NURSING EXAM QUESTIONS
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A scientist analyzing an unknown substance has determined that it consists only of carbon, hydrogen and oxygen. During experimentation, she determines that the substance is soluble, or dissolves, in OIL but not in water. Which of the following macromolecules is the unknown substance most likely to be?
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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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Explanation:
Detailed explanation-1: -Final answer: Sucrose is not a macromolecule.
Detailed explanation-2: -Carbohydrates are energy-rich. Many, such as glycogen, provide energy-storage functions. Other carbohydrates, such as cellulose-a component of plant cell walls-serve primarily structural roles in a cell.
Detailed explanation-3: -Carbohydrates are essential macromolecules that are classified into three subtypes: monosaccharides, disaccharides, and polysaccharides. Carbohydrates are a major class of biological macromolecules that are an essential part of our diet and provide energy to the body.
There is 1 question to complete.