Lipids in Biology

Lipids in Biology Worksheet

Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.

Lipids are a diverse group of organic compounds that include fats, oils, hormones, and certain components of membranes. They are essential for life and perform many important functions in the body. Let's explore them!

1. Which of the following is NOT a primary function of lipids in living organisms?

2. Which type of lipid is the main component of cell membranes?

3. Lipids are generally   in water, meaning they do not dissolve easily.

4. Fats and oils are types of lipids called  , which are made of a glycerol molecule and three fatty acids.

5. A common example of a steroid lipid is  , which is important for cell membrane structure and hormone production.

6. Saturated fats are typically liquid at room temperature.

7. Lipids provide more energy per gram than carbohydrates or proteins.

8. Briefly explain why lipids are important for insulation in animals.

9. Describe one difference between saturated and unsaturated fatty acids.

10. Observe the image below, which shows a general representation of lipid molecules. Though complex, you can see the long chains that are characteristic of these molecules.