Lipids Video Lesson

What makes lipids different from carbohydrates in terms of their atomic composition?

• Lipids are made only of carbon and hydrogen.

• Lipids and carbohydrates have the exact same atomic composition.

• Lipids have more carbon and hydrogen but less oxygen than carbohydrates.

• Lipids have more oxygen than carbohydrates.

Why are unsaturated fats usually liquid at room temperature?

• They are made of repeating sugar units.

• Their chains have bends caused by double bonds, preventing tight packing.

• They contain more oxygen atoms than saturated fats.

• They have straight chains that pack tightly together.

Which of the following is a source of unsaturated fats?

• Olive oil

• Cheese

• Butter

• Fried foods

What is the primary role of triglycerides in the body?

• Forming cell membranes

• Providing waterproof coatings

• Storing long-term energy

• Acting as chemical messengers

What is the function of phospholipids in cells?

• They deliver chemical messages to cells.

• They act as waterproof coatings for plants.

• They form the cell membrane and control what enters and exits the cell.

• They store energy for long-term use.