8 and mass number 17 has -
ANSWER 8 protons
What predicts the element to which an atom belongs? - ANSWER ✅Total
number of protons
✅
Four most common elements comprising 96% of the body's mass - ANSWER
Oxygen, nitrogen, hydrogen, carbon
Atom of iron with atomic number 26 - ANSWER ✅Iron has 26 protons
Atomic number represents the number of - ANSWER ✅Protons in an atom
, Contributes to the calculation of the mass number - ANSWER ✅Sum of
protons and neutrons
✅
Number of protons in an isotope of nitrogen with atomic number 7 and mass
number 14 - ANSWER 7
Carbon-13 - ANSWER ✅Isotope of carbon with a mass number of 13
Solid blood cells settling out of liquid blood plasma - ANSWER ✅Blood is a
suspension
Atoms that satisfy the octet rule - ANSWER ✅Inert
Inert atom - ANSWER ✅Atom with filled valence shell
Atom with 3 electrons in its valence shell - ANSWER ✅Atomic number of 13
✅
Two or more atoms of the same element that are chemically combined -
ANSWER Molecules
Na+ - ANSWER ✅Ion
Ionic bonds result from - ANSWER ✅Transfer of electrons from a metal atom
to a nonmetal atom
Strongest bond - ANSWER ✅Ionic
Structural formula N≡N - ANSWER ✅Two atoms of nitrogen share three
pairs of electrons
Atoms of oxygen share electrons equally - ANSWER ✅Nonpolar covalent
bond
Dipole - ANSWER ✅Polar molecule
Hydrogen bonds may occur between - ANSWER ✅Polar molecules
,Bond responsible for surface tension of water - ANSWER ✅Hydrogen bond
✅
NaCl in the chemical reaction NaOH + HCl → NaCl + H2O - ANSWER
Product
Transfer of an electron from sodium to chlorine - ANSWER ✅Chemical
energy
Reaction that releases energy - ANSWER ✅Exergonic reaction
✅
Process of digesting food breaks large food particles into smaller particles -
ANSWER Catabolic reaction
Oxidation-reduction (redox) reactions - ANSWER ✅Electron exchange occurs
Exchange reaction - ANSWER ✅AB + CD → BA + DC
Increased reactant concentration - ANSWER ✅Increases rate of reaction
Biological catalyst that lowers activation energy - ANSWER ✅Enzyme
Enzyme function - ANSWER ✅Speeds chemical reactions by lowering
activation energy
✅
Property of water that helps keep body temperature stabilized - ANSWER
Heat capacity
Compound not likely to dissolve in water - ANSWER ✅Nonpolar covalent
compound
Water is most likely to dissolve a solute that is - ANSWER ✅Hydrophilic
Hydrogen ion donor - ANSWER ✅Acid
Chemical that binds free hydrogen ions in solution - ANSWER ✅Base
Blood pH approximately - ANSWER ✅7.4
, ✅
Solution that releases 10 times more hydrogen ions than pH 7 - ANSWER
pH 5
✅
Solution that releases 100 times less hydrogen ions than pH 9 - ANSWER
pH 11
Organ systems that work to correct pH imbalances - ANSWER ✅Respiratory
and urinary
Function of a buffer system - ANSWER ✅Prevents large swings in pH when
an acid or base is added
Effect of a buffer on a solution - ANSWER ✅Resists changes in pH
Salts are held together by - ANSWER ✅Ionic bonds
✅Electrolytes
Ionic compounds dissociate in water into - ANSWER
Building blocks for organic compounds - ANSWER ✅Monomers
Building block of a lipid - ANSWER ✅Fatty acid
Fatty acid with the most double bonds - ANSWER ✅Polyunsaturated fatty
acid
Fatty acid with no double covalent bonds - ANSWER ✅Saturated fatty acid
Basis for the body's steroids - ANSWER ✅Cholesterol
Monomers for proteins - ANSWER ✅Amino acids
Group that makes each amino acid unique - ANSWER ✅"R" group
Type of polar covalent bond linking amino acids - ANSWER ✅Peptide bond
Three-dimensional shape of a protein - ANSWER ✅Tertiary structure
TEST BANK | OPENSTAX 2025 UPDATE ||
COMPLETE QUESTIONS AND CORRECT
ANSWERS <LATEST EDITION>
Description: Comprehensive test bank for Anatomy and Physiology, 2nd
Edition by OpenStax. Updated 2025 version with chapter-based practice
questions, diagrams, physiology explanations, and correct answers.
