BIOLOGY
NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They contain carbon, hydrogen, and oxygen only
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They contain a 2:1 ratio of hydrogen to oxygen
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They have a greater than 2:1 ratio of hydrogen to oxygen
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They have less than a 2:1 ratio of hydrogen to oxygen
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Detailed explanation-1: -The answer is e) All statements about lipids are correct. They are all hydrophobic which means that they are soluble in organic solvents and insoluble in water.
Detailed explanation-2: -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-3: -Lipids are organic compounds that contain the same elements as carbohydrates: carbon, hydrogen, and oxygen. However, the hydrogen-to-oxygen ratio is always greater than 2:1.
Detailed explanation-4: -Lipid of any type contains the same structural elements as carbohydrates (Carbon, Hydrogen, and Oxygen). However, in lipids, the ratio of hydrogen to oxygen is considerably greater. For example, the common lipid, stearin, has as many as 18 hydrogen atoms for every oxygen (see figure below).