AP Bio Enzyme Chapter 6 Quiz
Which of the following comparisons is NOT correct?:
-metabolism: sum of all chemical reactions occurring inside a living cell
-ATP: energy currency in cells
- First Law of Thermodynamics: energy can neither be created nor destroyed
- energy: constantly cycled back and forth through living things, 100% efficiently
ANSWERS energy: constantly cycled back and forth through living things, 100%
efficiently
Identify all the things that are generally expected to increase the rate of an enzymatic
reaction? ANSWERS -add more enzyme
-add more substrate
- denature the enzyme
- raise the temperature to 120degreeC
- freeze the enzyme
Four AP Biology students working in a team were asked to design a lab to test the effect
of an environmental factor that affects the enzyme activity of catalase on the rate of
hydrogen peroxide decomposition. Each student came up with a different idea. Upon
collaboration, the one idea that was eliminated as a valid possibility was...
-adding different pH buffers from 1 through 12 to the hydrogen peroxide solution
- changing the temperature of the hydrogen peroxide from 10degreesC to 65degreesC
at 5degreeC intervals
-adding different concentrations of NaCl (salt) from 0M to 1.0M at 0.2M intervals to the
hydrogen peroxide solution
-adding different enzymes in addition to catalase to the hydrogen peroxide solution
including sucrase and lipase ANSWERS adding different enzymes in addition to
catalase to the hydrogen peroxide solution including sucrase and lipase
Raising the temperature slightly will ____ the rate of reaction ANSWERS increase
Living systems do not violate the second law of thermodynamics, which states that
_____ entropy (and so have negative changes in free energy) with those that _____
entropy (and so have positive changes in free energy) ANSWERS increase,
decrease
The____ is a place where the substrates fit onto the enzyme in such a way that they are
oriented to react ANSWERS active site
Which of the following comparisons is NOT correct?:
-metabolism: sum of all chemical reactions occurring inside a living cell
-ATP: energy currency in cells
- First Law of Thermodynamics: energy can neither be created nor destroyed
- energy: constantly cycled back and forth through living things, 100% efficiently
ANSWERS energy: constantly cycled back and forth through living things, 100%
efficiently
Identify all the things that are generally expected to increase the rate of an enzymatic
reaction? ANSWERS -add more enzyme
-add more substrate
- denature the enzyme
- raise the temperature to 120degreeC
- freeze the enzyme
Four AP Biology students working in a team were asked to design a lab to test the effect
of an environmental factor that affects the enzyme activity of catalase on the rate of
hydrogen peroxide decomposition. Each student came up with a different idea. Upon
collaboration, the one idea that was eliminated as a valid possibility was...
-adding different pH buffers from 1 through 12 to the hydrogen peroxide solution
- changing the temperature of the hydrogen peroxide from 10degreesC to 65degreesC
at 5degreeC intervals
-adding different concentrations of NaCl (salt) from 0M to 1.0M at 0.2M intervals to the
hydrogen peroxide solution
-adding different enzymes in addition to catalase to the hydrogen peroxide solution
including sucrase and lipase ANSWERS adding different enzymes in addition to
catalase to the hydrogen peroxide solution including sucrase and lipase
Raising the temperature slightly will ____ the rate of reaction ANSWERS increase
Living systems do not violate the second law of thermodynamics, which states that
_____ entropy (and so have negative changes in free energy) with those that _____
entropy (and so have positive changes in free energy) ANSWERS increase,
decrease
The____ is a place where the substrates fit onto the enzyme in such a way that they are
oriented to react ANSWERS active site
