BIOL 1101 Lab Practical ECU Questions With Complete
Solutions
Absorbance Correct Answers amount of light of a given
wavelength that passes through a solution.
Active site is a particular part of an enzyme molecule where the
_______ fits. Correct Answers substrate
Beaker Correct Answers used to measure volumes of liquid (not
accurate)
Beers Law Correct Answers the concentration of a solution is
directly proportional to its absorbance. The absorbance increases
with concentration
Claim Correct Answers data based answer to the guiding
question
Competitive inhibitors: Correct Answers closely resemble the
substrate and interact with the enzyme at the active site
Constant Correct Answers the value that does not change
Control Correct Answers the standard by which the test results
can be compared
denature Correct Answers A change in the shape of a protein
(such as an enzyme) that can be caused by changes in
temperature or pH (among other things).
, Dependent variable Correct Answers The outcome factor; the
variable that may change in response to manipulations of the
independent variable.
Environmental factors that affect enzyme reactions: Correct
Answers pH level, temperature, and salt
Enzyme Correct Answers A type of protein that speeds up a
chemical reaction in a living thing, the catalyst
Enzyme Inhibitor Correct Answers a molecule that binds to an
enzyme and decreases its activity
Enzymes are molecular Correct Answers catalysts
Enzymes function by _______ the energy to activate a chemical
reaction. Correct Answers lowering
Graduated Cylinder Correct Answers measure volumes of
liquid (more accurate than beaker)
Hypothesis Correct Answers a prediction of the outcome that
answering the guided question, that can be tested
In an enzymatic reaction, the _______ is changed by the
enzyme. Correct Answers substrate
In the apple browning experiment the constant is Correct
Answers the amount of enzyme
Solutions
Absorbance Correct Answers amount of light of a given
wavelength that passes through a solution.
Active site is a particular part of an enzyme molecule where the
_______ fits. Correct Answers substrate
Beaker Correct Answers used to measure volumes of liquid (not
accurate)
Beers Law Correct Answers the concentration of a solution is
directly proportional to its absorbance. The absorbance increases
with concentration
Claim Correct Answers data based answer to the guiding
question
Competitive inhibitors: Correct Answers closely resemble the
substrate and interact with the enzyme at the active site
Constant Correct Answers the value that does not change
Control Correct Answers the standard by which the test results
can be compared
denature Correct Answers A change in the shape of a protein
(such as an enzyme) that can be caused by changes in
temperature or pH (among other things).
, Dependent variable Correct Answers The outcome factor; the
variable that may change in response to manipulations of the
independent variable.
Environmental factors that affect enzyme reactions: Correct
Answers pH level, temperature, and salt
Enzyme Correct Answers A type of protein that speeds up a
chemical reaction in a living thing, the catalyst
Enzyme Inhibitor Correct Answers a molecule that binds to an
enzyme and decreases its activity
Enzymes are molecular Correct Answers catalysts
Enzymes function by _______ the energy to activate a chemical
reaction. Correct Answers lowering
Graduated Cylinder Correct Answers measure volumes of
liquid (more accurate than beaker)
Hypothesis Correct Answers a prediction of the outcome that
answering the guided question, that can be tested
In an enzymatic reaction, the _______ is changed by the
enzyme. Correct Answers substrate
In the apple browning experiment the constant is Correct
Answers the amount of enzyme
