What is the primary role of enzymes in biochemical reactions?

Mastering Cellular Energetics for AP Biology

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Biology
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9th - 12th Grade
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Hard

Lucas Foster
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To speed up chemical reactions by lowering activation energy
To provide structural support to cells
To transport substances across the cell membrane
To store genetic information
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of reaction involves the absorption of energy?
Exergonic reaction
Endergonic reaction
Both exergonic and endergonic reactions
Neither exergonic nor endergonic reactions
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to an enzyme after it catalyzes a reaction?
It is consumed by the reaction
It is broken down into amino acids
It permanently binds to the substrate
It remains unchanged and can catalyze another reaction
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During glycolysis, what is the net gain of ATP?
Four ATP
Two ATP
Six ATP
Eight ATP
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final electron acceptor in the electron transport chain?
ATP
Carbon dioxide
Oxygen
Glucose
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary role of NADH in cellular respiration?
It directly synthesizes ATP molecules.
It functions as a primary enzyme in the Krebs cycle.
It breaks down glucose into pyruvate.
It acts as a primary electron donor in the electron transport chain.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component is NOT directly involved in the light reactions of photosynthesis?
Photosystem II
ATP synthase
Chlorophyll
Rubisco
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