Multiple choice

Oils and fats are included in

  1. Nucleic acids

  2. Proteins

  3. Lipids

  4. Carbohydrates

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Lipids are fats, including oils. Their structures include a membrane around the cells, which prevents them from mixing with water. Lipids include fatty acids; triglycerides, which is what most people think of as dietary fat; phospholipids, which are fats attached to a phosphate; and cholesterol, which produces steroids. Lipids are capable of expanding in shape or size.

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