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
photosynthesis
building
energy (E) released
managing material & energy resources of the cell
totality of an organism’s chemical processes
degradative
energy (E) used
aerobic cellular respiration
3.
CATEGORIZE QUESTION
3 mins • 1 pt
Match each to its Energy form
Groups:
(a) Potential Energy
,
(b) Kinetic Energy
motion
stored
4.
CATEGORIZE QUESTION
3 mins • 1 pt
Laws of Thermodynamics
Groups:
(a) 1st Law
,
(b) 2nd Law
energy can change forms but the total amount remains the same
the total energy of an isolated system remains constant
energy transformations do not create or eliminate energy
energy cannot be created or destroyed
in a closed system, energy is conserved
work done on a system results in a change in energy
the principle of conservation of energy
the first law of thermodynamics
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)
Entropy
Measured at constant pressure
Measure of disorder or randomness in a system
Gibbs free energy change during a reaction
H(products) - H(reactants)
Third law of thermodynamics states that entropy approaches zero as temperature approaches absolute zero
Enthalpy
Positive value indicates a nonspontaneous reaction
Positive ΔS indicates an increase in disorder
Negative value indicates a spontaneous reaction
Heat content of a system
C + 273
Kelvin
Used to predict equilibrium position
Entropy increases in spontaneous processes
Answer explanation
6.
CATEGORIZE QUESTION
3 mins • 1 pt
Match the descriptions/images to their reaction type
Groups:
(a) Endergonic
,
(b) Exergonic
breaking down complex molecules
anabolic
energy released
energy output
energy input required
energy absorbed/stored
catabolic
potential energy decreases
non-spontaneous reactions
potential energy increases
building complex molecules
photosynthesis
spontaneous reactions
cellular respiration
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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