Biomolecules questions
1272 published questions with worked solutions.
- Synthesis of each molecule of glucose in photosynthesis involves -
- Identify the correct statements. A. Arginine and Tryptophan are essential amino acids. B. Histidine does not contain heterocyclic...
- Given below are two statements: Statement I: Sucrose is dextrorotatory. However sucrose upon hydrolysis gives a solution having...
- Match List-I with List-II. List-I (Reaction of glucose with): (A) Hydroxylamine (B) Br_2 water (C) Excess acetic anhydride (D)...
- Both human DNA and RNA are chiral molecules. The chirality in DNA and RNA arises due to the presence of
- Which of the following acids is a vitamin ?
- The - Helix and - Pleated sheet structures of protein are associated with its:
- The carbohydrates "Ribose" present in DNA, is A. A pentose sugar B. present in pyranose from C. in "D" configuration D. a...
- Statement I : D-glucose pentaacetate reacts with 2, 4-dinitrophenylhydrazine. Statement II : Starch, on heating with concentrated...
- Match List-I with List-II List-I (Saccharides): (A) Sucrose (B) Maltose (C) Lactose (D) Amylopectin List-II (Glycosidic-linkages...
- Identify correct conversion during acidic hydrolysis from the following : (A) starch gives galactose. (B) cane sugar gives equal...
- Match List – I with List – II. List – I (Carbohydrate): (A) Amylose (B) Cellulose (C) Glycogen (D) Amylopectin List – II (Linkage...
- Identify the essential amino acids from below : (A) Valine (B) Proline (C) Lysine (D) Threonine (E) Tyrosine Choose the correct...
- A tetrapeptide, "x" on complete hydrolysis produce glycine (Gly), alanine (Ala), valine (Val), leucine (Leu) in equimolar...
- Fat soluble vitamins are: (A) Vitamin B1 (B) Vitamin C (C) Vitamin E (D) Vitamin B12 (E) Vitamin K Choose the correct answer from...
- Identify the pair of reactants that upon reaction, with elimination of HCl will give rise to the dipeptide Gly-Ala.
- CH(CH_3)_2 attached to H_2N-CH-COOH, at pH = 2 gives A, at pH = 10 gives B. Choose the correct option for structures of A and B,...
- Given below are two statements Statement I: On hydrolysis, oligo peptides give rise to fewer number of α-amino acids while...
- Thiol group is present in :
- Glucose on prolonged heating with HI gives :
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