Nitric Oxide Synthase: Physiology, Biochemistry, and Mechanism

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Science, Biology, Chemistry
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University
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of nitric oxide synthase?
To convert glucose to energy
To break down fatty acids
To synthesize proteins
To produce nitric oxide from L-arginine
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does tetrahydrobiopterin affect nitric oxide synthase?
It acts as a substrate for the enzyme
It stabilizes the enzyme and affects reactivity
It directly participates in oxygen activation
It inhibits the enzyme's activity
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the heme group in nitric oxide synthase?
It stores energy
It activates molecular oxygen
It transports electrons
It binds to carbon dioxide
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What distinguishes nitric oxide synthase from cytochrome P-450 in terms of electron transfer?
It requires an external electron source
It uses ATP instead of NADPH
It has a built-in reductase domain
It does not involve electron transfer
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of nitric oxide synthase is involved in immune response?
Mitochondrial nitric oxide synthase
Neuronal nitric oxide synthase
Endothelial nitric oxide synthase
Inducible nitric oxide synthase
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does nitric oxide play in blood vessels?
It causes blood vessels to rupture
It constricts blood vessels
It dilates blood vessels
It has no effect on blood vessels
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of guanylate cyclase in nitric oxide signaling?
It inhibits nitric oxide production
It converts GTP to cyclic GMP
It synthesizes nitric oxide
It breaks down nitric oxide
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