GENERAL KNOWLEDGE

GK

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which statement is NOT true of organic molecules?
A
DNA is the genetic code in chromosomes
B
hormones may be steroids or proteins
C
phospholipids are part of cell membranes
D
oliogosaccharides are energy storage molecules
Explanation: 

Detailed explanation-1: -Which of the following would NOT be a molecule used for energy storage ? Chitin.

Detailed explanation-2: -Carbohydrates. Carbohydrates are the main energy-storage molecules in most organisms. They are also important structural components for many organisms. The building blocks of carbohydrates are small molecules called sugars, composed of carbon, hydrogen and oxygen.

Detailed explanation-3: -Carbohydrates are organic compounds consisting of carbon, hydrogen, and oxygen, usually in the ratio of 1:2:1. They are one of the major classes of biomolecules. They are an important source of energy.

Detailed explanation-4: -Illustrated Glossary of Organic Chemistry-Oligosaccharide. Oligosaccharide: A molecule containing between two and ten monosaccharides. When the oligosaccharide contains two monosaccharides it is a disaccharide. When the oligosaccharide contains more than ten monosaccharides it is a polysaccharide.

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