NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

BIO MOLECULES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which contains carbon, hydrogen, oxygen (CHO) in a 1:2:1 ratio and may have a ring-like structure?
A
Nucleic acid
B
Carbohydrates
C
Proteins
D
Lipids
Explanation: 

Detailed explanation-1: -Carbohydrates can be represented by the formula (CH2O)n, where n is the number of carbon atoms in the molecule. In other words, the ratio of carbon to hydrogen to oxygen is 1:2:1 in carbohydrate molecules.

Detailed explanation-2: -Monosaccharides have carbon, hydrogen, and oxygen in a 1:2:1 ratio. Monosaccharides or simple sugars include glucose, galactose, and fructose.

Detailed explanation-3: -Carbohydrates have the highest oxygen to carbon ratio of any of the important organic molecules. Common monosaccharides include: glucose, fructose, galactose, ribose, and deoxyribose. Notice that the name of each of these sugars ends with the suffix-ose. This suffix, -ose, means full, specifically, full of oxygen.

Detailed explanation-4: -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.

There is 1 question to complete.