OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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C H O
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C H O N
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C H O N P
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C H O N S
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Detailed explanation-1: -Lipids contain the same elements as carbohydrates: carbon, hydrogen and oxygen (C, H, and O). However, lipids are mainly made of hydrocarbon chains (or rings) and contain fewer polar hydroxyl groups (-OH). This makes most lipids nonpolar hydrophobic molecules (they do not dissolve well in water).
Detailed explanation-2: -Carbohydrates and lipids are made of only carbon, hydrogen, and oxygen (CHO). Proteins are made of carbon, hydrogen, oxygen, and nitrogen (CHON).
Detailed explanation-3: -Lipids are an essential component of the cell membrane. The structure is typically made of a glycerol backbone, 2 fatty acid tails (hydrophobic), and a phosphate group (hydrophilic).
Detailed explanation-4: -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-5: -Lipids are mainly composed of carbon and hydrogen atoms, and this hydrophobic ("water fearing") nature of lipids is driven by the bonds between these many carbons and hydrogens.