CSN Biology 189 Exam 1 Questions With Complete
Solutions
Acid Correct Answers A substance that increases the hydrogen
ion concentration of a solution. (H+)
Hydrogen = H+
Adesion Correct Answers Water molecules sticking to other
surfaces.
the attraction between different kinds of molecules.
All Cells have Correct Answers are enclosed by a membrane
and nucleoid
aqueous solution is? Correct Answers a solution in which water
is the solvent
Atom Correct Answers Smallest unit of element.
atoms are characterized by? Correct Answers by protons known
as atomic number
atoms that gain electrons and are negatively charged Correct
Answers anions
atoms that lose electrons become positively charge are? Correct
Answers cations
Base Correct Answers A substance that decreases the hydrogen
ion concentration in a solution.
hydroxide = OH+
, Biosphere Correct Answers All region earth water, crust, and
atmosphere that hold organism.
Cell are organism basic units of? Correct Answers structure and
functions
Cell Correct Answers Smallest unit of life and is singular
Cohesion Correct Answers the sticking together of particles.
Water molecules sticking to each other.
Colloid is Correct Answers is a stable suspension of fine
particles in a liquid
Community Correct Answers All species living in particular
area.
Covalent bonding is? Correct Answers strongest bond; they
share pairs of electrons on other most cell
single bond = 2 electrons; double bond = 4 electrons
Ecosystem Correct Answers All species in specified area and
has physical exchange of energy and nutrients.
ecosystem includes two major process what are they? Correct
Answers Cycling of nutrients and material acquired by plants.
Electronegativity are? Correct Answers strength protons to
elections to have no unpaired
Solutions
Acid Correct Answers A substance that increases the hydrogen
ion concentration of a solution. (H+)
Hydrogen = H+
Adesion Correct Answers Water molecules sticking to other
surfaces.
the attraction between different kinds of molecules.
All Cells have Correct Answers are enclosed by a membrane
and nucleoid
aqueous solution is? Correct Answers a solution in which water
is the solvent
Atom Correct Answers Smallest unit of element.
atoms are characterized by? Correct Answers by protons known
as atomic number
atoms that gain electrons and are negatively charged Correct
Answers anions
atoms that lose electrons become positively charge are? Correct
Answers cations
Base Correct Answers A substance that decreases the hydrogen
ion concentration in a solution.
hydroxide = OH+
, Biosphere Correct Answers All region earth water, crust, and
atmosphere that hold organism.
Cell are organism basic units of? Correct Answers structure and
functions
Cell Correct Answers Smallest unit of life and is singular
Cohesion Correct Answers the sticking together of particles.
Water molecules sticking to each other.
Colloid is Correct Answers is a stable suspension of fine
particles in a liquid
Community Correct Answers All species living in particular
area.
Covalent bonding is? Correct Answers strongest bond; they
share pairs of electrons on other most cell
single bond = 2 electrons; double bond = 4 electrons
Ecosystem Correct Answers All species in specified area and
has physical exchange of energy and nutrients.
ecosystem includes two major process what are they? Correct
Answers Cycling of nutrients and material acquired by plants.
Electronegativity are? Correct Answers strength protons to
elections to have no unpaired
