The number of ketotetroses with respect to constitution and configurat – InterviewSolution

InterviewSolution

1.	The number of ketotetroses with respect to constitution and configuration are respectively.A. 2 and 2B. 3 and 6C. 1 and 2D. 2 and 4
Answer» Correct Answer - C Ketotetrose has the following structure: `HOCH_(2)COC HOHCH_(2) OH` It has just one asymmetric `C` atom reuslting into a pair of enantiomers (two optically active isomer): `D-` and `L-` erythrulose.

Discussion

No Comment Found

Related InterviewSolutions

The total number of basic groups in the following form of lysine is : .
The total number of basic groups in the following form of lysine is
Dihydroxyacetone-3 phosphate and glyceraldehyde-3-phosphate are interconvertible. The enzyme responsible for this interconversion belongs to the cateogry ofA. isomerasesB. ligasesC. lyasesD. hydrolases.
Which of the following enzyme is a hydrolase ?A. AmylaseB. Histidine decarboxylaseC. Pyruvate carboxylaseD. Both (2) & (3)
Which one is diaminodiacrboxlic amino acidA. CystineB. LysineC. CysteineD. Aspartic acid
Lipids that insulate the nerve fibre areA. LecithinB. CholesterolC. SuberinD. Glycolipids
Match column I with column II and select the correct option from the given codes. `{:(" Column I",," Column II"),("(Category)",,"(Secondary metaboliteis)"),(A."""Pigments ",,(i)"Concanavalin A"),(B."" "Terpenoides",,(ii)"Monoterpenes, diterpenes"),(C."" "Alkalods",,(iii)"Morphine, codeine"),(D.""" Lectins",,(iv) "Carotenoids, anthocyanins"):}`A. `A-(iv), B-(ii), C-(iii), D-(i)`B. `A-(iv), B-(iii), C-(ii), D-(i)`C. `A-(iv), B-(i), C-(iii), D-(ii)`D. `A-(i), B-(iii), C-(ii), D-(iv)`
A secondary metabolite that acts as a toxin isA. CarotenoidsB. CurcuminC. AbrinD. Monoterpenes
The most abundant molecule in cell isA. WaterB. CarbohydratesC. LipidD. Protein
Lecithin is a ?A. carbohydratesB. hormonesC. vitaminsD. phospholipids