FOOD CHEMISTRY
CARBOHYDRATES PROTEINS AND LIPIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The living cell is composed of a wide variety of chemical molecules. More than 90% of these molecules are ____
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Water molecules
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The respiratory gases, oxygen and carbon dioxide
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Relative small organic molecules such as amino acids and glucose
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Large organic macromolecules such as carbohydrates and protein
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Explanation:
Detailed explanation-1: -Living organisms, however, are made of only a small selection of these elements, four of which-carbon (C), hydrogen (H), nitrogen (N), and oxygen (O)-make up 96.5% of an organism’s weight.
Detailed explanation-2: -Proteins are body building molecules and provide the structural framework for cells. They are biopolymers of amino acids. They are the largest physical and chemical components of a cell. No other biomolecule possesses such immense structural and physiological diversity as proteins.
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