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WorksheetsPhysiology SI 4
Total questions: 41
Worksheet time: 29mins
What is the concentration of a cell?
300 M
350
250
200
Why is water transported into a hypertonic compartment?
Osmotic pressure is higher in hypertonic compartment
osmotic pressure is higher in hypotonic compartment
osmotic pressure is lower in hypertonic compartment
osmotic pressure is lower in hypotonic compartment
What is the normal range of osmolarity?
200-350
280-300
100-200
300-350
A solution that is less than 280 M is said to be?
hypertonic
hypotonic
isotonic
a solution greater than 300 is said to be
isotonic
hypertonic
hypotonic
osmoles of solute/ kg of solvent
osmolality
osmolarity
Molecule Y binds to receptor Y and stimulates the receptor. Molecule Y is a...
agonist
blocker
antagonist
molecule Y MUST bind to receptor Z
Receptor X increases blood pressure. If an antagonist binds to receptor X, what can we expect?
increase in blood pressure
decrease in blood pressure
no change
Why is water is transported out of hypotonic compartments?
hypotonic compartments have high osmotic pressure
hypertonic compartments have low osmotic pressure
Hypotonic compartments have a lower osmotic pressure
hypertonic compartments have high osmotic pressure
t or f lymph is hypotonic to interstitial fluid
t
f
t or f cystosol is isotonic to the interstial fluid
t
f
plasma is _______ to interstitial fluid
hypertonic
hypotonic
isotonic
hypertonic fluids have a ______ osmotic pressure
lower
higher
passive transport requires ATP
t
f
passive transport is transport down a gradient from low to high
f
t
triglycerides can be transported into the cell via passive transport
true
false
O2 and CO2 are large molecules that are not permeable to the cell membrane
true
false
Osmosis is the transport of what across a membrane?
salt
ions
oxygen
water
Why can't ions permeate the cell membrane?
they can
charged makes them water soluble
charged makes them lipid insoluble
charged makes them lipid soluble
In Osmosis EQUAL movement of water IN and OUT of the cell causes...
Isotonic Cells
Hypotonic Cells
Hypertonic Cells
Which direction will the water move to create an isotonic state?
from side A to side B
from side B to side A
already in an isotonic state
from side A to side B back to side A
osmotic pressure is a _____ force
pushing
pulling
Which will increase transport?
interstitial fluid = 70 M of substance X cytosol = 30 M of substance X
interstitial fluid = 70 M of substance X cytosol = 20 M of substance X
interstitial fluid = 70 M of substance X cytosol = 40 M of substance X
interstitial fluid = 70 M of substance X cytosol = 70 M of substance X
select the cell with more transport
concentration of extracellular solute = concentration of intracellular solute
concentration in cystol of solute is 70 while the concentration in interstital fluid is 40
concentration in cystol of solute is 70 while the concentration in interstital fluid is 40 but microvilli present
concentration in cystol of solute is 70 while the concentration in interstital fluid is 60
what does more channels do to the cell?
increase permeability
decrease permeability
nothing
T or F Tonicity is unitless
true
false
A patient requires an isotonic IV. Select what you would give to the patient
.9% NaCl
normal saline
lactated ringers
D5 normal saline
what is the osmolarity of D5 lactated ringers?
the same as D5 normal saline
300
1000
600
if a patient needs a hypotonic IV, would you give a 3% NaCl or a .33% NaCL IV
both
.33
3
.9%
Patient X presents to the emergency room with increased intracranial pressure after a fall. What IV will you give them?
2.5% dextrose
.9% NaCl
3% NaCl
Why would you give patient X a hypertonic IV?
so the plasma will become hypotonic and increase osmosis to decrease fluid volume in brain
so the plasma will become hypertonic and increase osmosis to decrease fluid volume in brain
so the plasma will become hypertonic and decrease osmosis to decrease fluid volume in brain
so the plasma will become hypotonic and increase osmosis to increase fluid volume in brain
what type of transport requires ATP?
(a)
+3100 (if you are 2100, you are free to answer)
how does starvation lead to edema? *include tonicity changes
+2100 an open wound leads to bleeding, what does this do to hydrostatic pressure
increase
decrease
nothing
+2100 (if you are 3100 feel free to answer)
What type of IV will you give patient X if their blood pressure is low?
water moves towards the compartment with higher osmotic pressure (higher solute concentration)
true
false
measure of the concentration of solutes is known as
osmolarity
osmolality
osmotic pressure
hydrostatic pressure
true or false: in dilute fluids, osmolarity and osmolality are essentially the same
true
false
what type of IV is used to treat hyponatremia?
3% NaCl
.33% NaCL
.9% NaCl
wait it out
