Biochemistry Past Paper MCQs | Batch 48 First Online Test 1st Year | mosaicbro.com
Biochemistry Past Paper MCQs | Batch 48 First Online Test 1st Year
This is series of Past Paper MCQs series of Biochemistry.
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Review Answers:
29
Naturally accruing Fats are?
Correct Answer:B
Explanation:
Natural fats are predominantly L-type due to enzyme stereospecificity in biosynthesis. For example, glycerol-3-phosphate, a precursor for triglycerides, is always in the L-configuration in nature.
30
The structure of nuclear membrane facilitates?
Correct Answer:B
Explanation:
The nuclear envelope's pores regulate transport between the nucleus and cytoplasm, allowing selective passage of mRNA, ribosomes, and proteins while retaining DNA within the nucleus.
31
A pentose sugar reported to be present in heart cells?
Correct Answer:D
Explanation:
Xylulose, a ketopentose, is part of the pentose phosphate pathway and is notably abundant in heart tissue. It serves as a precursor for glycosaminoglycan synthesis and metabolic regulation.
32
The major cause of death in thalassemia major is?
Correct Answer:D
Explanation:
Iron overload from chronic transfusions is the leading cause of death in thalassemia major. Excess iron deposits in organs (heart, liver) cause cardiomyopathy, cirrhosis, and endocrine dysfunction.