
Energy & Enzymes!
Interactive Video
•
Biology
•
12th Grade
•
Practice Problem
•
Hard
Vanessa Dreessen
FREE Resource
7 questions
Show all answers
1.
CATEGORIZE QUESTION
3 mins • 1 pt
Do you remember your Functional Groups?
Groups:
(a) Aldehyde
,
(b) Amino
,
(c) Keto
,
(d) Carboxyl
2.
CATEGORIZE QUESTION
3 mins • 1 pt
Match each to its proper category
Groups:
(a) Metabolism
,
(b) Anabolism
,
(c) Catabolism
managing material & energy resources of the cell
energy (E) released
degradative
energy (E) used
aerobic cellular respiration
totality of an organism’s chemical processes
photosynthesis
building
3.
CATEGORIZE QUESTION
3 mins • 1 pt
Match each to its Energy form
Groups:
(a) Potential Energy
,
(b) Kinetic Energy
stored
motion
4.
CATEGORIZE QUESTION
3 mins • 1 pt
Laws of Thermodynamics
Groups:
(a) 1st Law
,
(b) 2nd Law
the principle of conservation of energy
energy transformations do not create or eliminate energy
energy cannot be created or destroyed
work done on a system results in a change in energy
the total energy of an isolated system remains constant
energy can change forms but the total amount remains the same
the first law of thermodynamics
in a closed system, energy is conserved
5.
CATEGORIZE QUESTION
3 mins • 1 pt
Match each portion of the Gibbs Free Energy equation to its descriptions
ΔG = ΔH - TΔS
Groups:
(a) ΔG
,
(b) ΔH
,
(c) ΔS
,
(d) T
portion of system’s E that can perform work (at a constant T)
Positive value indicates a nonspontaneous reaction
Heat content of a system
Positive ΔS indicates an increase in disorder
Third law of thermodynamics states that entropy approaches zero as temperature approaches absolute zero
Used to predict equilibrium position
Negative value indicates a spontaneous reaction
Enthalpy
Gibbs free energy change during a reaction
Entropy increases in spontaneous processes
C + 273
H(products) - H(reactants)
Kelvin
Measure of disorder or randomness in a system
Measured at constant pressure
Entropy
Answer explanation
6.
CATEGORIZE QUESTION
3 mins • 1 pt
Match the descriptions/images to their reaction type
Groups:
(a) Endergonic
,
(b) Exergonic
energy released
catabolic
energy output
potential energy decreases
cellular respiration
building complex molecules
photosynthesis
energy absorbed/stored
anabolic
breaking down complex molecules
non-spontaneous reactions
spontaneous reactions
potential energy increases
energy input required
7.
OPEN ENDED QUESTION
3 mins • Ungraded
Summarize what you now know about metabolic pathways, energy, entropy, and enzymes.
How are all of these concepts connected?
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