Answer 16-22 e positively charged a. a - helix b. ß-sheet c. Double-helix d. Pho

Question

Answer 16-22 e positively charged a. a - helix b. ß-sheet c. Double-helix d. Phospholipid bilayer 17. In a saturated fatty acid, each carbon in the fatty acid chain is saturated with atoms. a. Hydrogen b. Carbon c. Nitrogen d. Oxygen 18. Which of the following regulates the fluidity of a cell membrane? a. Phospholipids b. Carbohydrates c. Steroids or cholesterols d. Proteins Which of the following parts in a phospholipid molecule is negatively charged? a. Glycerol b. Fatty acid tails c. Phosphate group d. None of these 19. 20. What is the major function of triglycerides in an organism? a. Make up cellular membranes b. Store energy Regulate the fluidity of cell membrane c. d. Serve as a structural component of the cell wall 21. Accurately speaking, margarine is_ a. A type of animal fats b. Another name for natural butter c. Saturated vegetable oil d. Liquid at room temperature 22. Olestra, a synthetic fat used to make potato chips, a. Contains three fatty acid in each molecule b. Can cause people to gain weight c. Can be digested by humans d. Has no side effect

Explanation / Answer

16. phospholipid layer

17. hydrogen

18. phospholipids

19. phosphate group

20. store energy

21. saturated vegetative oil

22. contains three fatty acid in eaach molecule

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