NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the ratio of hydrogen to oxygen in carbohydrates?
A
1:1
B
2:1
C
3:1
D
4:1
Explanation: 

Detailed explanation-1: -The three elements namely carbon, hydrogen, and oxygen present in carbohydrates are in the ratio of 1:2:1 respectively, this is why they are called carbohydrates. In lipids, the components are the same but the ratio is less for oxygen, so it is 1:2: less than one for C:H:O.

Detailed explanation-2: -The ratio of hydrogen atoms to oxygen atoms used to make water molecules is always 2:1, no matter how many water molecules are being made.

Detailed explanation-3: -The ratio of carbon, hydrogen, and oxygen in most carbohydrates is 1:2:1. This means for every one carbon atom there are two hydrogen atoms and one oxygen atom. This forms the structure of even the most complex carbohydrates such as starch and glycogen.

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