NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What makes a compound organic?
A
it must contain hydrogen atoms
B
its only found in living things
C
it must contain carbon atoms
D
it must contain water
Explanation: 

Detailed explanation-1: -Organic molecules must contain carbon atoms covalently bonded to hydrogen atoms (C-H bonds). They usually involve oxygen and can also contain nitrogen, sulfur, phosphorous, and others. Hydrocarbons, like alkanes, alkenes and alkynes are all organic molecules and so are alcohols, carboxylic acids and carbohydrates.

Detailed explanation-2: -Many organic compounds are formed from chains of covalently-linked carbon atoms with hydrogen atoms attached to the chain (a hydrocarbon backbone). This means that all organic compounds have in common the presence of carbon atoms and hydrogen atoms.

Detailed explanation-3: -Organic compound, any of a large class of chemical compounds in which one or more carbon atoms are covalently bound to atoms of other elements, most commonly hydrogen, oxygen or nitrogen. The only carbon-containing compounds not known as organic include carbides, carbonates and cyanide.

Detailed explanation-4: -The majority of organic compounds contain carbon, hydrogen, and occasionally other elements such as nitrogen, sulfur, oxygen, or phosphorus. Carbon is found in all living organisms, including bacteria. But, Carbon is the basic element of organic compounds.

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