Mastering Biology chapter 5
Osmosis: if a semipermeable membrane is placed between the following solutions
which will decrease in volume?
A: 1.4% (m/v) starch
B: 7.62% (m/v) starch - answer Solution A
Osmosis: Which solution will increase in volume?
C: 9% (m/v) NaCl
D: 12.4% (m/v) NaCl - answer Solution D
exerts the same osmotic pressure as the cellular fluids/ behaves as if it had the same
solute concentration as the cell - answer Isotonic Solution
Behaves as if it had a higher solute concentration than the cell (cause cell to shrink) -
answer Hypertonic Solution
Behaves as if it had a lower solute concentration than the cell (cause cell to swell/burst)
- answer Hypotonic Solution
A red blood cell placed in a hypertonic solution will shrink in a process called - answer
Crenation
A red blood cell in a hypotonic solution will swell and potentially burst in a process
called - answer Hemolysis
what makes the tail (composed of fatty acid or isoprene) molecules hydrophobic? -
answer the density of carbon-hydrogen bonds, unable to interact with water
The phospholipid head consists of a three-carbon molecule called ___ linked to a
phosphate group. The phosphate group is then bonded to another small organic
molecule (ex: amino acid serine) - answer glycerol
(true/false) small nonpolar molecules and even small, uncharged polar molecules
(water, glycerol) can pass through the selectively permeable cell - answer true
(true/false) polar molecules, such as sugars and ions, which have charges, CANNOT
pass through the membrane. - answer true
movement from the area of higher concentration to areas of lower concentration, until
the concentrations are equalized throughout the beaker. - answer diffusion
Osmosis: if a semipermeable membrane is placed between the following solutions
which will decrease in volume?
A: 1.4% (m/v) starch
B: 7.62% (m/v) starch - answer Solution A
Osmosis: Which solution will increase in volume?
C: 9% (m/v) NaCl
D: 12.4% (m/v) NaCl - answer Solution D
exerts the same osmotic pressure as the cellular fluids/ behaves as if it had the same
solute concentration as the cell - answer Isotonic Solution
Behaves as if it had a higher solute concentration than the cell (cause cell to shrink) -
answer Hypertonic Solution
Behaves as if it had a lower solute concentration than the cell (cause cell to swell/burst)
- answer Hypotonic Solution
A red blood cell placed in a hypertonic solution will shrink in a process called - answer
Crenation
A red blood cell in a hypotonic solution will swell and potentially burst in a process
called - answer Hemolysis
what makes the tail (composed of fatty acid or isoprene) molecules hydrophobic? -
answer the density of carbon-hydrogen bonds, unable to interact with water
The phospholipid head consists of a three-carbon molecule called ___ linked to a
phosphate group. The phosphate group is then bonded to another small organic
molecule (ex: amino acid serine) - answer glycerol
(true/false) small nonpolar molecules and even small, uncharged polar molecules
(water, glycerol) can pass through the selectively permeable cell - answer true
(true/false) polar molecules, such as sugars and ions, which have charges, CANNOT
pass through the membrane. - answer true
movement from the area of higher concentration to areas of lower concentration, until
the concentrations are equalized throughout the beaker. - answer diffusion
