BIO 270 Exam 1 JMU Hynd Exam 2025/2026 ACTUAL
COMPREHENSIVE FREQUENTLY MOST TESTED
QUESTIONS AND VERIFIED SOLUTIONS/GET IT
100% ACCURATE!! ALREADY GRADED A+|
NEWEST EXAM | JUST RELEASED!!
A more direct means of expressing solvent concentration is the
osmolarity of a
solution, which is a measure of its total solvent concentration
given in terms of
the mass of particles. (T/F) -
ANSWER-False
____________________ exists when no net movement of any
ions takes place because all passive leaks are exactly balanced
by active pumping. - ANSWER-steady state
Two ATP molecules could provide energy for a sodium-
potassium pump to move ____ ions out of the cell for every
____ ions it moves into the cell. -
ANSWER--6Na+
-3K+
Gap junctions are especially abundant in what kind of tissue? -
ANSWER-cardiac muscle
&
-smooth muscle
, The rate at which substance "X" can diffuse through a
plasma membrane is
inversely proportional to the - ANSWER--
molecular weight of X
The greater the lipid solubility of a substance, the slower the
substance can diffuse through the membrane's lipid bilayer
down its concentration gradient.
(T/F) - ANSWER-False
High demands for ATP make glycolysis alone an insufficient
and inefficient
supplier of power for most cells. (T/F) -
ANSWER-True
What form of endocytosis do white blood cells use in order to
engulf bacteria? -
ANSWER--
phagocytosis
If red blood cells are placed in a(n) ____________________
solution, water will
enter the cells by osmosis. - ANSWER--
hypotonic
COMPREHENSIVE FREQUENTLY MOST TESTED
QUESTIONS AND VERIFIED SOLUTIONS/GET IT
100% ACCURATE!! ALREADY GRADED A+|
NEWEST EXAM | JUST RELEASED!!
A more direct means of expressing solvent concentration is the
osmolarity of a
solution, which is a measure of its total solvent concentration
given in terms of
the mass of particles. (T/F) -
ANSWER-False
____________________ exists when no net movement of any
ions takes place because all passive leaks are exactly balanced
by active pumping. - ANSWER-steady state
Two ATP molecules could provide energy for a sodium-
potassium pump to move ____ ions out of the cell for every
____ ions it moves into the cell. -
ANSWER--6Na+
-3K+
Gap junctions are especially abundant in what kind of tissue? -
ANSWER-cardiac muscle
&
-smooth muscle
, The rate at which substance "X" can diffuse through a
plasma membrane is
inversely proportional to the - ANSWER--
molecular weight of X
The greater the lipid solubility of a substance, the slower the
substance can diffuse through the membrane's lipid bilayer
down its concentration gradient.
(T/F) - ANSWER-False
High demands for ATP make glycolysis alone an insufficient
and inefficient
supplier of power for most cells. (T/F) -
ANSWER-True
What form of endocytosis do white blood cells use in order to
engulf bacteria? -
ANSWER--
phagocytosis
If red blood cells are placed in a(n) ____________________
solution, water will
enter the cells by osmosis. - ANSWER--
hypotonic
