Openstax Anatomy and Physiology Chapter 2 Questions and Correct Answers

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Openstax Anatomy and Physiology
Chapter 2 Questions and Correct
Answers

Question: Acid
Answer: Compound that releases hydrogen ions (H+) in solution


Question: Activation Energy
Answer: Amount of energy greater than the energy contained in the
reactants, which must be overcome for a reaction to proceed


Question: Adenosine Triphosphate (ATP)
Answer: Nucleotide containing ribose and an adenine base that is
essential in energy transfer


Question: Amino Acid
Answer: Building block of proteins; characterized by an amino and
carboxyl functional groups and a variable side-chain


Question: Anion
Answer: Atom with a negative charge


Question: Atom
Answer: Smallest unit of an element that retains the unique properties of
that element


Question: Atomic Number
Answer: Number of protons in the nucleus of an atom


Question: Base


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Answer: Compound that accepts hydrogen ions (H+) in solution


Question: Bond
Answer: Electrical force linking atoms


Question: Buffer
Answer: Solution containing a weak acid or a weak base that opposes
wide fluctuations in the pH of body fluids


Question: Carbohydrate
Answer: Class of organic compounds built from sugars, molecules
containing carbon, hydrogen, and oxygen in a 1-2-1 ratio


Question: Catalyst
Answer: Substance that increases the rate of a chemical reaction without
itself being changed in the process


Question: Cation
Answer: Atom with a positive charge


Question: Chemical Energy
Answer: Form of energy that is absorbed as chemical bonds form, stored
as they are maintained, and released as they are broken


Question: Colloid
Answer: Liquid mixture in which the solute particles consist of clumps of
molecules large enough to scatter light


Question: Compound
Answer: Substance composed of two or more different elements joined by
chemical bonds


Question: Concentration


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