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When are carbohydrates good for us? What are "good" versus "bad"carbohydrates? When are they not good for us or our bodies? Whatchemistry is involved in their breakdown, usage, and storage?

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Bunny Greenfelder
Bunny GreenfelderLv2
29 Sep 2019

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1. Lipid molecules (fats) are used as energy storage in many animals. These molecules have many non-polar covalent bonds (C – C and C – H bonds… making these molecules hydrophobic).

What feature of these bonds makes lipids a good source of energy for cells? (2 points)

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2. Calories are a unit of energy. A gram of fat has 9 calories, so we get a lot of energy from fatty foods. Delicious! A gram of protein only has 4 calories. A gram of sugar also only has 4 calories. When breaking apart the bonds of these different biomolecules, why do we get fewer calories from proteins and carbohydrates than from fats (Hint, look at your answer for #1; 2 points)

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