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NEET MDS Quiz - Practice Test

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Biochemistry - 3 Questions

1
Biochemistry

The principal amino acid released from muscle during starvation is:
1) Glycine
2) Alanine
3) Lysine
4) Valine

📝 Explanation:

Alanine is transported to the liver via the glucose-alanine cycle for gluconeogenesis.

2
Biochemistry

Elevated LDL cholesterol with normal triglycerides and tendon xanthomas suggests:
1). Type IIb hyperlipoproteinemia
2). Type I hyperlipoproteinemia
3). Type IIa familial hypercholesterolemia
4). Type III hyperlipoproteinemia

📝 Explanation:

LDL receptor deficiency causes isolated elevation of LDL with tendon xanthomas.

3
Biochemistry

The primary function of ABCA1 protein is:
1). LDL uptake
2). Cholesterol efflux to HDL
3). Chylomicron synthesis
4). Triglyceride hydrolysis

📝 Explanation:

ABCA1 transfers cholesterol from peripheral cells to Apo A-I, initiating HDL formation.

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