Phisio Chapter 6 TRUE AND False
A one molar solution would contain 6.02 1023 molecules of solute.
TRUE
Active transport proceeds when energy is expended.
TRUE
Active transport proteins are often regulated by phosphorylation.
TRUE
Bulk transport is required for the transport of large polar molecules into or out of cells.
TRUE
Diffusion is more rapid in cells with microvilli compared to cells lacking microvilli.
TRUE
Edema will result if a person has an abnormally low concentration of plasma proteins.
TRUE
Glucose entry into the cell is by facilitated diffusion.
TRUE
In the Na+/K+ pump, three sodium ions from inside the cell must enter the carrier first.
TRUE
Osmosis and simple diffusion do NOT require the actions of carrier proteins
TRUE
Secondary active transport often occurs as a coupled transport process.
TRUE
The calcium pump is also an ATPase enzyme.
TRUE
The charge difference across a membrane produces the membrane potential.
TRUE
The extracellular matrix is made up of collagen, elastin, and a gel-like ground substance.
TRUE
The process in which waste molecules are removed from the blood by having them diffuse through an artificial porous membrane is called dialysis.
TRUE
The rate of diffusion increases as the concentration gradient increases.
TRUE
Antidiuretic hormone is released by the posterior pituitary in response to increased plasma osmolality.
TRUW
Desmosomes are a type of junctional complex.
TRUW
Epithelial cells have a polarity dealing with transport.
TRUW
Facilitated diffusion is unable to transport molecules against a concentration gradient.
TRUW
Freezing-point depression is a measure of osmolality.
TRUW
One mole of solute per liter depresses the freezing point of water by -1.86C.
TRUW
Osmoreceptors are involved in the regulation of blood volume.
TRUW
80% of the extracellular fluid is termed as interstitial fluid.
True
Interstitial fluid is made from blood plasma and returns to blood plasma.
True
Ions like Ca2+ can be second messengers for cell signaling.
true
A 10% dextrose solution is isotonic to plasma.
FALSE
A one molal NaCl solution has the same osmolality as a one molal glucose solution.
FALSE
Because the kidneys are so important for water balance, the plasma membranes of kidney cells have many permanent aquaporins.
FALSE
Gas exchange between the cells and extracellular fluid utilizes active transport.
FALSE
Hypertonic solutions stimulate cellular lysis.
FALSE
ORT is based on understanding transport mechanisms and junctional complexes
FALSE
Simple diffusion is the net diffusion of a solvent.
FALSE
The osmotic pressure exerted by a cell would decrease if the cell synthesized more proteins.
FALSE
