BIOL3204 OKSTATE EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED
True or False: Adenosine triphosphate (ATP) is an example of a protein.
True
What is the space that is surrounded by the tissue wall of hollow organs?
Lumen
Where are microvilli typically found?
In cells that participate in absorption
Close examination of an organ reveals a tissue lining composed of several layers
of cells. These cell layers do not contain any blood vessels, and one surface of
the tissue faces the internal cavity of the organ. Which best describes this
tissue?
Epithelial tissue
A reaction mediated by Enzyme A is reduced at increasing concentrations of
Substance Y, but the reaction can recover when much more of the activating
ligand for Enzyme A is supplied. Which best describes the role of Substance Y in
this reaction?
Competitive inhibitor
True or False: Generally, extracellular fluid has lower levels of K+ than
intracellular fluid.
True
, True or False: Glycolysis takes place in the mitochondria
True
The ________ of glycogen from many glucose molecules is an ________ reaction.
synthesis; endergonic
Oxidative phosphorylation occurs ________; the metabolically useful end product
is ________.
in the mitochondria due to the electron transport system; ATP
A cell releases a signal. Which property is most important in defining that signal
as having autocrine and paracrine action?
The cell that responds to the signal
Which best describes how facilitated diffusion and active transport differ?
ATP is necessary for active transport, but not for facilitated diffusion.
Select all correct statements about the Na+/K+ pump:
-It transports Na+ out of the cell and K+ into the cell.
-It is present in neurons.
-Its activity requires energy in the form of ATP.
-It exchanges Na+ and K+ in a ratio of 2 Na+ to 3 K+.
-It transports Na+ out of the cell and K+ into the cell.
-It is present in neurons.
-Its activity requires energy in the form of ATP.
True or False: Intracellular and extracellular spaces have similar K+
concentrations.
False
COMPLETE SOLUTIONS VERIFIED
True or False: Adenosine triphosphate (ATP) is an example of a protein.
True
What is the space that is surrounded by the tissue wall of hollow organs?
Lumen
Where are microvilli typically found?
In cells that participate in absorption
Close examination of an organ reveals a tissue lining composed of several layers
of cells. These cell layers do not contain any blood vessels, and one surface of
the tissue faces the internal cavity of the organ. Which best describes this
tissue?
Epithelial tissue
A reaction mediated by Enzyme A is reduced at increasing concentrations of
Substance Y, but the reaction can recover when much more of the activating
ligand for Enzyme A is supplied. Which best describes the role of Substance Y in
this reaction?
Competitive inhibitor
True or False: Generally, extracellular fluid has lower levels of K+ than
intracellular fluid.
True
, True or False: Glycolysis takes place in the mitochondria
True
The ________ of glycogen from many glucose molecules is an ________ reaction.
synthesis; endergonic
Oxidative phosphorylation occurs ________; the metabolically useful end product
is ________.
in the mitochondria due to the electron transport system; ATP
A cell releases a signal. Which property is most important in defining that signal
as having autocrine and paracrine action?
The cell that responds to the signal
Which best describes how facilitated diffusion and active transport differ?
ATP is necessary for active transport, but not for facilitated diffusion.
Select all correct statements about the Na+/K+ pump:
-It transports Na+ out of the cell and K+ into the cell.
-It is present in neurons.
-Its activity requires energy in the form of ATP.
-It exchanges Na+ and K+ in a ratio of 2 Na+ to 3 K+.
-It transports Na+ out of the cell and K+ into the cell.
-It is present in neurons.
-Its activity requires energy in the form of ATP.
True or False: Intracellular and extracellular spaces have similar K+
concentrations.
False
