Which macromolecule includes simple sugars and starches?

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Study for the Grade 9 Environmental Chemistry Test. Use a blend of multiple-choice questions and detailed explanations. Master key concepts and prepare effectively!

Multiple Choice

Which macromolecule includes simple sugars and starches?

Explanation:
Carbohydrates are the macromolecules that include simple sugars and starches. Simple sugars, like glucose, are the building blocks of carbohydrates (monosaccharides), while starch is a polysaccharide composed of many glucose units used by plants to store energy. Carbohydrates provide quick, accessible energy because their bonds are relatively easy to break. Other macromolecules serve different roles: lipids are mainly for long-term energy storage and membranes, nucleic acids store genetic information, and proteins perform a wide range of functions from enzymes to structural components. So, the group that covers both simple sugars and starches is carbohydrates.

Carbohydrates are the macromolecules that include simple sugars and starches. Simple sugars, like glucose, are the building blocks of carbohydrates (monosaccharides), while starch is a polysaccharide composed of many glucose units used by plants to store energy. Carbohydrates provide quick, accessible energy because their bonds are relatively easy to break. Other macromolecules serve different roles: lipids are mainly for long-term energy storage and membranes, nucleic acids store genetic information, and proteins perform a wide range of functions from enzymes to structural components. So, the group that covers both simple sugars and starches is carbohydrates.

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