BIOLOGY
CARBOHYDRATES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1:2:1
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2:1:2
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1:2:3
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1:1:1
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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: -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-3: -Monosaccharides have carbon, hydrogen, and oxygen in a 1:2:1 ratio. Monosaccharides or simple sugars include glucose, galactose, and fructose. Although their chemical formulas are the same, they have different structural formulas.
Detailed explanation-4: -Carbohydrates (carbo-= “carbon”; hydrate = “water”) contain the elements carbon, hydrogen, and oxygen, and only those elements with a few exceptions. The ratio of carbon to hydrogen to oxygen in carbohydrate molecules is 1:2:1.
Detailed explanation-5: -Carbohydrates usually have a ratio of two hydrogen for one oxygen (just like water) along with the same number of oxygen atoms and carbon atoms. Many molecules that give energy to living organisms get that energy from some sort of carbohydrate like sugars, starch, or cellulose.