NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

BIO MOLECULES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Carbohydrates have C, H, O. What is the ratio of elements?
A
2:1:2
B
1:3:1
C
1:2:1
D
3:1:3
Explanation: 

Detailed explanation-1: -Carbohydrates are a class of chemical compounds composed of carbon, hydrogen, and oxygen in 1:2:1 ratio, respectively.

Detailed explanation-2: -For simple carbohydrates, the ratio of carbon-to-hydrogen-to-oxygen in the molecule is 1:2:1. This formula also explains the origin of the term “carbohydrate”: the components are carbon ( “ carbo”) and the components of water ( “ hydrate”).

Detailed explanation-3: -Carbohydrates are made of carbon (C), hydrogen (H), and oxygen (O), or CHO, in an approximate ratio of 1:2:1.

Detailed explanation-4: -Carbohydrates are hydrocarbons which are polyhydroxy aldehydes and ketones having C: H: O ratio as 1:2:1, as in glucose which has molecular formula C6H12O6. All carbohydrates, however, do not show this ratio, for example, rhamnose is a crystalline sugar, C6H12O5.

Detailed explanation-5: -Monosaccharides have carbon, hydrogen, and oxygen in a 1:2:1 ratio. Monosaccharides or simple sugars include glucose, galactose, and fructose.

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