OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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carbohydrate
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lipid
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nucleic acid
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protein
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Detailed explanation-1: -There are four classes of macromolecules (polysaccharides or carbohydrates, triglycerides or lipids, polypeptides or proteins, and nucleic acids such as DNA & RNA). Carbohydrates and lipids are made of only carbon, hydrogen, and oxygen (CHO).
Detailed explanation-2: -Answer and Explanation: Water is not a macromolecule because only contains three atoms: two hydrogen atoms and one oxygen atom.
Detailed explanation-3: -Carbohydrates: Carbohydrates are biological molecules made up of carbon, hydrogen, and oxygen, in a ratio of approximately one carbon atom to one water molecule. Carbohydrates get their name from this composition, and it is made up of carbon plus water. Some carbohydrates are in the form of Sugar.
Detailed explanation-4: -In fact, carbon atoms make up the backbone of many important molecules in your body, including proteins, DNA, RNA, sugars, and fats. These complex biological molecules are often called macromolecules; they’re also classified as organic molecules, which simply means that they contain carbon atoms.