Energy Matters
Enzyme Time
Life on the
OIL RIG
OIL RIG
Photosynthesis 101
There is a Light-Dependent Reaction That Never Goes Out
100
This is the capacity to do work and bring about some sort of change.
What is energy?
100
This is a protein that serves as a biological catalyst.
What is an enzyme?
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100
In this reaction, the yellow line represents this.
What is oxidation?
**Molecule A is losing electrons**
100
Also known as producers or self-feeders, these are organisms that produce organic compounds from inorganic materials.
What are autotrophs?
100
These are the 4 reactants of the light-dependent phase of photosynthesis.
What are sunlight, water, NADP+, and ADP?
200
The energy stored in glucose is an example of this.
What is potential energy?
200
Enzymes have this affect on the activation energy of a reaction.
What is reduces activation energy?
**∆G doesn't change!!**
200
In this reaction, the blue line represents this.
What is reduction?
**Molecule B is gaining electrons**
200
Photosynthesis is considered this type of process.
(Hint: with respect to ∆G)
What is endergonic?
200
These are the 4 products of the light-dependent reaction of photosynthesis.
What are heat, oxygen, NADPH, and ATP?
300
The following graph depicts this type of reaction.
What is endergonic?
300
These are the reactants of catalyzed reactions.
What are substrates?
300
This is what is occurring to NAD+ in the following reaction.
What is reduction?
Positive --> negative = gaining electrons
RIG --> Reduction Is Gaining
300
These are the two major pathways that comprise photosynthesis.
What are light-dependent reactions and the Calvin Cycle?
300
This is the green protein on the left, also known as P680.
What is Photosystem II?
**Bonus: how do these carrier proteins differ from those of cellular respiration?**
400
Exergonic reactions can be identified by this change in ∆G.
What is negative?
400
This type of inhibition occurs when a regulatory molecule binds to the enzyme's active site.
What is competitive inhibition?
400
In redox reactions, electrons may be gained or lost in these two ways.
What are covalent bonds and ionic bonds?
**example of electrons being moved from covalent bonds**
Ionic --> Fe3+ to Fe2+
400
This is the organic carbon product of photosynthesis, which includes hydrogen from water and carbon from CO2.
What is G3P?
400
During the light-dependent phase, H+ ions return to the stroma (along the proton gradient) via this transmembrane enzyme.
What is ATP synthase?
500
The high potential energy of ATP is a result of the four negative charges clustered in which groups?
What are phosphate groups?
500
This type of regulation occurs when the active site of an enzyme becomes available to the substrate when a regulatory molecule binds to a different site on the enzyme.
What is allosteric regulation?
500
This is the reduced form of the electron carrier used in the light-dependent reaction of photosynthesis.
What is NADPH?
500
This is the equation for photosynthesis.
What is
?
500
During the light-dependent reaction of photosynthesis, H+ ions accumulate in this structure.
What is the thylakoid lumen?
