BIO 181 Final Study Guide (NAU) with all Correct &
100% Verified Answers |Latest Update |Already
Graded A+
What contributes to increased fluidity in the membrane at low temps ? ✔Correct Answer--in
mammals- cholesterol
in plants- phytosterols
Different permeability of molecules across the cell membrane ✔Correct Answer--Simple Diffusion,
Facilitated Diffusion, Active Transport, Passive Transport
Simple Diffusion ✔Correct Answer--them movement of a solute across the cell membrane without
the aid of a transport protein.
Facilitated Diffusion ✔Correct Answer--a method of passive transport of solute down the gradient
that uses a transport protein
Active Transport ✔Correct Answer--the transport of a solution across the
Passive Transport ✔Correct Answer--the transport of a substance of membrane that does not
require an input of energy (Simple and Facilitated Diffusion)
What molecules affect osmolarity of a solution, and the conditions necessary for osmosis versus
diffusion. ✔Correct Answer--isotonic, hypertonic, and hypotonic
Isotonic Molecule ✔Correct Answer--Condition in which the solute concentrations on both sides of
the plasma membrane are equal, which does not cause a cell to shrink or swell
Hypertonic Molecule ✔Correct Answer--any solution that has a higher solute concentration
relative to another solution
Hypotonic Molecule ✔Correct Answer--any solution that has a lower solute concentration relative
to another solution
Membrane Transport ✔Correct Answer--the movement of ions and molecules across the biological
membranes.
Selectively Peramability ✔Correct Answer--the property of membranes that allows the passage of
certain ions or molecules but not others.
Primary Active Transport ✔Correct Answer--a type of transport that involves pumps that directly
use energy to transport a solute against a gradient
Secondary Active Transport ✔Correct Answer--a type of membrane transport that involves the
utilization of a pre-existing gradient to drive the active transport of another solute
What membrane proteins transport ions or molecules against their concentration gradient and
conduct a transformational change ? ✔Correct Answer--a pump (used in Primary Active Transport)
100% Verified Answers |Latest Update |Already
Graded A+
What contributes to increased fluidity in the membrane at low temps ? ✔Correct Answer--in
mammals- cholesterol
in plants- phytosterols
Different permeability of molecules across the cell membrane ✔Correct Answer--Simple Diffusion,
Facilitated Diffusion, Active Transport, Passive Transport
Simple Diffusion ✔Correct Answer--them movement of a solute across the cell membrane without
the aid of a transport protein.
Facilitated Diffusion ✔Correct Answer--a method of passive transport of solute down the gradient
that uses a transport protein
Active Transport ✔Correct Answer--the transport of a solution across the
Passive Transport ✔Correct Answer--the transport of a substance of membrane that does not
require an input of energy (Simple and Facilitated Diffusion)
What molecules affect osmolarity of a solution, and the conditions necessary for osmosis versus
diffusion. ✔Correct Answer--isotonic, hypertonic, and hypotonic
Isotonic Molecule ✔Correct Answer--Condition in which the solute concentrations on both sides of
the plasma membrane are equal, which does not cause a cell to shrink or swell
Hypertonic Molecule ✔Correct Answer--any solution that has a higher solute concentration
relative to another solution
Hypotonic Molecule ✔Correct Answer--any solution that has a lower solute concentration relative
to another solution
Membrane Transport ✔Correct Answer--the movement of ions and molecules across the biological
membranes.
Selectively Peramability ✔Correct Answer--the property of membranes that allows the passage of
certain ions or molecules but not others.
Primary Active Transport ✔Correct Answer--a type of transport that involves pumps that directly
use energy to transport a solute against a gradient
Secondary Active Transport ✔Correct Answer--a type of membrane transport that involves the
utilization of a pre-existing gradient to drive the active transport of another solute
What membrane proteins transport ions or molecules against their concentration gradient and
conduct a transformational change ? ✔Correct Answer--a pump (used in Primary Active Transport)
