What is the primary role of carnitine in muscle cells?
Exercise Physiology | Carnitine Biosynthesis & CPT Reactions

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Science, Biology, Chemistry
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To store energy
To synthesize proteins
To break down carbohydrates
To transport fatty acids into the mitochondrial matrix
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which amino acid is the starting point for carnitine biosynthesis?
Alanine
Serine
Glycine
Lysine
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of the enzyme trimethylglycine hydroxylase in carnitine biosynthesis?
It adds a methyl group to lysine
It hydroxylates trimethyl lysine
It converts lysine to glycine
It removes a carboxyl group
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is carnitine essential for fatty acid metabolism?
It breaks down fatty acids in the cytoplasm
It transports fatty acids into the mitochondrial matrix
It converts fatty acids into glucose
It stores fatty acids in the liver
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if there is a deficiency of carnitine in the body?
Improved muscle growth
Reduced fat metabolism
Increased protein synthesis
Enhanced carbohydrate metabolism
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the marketed benefit of carnitine supplements?
Improved muscle strength
Enhanced weight loss
Increased appetite
Better sleep quality
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does acetylcarnitine differ from L-carnitine?
It can cross the blood-brain barrier
It is not involved in fat metabolism
It is used for protein synthesis
It is a form of vitamin C
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