Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2018ZoologyDigestion and AbsorptionActual

The vitamin nicotinamide can be synthesised in our body from

Options

  1. Atyrosine
  2. Btryptophan
  3. Cvaline
  4. Dphenylalanine.

Correct answer

B. tryptophan

Step-by-step solution

The amino acid tryptophan serves as a source material for the synthesis of nicotinamide which in turn forms two coenzymes, NAD and NADP with metabolic roles.

Practice Digestion and Absorption on Quantrex Academy →

More from Digestion and Absorption

Select the correct sequential steps regarding absorption of fatty acids and glycerol, in intestine. (A) Micelles are reformed into small protein coated fat globules called chylomic 2023Match List I with List II . List I (Cells) List II (Secretion) A. Peptic cells I. Mucus B. Goblet cells II. Bile juice C. Oxyntic cells III. Proenzyme pepsinogen D. Hepatic cells I 2023Once the undigested and unabsorbed substances enter the caecum, their backflow is prevented by- 2023Choose the incorrect enzymatic reaction : 2022Match List-I with List-II regarding the organs of Cockroach: Choose the correct answer from the options given below: 2022Role of enamel is to : 2022A unique vascular connection between the digestive tract and liver is called 2022Which of the following functions is not performed by secretions from salivary glands? 2022 Full Digestion and Absorption list All NEET PYQs