Lecithin is a phospholipid composed of choline and inositol. It is found in all living cells as a major component of cell membrane.
NEET UG 2011 — Botany Biomolecules
Which one of the following structural formulae of two organic compounds is correctly identified along with its related function? 

Held on 30 Apr 2011 · Verified 9 Jul 2026.
A - Triglycerid - source of energy e-major
B - Uracil - a component of DNA
A - Lecithin - a component of cell membrane
B - Adenine - a nucleotide that makes up nucleic acids
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Which of the following graphs depicts the effect of substrate concentration on velocity of enzyme catalysed reaction?
Which of the following are not fatty acids? A. Glutamic acid B. Arachidonic acid C. Palmitic acid D. Lecithin E. Aspartic acid Choose the correct answer from the options given below :
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Ligases is a class of enzymes responsible for catalysing the linking together of two compounds. Which of the following bonds is not catalysed by it?
Regarding catalytic cycle of an enzyme action, select the correct sequential steps : A. Substrate enzyme complex formation. B. Free enzyme ready to bind with another substrate. C. Release of products. D. Chemical bonds of the substrate broken. E. Substrate binding to active site. Choose the correct answer from the options given below :
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