Course: Anatomy and Physiology
Keywords:
OpenStax anatomy physiology 2nd edition
A&P exam questions 2025
test bank anatomy 2025
physiology practice exam
Subatomic particle carrying a negative charge - ANSWER ✅Electron
✅
Number of electrons in the outermost shell of an atom with 15 electrons -
ANSWER 5
Innermost shell of an atom - ANSWER ✅Holds 2 electrons
✅
Electrically neutral atom with atomic number 8 and mass number 17 has -
ANSWER 8 protons
What predicts the element to which an atom belongs? - ANSWER ✅Total
number of protons
✅
Four most common elements comprising 96% of the body's mass - ANSWER
Oxygen, nitrogen, hydrogen, carbon
Atom of iron with atomic number 26 - ANSWER ✅Iron has 26 protons
Atomic number represents the number of - ANSWER ✅Protons in an atom
, Contributes to the calculation of the mass number - ANSWER ✅Sum of
protons and neutrons
✅
Number of protons in an isotope of nitrogen with atomic number 7 and mass
number 14 - ANSWER 7
Carbon-13 - ANSWER ✅Isotope of carbon with a mass number of 13
Solid blood cells settling out of liquid blood plasma - ANSWER ✅Blood is a
suspension
Atoms that satisfy the octet rule - ANSWER ✅Inert
Inert atom - ANSWER ✅Atom with filled valence shell
Atom with 3 electrons in its valence shell - ANSWER ✅Atomic number of 13
✅
Two or more atoms of the same element that are chemically combined -
ANSWER Molecules
Na+ - ANSWER ✅Ion
Ionic bonds result from - ANSWER ✅Transfer of electrons from a metal atom
to a nonmetal atom
Strongest bond - ANSWER ✅Ionic
Structural formula N≡N - ANSWER ✅Two atoms of nitrogen share three
pairs of electrons
Atoms of oxygen share electrons equally - ANSWER ✅Nonpolar covalent
bond
Dipole - ANSWER ✅Polar molecule
Hydrogen bonds may occur between - ANSWER ✅Polar molecules
,Bond responsible for surface tension of water - ANSWER ✅Hydrogen bond
✅
NaCl in the chemical reaction NaOH + HCl → NaCl + H2O - ANSWER
Product
Transfer of an electron from sodium to chlorine - ANSWER ✅Chemical
energy
Reaction that releases energy - ANSWER ✅Exergonic reaction
✅
Process of digesting food breaks large food particles into smaller particles -
ANSWER Catabolic reaction
Oxidation-reduction (redox) reactions - ANSWER ✅Electron exchange occurs
Exchange reaction - ANSWER ✅AB + CD → BA + DC
Increased reactant concentration - ANSWER ✅Increases rate of reaction
Biological catalyst that lowers activation energy - ANSWER ✅Enzyme
Enzyme function - ANSWER ✅Speeds chemical reactions by lowering
activation energy
✅
Property of water that helps keep body temperature stabilized - ANSWER
Heat capacity
Compound not likely to dissolve in water - ANSWER ✅Nonpolar covalent
compound
Water is most likely to dissolve a solute that is - ANSWER ✅Hydrophilic
Hydrogen ion donor - ANSWER ✅Acid
Chemical that binds free hydrogen ions in solution - ANSWER ✅Base
Blood pH approximately - ANSWER ✅7.4
, ✅
Solution that releases 10 times more hydrogen ions than pH 7 - ANSWER
pH 5
✅
Solution that releases 100 times less hydrogen ions than pH 9 - ANSWER
pH 11
Organ systems that work to correct pH imbalances - ANSWER ✅Respiratory
and urinary
Function of a buffer system - ANSWER ✅Prevents large swings in pH when
an acid or base is added
Effect of a buffer on a solution - ANSWER ✅Resists changes in pH
Salts are held together by - ANSWER ✅Ionic bonds
✅Electrolytes
Ionic compounds dissociate in water into - ANSWER
Building blocks for organic compounds - ANSWER ✅Monomers
Building block of a lipid - ANSWER ✅Fatty acid
Fatty acid with the most double bonds - ANSWER ✅Polyunsaturated fatty
acid
Fatty acid with no double covalent bonds - ANSWER ✅Saturated fatty acid
Basis for the body's steroids - ANSWER ✅Cholesterol
Monomers for proteins - ANSWER ✅Amino acids
Group that makes each amino acid unique - ANSWER ✅"R" group
Type of polar covalent bond linking amino acids - ANSWER ✅Peptide bond
Three-dimensional shape of a protein - ANSWER ✅Tertiary structure
