Bio 93 exam #1 Questions and Answers with
Verified Solutions | Latest Updated 2026
Jim is studying an atom with an 11 protons and 12 neutrons
atomic mass of 23. There are 10
electrons and a net positive
charge
(+1). Which of the following best
describes the number of protons
and
neutrons in the nucleus?
11 protons and 12 neutrons
11 neutrons and 12 protons
10 protons and 13 neutrons
any number of protons and
neutrons
that sum to 23
What accounts for the polarity of a The electrons are not shared equally
water molecule? between the
- There are more hydrogens atoms oxygen and hydrogens
relative to oxygen
- Hydrogens donate an electron to
oxygen making an ionic bond
- The electrons are not shared
equally between the oxygen and
hydrogens
- The hydrogen bonds between
oxygen and hydrogens
, What type of molecule would molecules that have regions with + or -
dissolve best in water? charges
-hydrophobic molecules
-non-polar molecules
-molecules that have regions with
+
or - charges
-saturated hydrocarbon molecules
A pharmacology research scientist methyl
is
developing a new drug compound
and he would like to make her
compound more hydrophilic by
adding on a specific functional
group. Which of the following
functional groups would she want
to
avoid?
carbonyl
hydroxyl
methyl
Carboxyl
Verified Solutions | Latest Updated 2026
Jim is studying an atom with an 11 protons and 12 neutrons
atomic mass of 23. There are 10
electrons and a net positive
charge
(+1). Which of the following best
describes the number of protons
and
neutrons in the nucleus?
11 protons and 12 neutrons
11 neutrons and 12 protons
10 protons and 13 neutrons
any number of protons and
neutrons
that sum to 23
What accounts for the polarity of a The electrons are not shared equally
water molecule? between the
- There are more hydrogens atoms oxygen and hydrogens
relative to oxygen
- Hydrogens donate an electron to
oxygen making an ionic bond
- The electrons are not shared
equally between the oxygen and
hydrogens
- The hydrogen bonds between
oxygen and hydrogens
, What type of molecule would molecules that have regions with + or -
dissolve best in water? charges
-hydrophobic molecules
-non-polar molecules
-molecules that have regions with
+
or - charges
-saturated hydrocarbon molecules
A pharmacology research scientist methyl
is
developing a new drug compound
and he would like to make her
compound more hydrophilic by
adding on a specific functional
group. Which of the following
functional groups would she want
to
avoid?
carbonyl
hydroxyl
methyl
Carboxyl
