NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which substance is an inorganic molecule?
A
water
B
starch
C
DNA
D
glucose
Explanation: 

Detailed explanation-1: -Water H 2 O : Water is a compound composed of Hydrogen and Oxygen atoms connected by covalent bonds. Inorganic substances won’t contain a Carbon atom, whereas organic substances contain several. Thus, water is an inorganic compound because it does not contain carbon and it was not formed by a living organism.

Detailed explanation-2: -Inorganic substances are a group of chemicals that contain no carbon. Examples include ammonia, hydrogen sulfide, all metals, and most elements (such as calcium).

Detailed explanation-3: -H2O means each molecule of water contains two atoms of hydrogen (H) joined to one atom of oxygen (O). In order for something to be organic-as in alive-it needs carbon. So water, by definition is inorganic.

Detailed explanation-4: -‍What are Inorganics? Inorganics can include a combination of metals, salts, compounds, particles, and mineral complexes which do not contain carbon; carbon compounds are organics. Inorganic contaminants include natural or man-made elements or compounds that can contaminate water or be concentrated in the water cycle.

Detailed explanation-5: -Water is an inorganic compound, a solvent . It does not possess any carbon in its molecular structure, hence not organic.

There is 1 question to complete.