A. Non-essential amino acid
B. Involved in serotonin synthesis
C. Involved in niacin synthesis
D. Involved in melatonin in synthesis
✅ The correct answer is option A. Non-essential amino acid.
Biochemistry
Which of the following is correct about breakdown of hemoglobin (Hb)_____________?
A. Hb→Heme→bilirubin→Urobilinogen
B. Heme→Hb→Biliverdin→Urobilinogen
C. Hb→Heme→Bilverdin→Uro bilinogen
D. Hb→Heme→bilirubin→Urobilinogen→Biliverdin
✅ The correct answer is option C. Hb→Heme→Bilverdin→Uro bilinogen.
Daily requirement of iron in man is_____________?
A. 1gm
B. 10 microgram
C. 10 mg
D. 20 mg
✅ The correct answer is option C. 10 mg.
The fuel value of fat is____________?
A. 4
B. 7
C. 9
D. 5
✅ The correct answer is option C. 9.
Synthesis of protein occurs on_____________?
A. Mitochondria
B. Poly ribosomes
C. Nucleus
D. Golgi bodies
✅ The correct answer is option B. Poly ribosomes.
Which is not seen in HMG CoA pathway ?
A. Pyruvate
B. Cholesterol
C. Mevalonate
D. Acetyl CoA
✅ The correct answer is option A. Pyruvate.
One of the earliest symptoms of Vit. A deficiency is________________?
A. Nyctalopia
B. Xerophthalmia
C. Bitot’s spot
D. Keratomalacia
✅ The correct answer is option A. Nyctalopia.
Unwinding of DNA is done by____________?
A. DNAse
B. Topo isomerase
C. Ligase
D. Reverse transcriptase
✅ The correct answer is option B. Topo isomerase.
The amino acid from which niacin synthesized is_______________?
A. Tyrosine
B. Tryptophan
C. Threonine
D. Histidine
✅ The correct answer is option B. Tryptophan.
The major lipids that make up the cell membrane are_______________?
A. Triglycerides
B. Phospholipids
C. Sphingomyelins
D. Fatty acids
✅ The correct answer is option B. Phospholipids.