chapter 2 The Chemistry of Life
Questions and Answers
the atomic number of an element corresponds to the number of ___ - Answer-protons
which of the following chemical bonds result from the unequal sharing of electrons
between two or more atoms? - Answer-polar covalent
molecules with the same numbers and kinds of atoms but differ in the arrangement of
the atoms are known as ___ - Answer-isomers
in the equation for photosynthesis: 6 H2O + 6 CO2 -> C6H12O6 + 6 O2 which of the
following is a reactant? - Answer-H2O
a functional group in organic chemistry is a set of ___ attached to the carbon skeleton
that often determine the properties of an organic compound. - Answer-atoms
an ion composed of 11 protons, 11 neutrons, and 10 electrons would have what
charge? - Answer-+1
what type of bond is responsible for surface tension? - Answer-hydrogen
what is the defining element found in organic compounds? - Answer-carbon
elements that are essential to life but are only required in miniscule amounts are called?
- Answer-trace elements
which chemical releases H+ when dissolved in water? - Answer-an acid
dietary fiber is composed of ___ - Answer-carbohydrates
what type of reaction breaks polymers into their monomer subunits? - Answer-
hydrolysis
the specialized area of an enzyme where substrates bind is called the ___ - Answer-
active site
the presence of___ will minimize changes in pH - Answer-buffers
what does pH measure in a solution? - Answer-concentration of hydrogen ions
what type of solution has a pH of 10? - Answer-a basic solution
the nucleus of an atom contains ___. - Answer-protons and neutrons
Questions and Answers
the atomic number of an element corresponds to the number of ___ - Answer-protons
which of the following chemical bonds result from the unequal sharing of electrons
between two or more atoms? - Answer-polar covalent
molecules with the same numbers and kinds of atoms but differ in the arrangement of
the atoms are known as ___ - Answer-isomers
in the equation for photosynthesis: 6 H2O + 6 CO2 -> C6H12O6 + 6 O2 which of the
following is a reactant? - Answer-H2O
a functional group in organic chemistry is a set of ___ attached to the carbon skeleton
that often determine the properties of an organic compound. - Answer-atoms
an ion composed of 11 protons, 11 neutrons, and 10 electrons would have what
charge? - Answer-+1
what type of bond is responsible for surface tension? - Answer-hydrogen
what is the defining element found in organic compounds? - Answer-carbon
elements that are essential to life but are only required in miniscule amounts are called?
- Answer-trace elements
which chemical releases H+ when dissolved in water? - Answer-an acid
dietary fiber is composed of ___ - Answer-carbohydrates
what type of reaction breaks polymers into their monomer subunits? - Answer-
hydrolysis
the specialized area of an enzyme where substrates bind is called the ___ - Answer-
active site
the presence of___ will minimize changes in pH - Answer-buffers
what does pH measure in a solution? - Answer-concentration of hydrogen ions
what type of solution has a pH of 10? - Answer-a basic solution
the nucleus of an atom contains ___. - Answer-protons and neutrons
