BIOL 1111 LAB Exam 1 Questions With Complete
Solutions
-excessive heat
-changes in pH Correct Answers what causes a protein to
become denatured
-if solution has higher solute concentration, then molecules must
have low water concentration
-if solution has low solute concentration, then molecules must
have high water concentration Correct Answers How does
solute concentration affect the movement of water across the
membrane?
-plant cells have more structure because they have cell walls
-plant cells have chloroplasts Correct Answers compare and
contrast animal and plant cells
-temperature. Molecules move faster at higher temperatures.
-molecule size. larger molecules move slower than smaller
molecules Correct Answers What can affect the rate of
diffusion?
-The amalyse did not work if starch was still present in the test
tube. If the amalyse did work, then the starch would be turned
into maltose, and therefore starch would not have been detected
with the iodine Correct Answers How does the presence of
starch relate to amalyse function?
400x Correct Answers the total magnification of a compound
microscope
, active site Correct Answers location on an enzyme where the
reaction occurs
amino acids Correct Answers make up protein
bar graphs Correct Answers type of graph used when the
independent variable is categorical (values are categories)
base Correct Answers serves as a housing for the light source
Benedict's reducing sugar test Correct Answers test used to test
for sugar
binocular image Correct Answers two ocular lenses produce a
___.
Biuret's protein test Correct Answers test used to test for
proteins
brown paper lipid test Correct Answers test used to test for
lipids
catalyst Correct Answers speeds of the rate of chemical
reactions
cell becomes crenated (shrunken) Correct Answers What
happens to a cell when it is placed in a hypertonic solution?
cell becomes swollen Correct Answers What happens to a cell
when it is placed in a hypotonic solution?
Solutions
-excessive heat
-changes in pH Correct Answers what causes a protein to
become denatured
-if solution has higher solute concentration, then molecules must
have low water concentration
-if solution has low solute concentration, then molecules must
have high water concentration Correct Answers How does
solute concentration affect the movement of water across the
membrane?
-plant cells have more structure because they have cell walls
-plant cells have chloroplasts Correct Answers compare and
contrast animal and plant cells
-temperature. Molecules move faster at higher temperatures.
-molecule size. larger molecules move slower than smaller
molecules Correct Answers What can affect the rate of
diffusion?
-The amalyse did not work if starch was still present in the test
tube. If the amalyse did work, then the starch would be turned
into maltose, and therefore starch would not have been detected
with the iodine Correct Answers How does the presence of
starch relate to amalyse function?
400x Correct Answers the total magnification of a compound
microscope
, active site Correct Answers location on an enzyme where the
reaction occurs
amino acids Correct Answers make up protein
bar graphs Correct Answers type of graph used when the
independent variable is categorical (values are categories)
base Correct Answers serves as a housing for the light source
Benedict's reducing sugar test Correct Answers test used to test
for sugar
binocular image Correct Answers two ocular lenses produce a
___.
Biuret's protein test Correct Answers test used to test for
proteins
brown paper lipid test Correct Answers test used to test for
lipids
catalyst Correct Answers speeds of the rate of chemical
reactions
cell becomes crenated (shrunken) Correct Answers What
happens to a cell when it is placed in a hypertonic solution?
cell becomes swollen Correct Answers What happens to a cell
when it is placed in a hypotonic solution?
