APHY 101 Ch 2: Chemistry Ivy Tech Exam
Questions with Complete Solutions
explain why chemistry is an important part of the study of physiology - CORRECT
ANSWER-all the cells in your organs are composed of chemicals and chemical
reactions are involved in all of your body's movements and cycles
biochemistry - CORRECT ANSWER-study of chemical composition and reactions of
living matter
metabolism - CORRECT ANSWER-sum total of all chemical reactions occurring in the
body's cells; anabolism + catabolism = metabolism
anabolism - CORRECT ANSWER-Energy requiring phase of metabolism, in which
atoms or molecules combine to form a larger, more complex molecule; A + B -> AB
(synthesis reaction); always involves bond formation and storing energy
catabolism - CORRECT ANSWER-Energy releasing phase of metabolism in which a
molecule is broken down into smaller molecules; AB -> A + B (reverse of synthesis
reactions); always involves breaking of bonds and releasing energy
Involves breakings of bonds and releasing energy - CORRECT ANSWER-catabolism
organic - CORRECT ANSWER-contains carbon; unique to living systems
inorganic - CORRECT ANSWER-Water, salts, bases and acids
, most important property of any chemical for APHY - CORRECT ANSWER-does it
dissolve in water? if yes - hydrophilic (water-loving); if no - hydrophobic (water-hating)
important because if a chemical is able to dissolve in water (hydrophilic), then cell
membranes can regulate its movement into or out of the cell
water - CORRECT ANSWER-most abundant and important inorganic compound (60-
80% volume of living cells)
most abundant and important inorganic compound - CORRECT ANSWER-water
properties of water - CORRECT ANSWER-absorb and release heat slowly, participates
in chemical reactions, and cushions body organs.
Hydrophilic - CORRECT ANSWER-Water loving
Hydrophobic - CORRECT ANSWER-Water hating
Polar - CORRECT ANSWER-has an uneven distribution of elctron density
Solvent - CORRECT ANSWER-the component of a solution that is present in greatest
amount; Ex: the ___ for seawater is water and the solute is salt
Solute - CORRECT ANSWER-the minor component in a solution, dissolved in the
solvent; Ex: The solvent for lemonade is water and the _________(s) are sugar and
lemon juice
Solution - CORRECT ANSWER-homogeneous mixture composed of a solute and a
solvent; Ex: the solvent for air is nitrogen (78.09% ) and the solutes include oxygen
(20.95%), water (1%), and carbon dioxide (0.039%)
Questions with Complete Solutions
explain why chemistry is an important part of the study of physiology - CORRECT
ANSWER-all the cells in your organs are composed of chemicals and chemical
reactions are involved in all of your body's movements and cycles
biochemistry - CORRECT ANSWER-study of chemical composition and reactions of
living matter
metabolism - CORRECT ANSWER-sum total of all chemical reactions occurring in the
body's cells; anabolism + catabolism = metabolism
anabolism - CORRECT ANSWER-Energy requiring phase of metabolism, in which
atoms or molecules combine to form a larger, more complex molecule; A + B -> AB
(synthesis reaction); always involves bond formation and storing energy
catabolism - CORRECT ANSWER-Energy releasing phase of metabolism in which a
molecule is broken down into smaller molecules; AB -> A + B (reverse of synthesis
reactions); always involves breaking of bonds and releasing energy
Involves breakings of bonds and releasing energy - CORRECT ANSWER-catabolism
organic - CORRECT ANSWER-contains carbon; unique to living systems
inorganic - CORRECT ANSWER-Water, salts, bases and acids
, most important property of any chemical for APHY - CORRECT ANSWER-does it
dissolve in water? if yes - hydrophilic (water-loving); if no - hydrophobic (water-hating)
important because if a chemical is able to dissolve in water (hydrophilic), then cell
membranes can regulate its movement into or out of the cell
water - CORRECT ANSWER-most abundant and important inorganic compound (60-
80% volume of living cells)
most abundant and important inorganic compound - CORRECT ANSWER-water
properties of water - CORRECT ANSWER-absorb and release heat slowly, participates
in chemical reactions, and cushions body organs.
Hydrophilic - CORRECT ANSWER-Water loving
Hydrophobic - CORRECT ANSWER-Water hating
Polar - CORRECT ANSWER-has an uneven distribution of elctron density
Solvent - CORRECT ANSWER-the component of a solution that is present in greatest
amount; Ex: the ___ for seawater is water and the solute is salt
Solute - CORRECT ANSWER-the minor component in a solution, dissolved in the
solvent; Ex: The solvent for lemonade is water and the _________(s) are sugar and
lemon juice
Solution - CORRECT ANSWER-homogeneous mixture composed of a solute and a
solvent; Ex: the solvent for air is nitrogen (78.09% ) and the solutes include oxygen
(20.95%), water (1%), and carbon dioxide (0.039%)
