5: Membranes (part 1) Quizellenj2022-11-23T13:48:56-05:00 Please sign up for the course before taking this quiz. 1. REVIEW: A glycerol hanger with three fatty acids attached is called a:1 triglyderide hydrophobic tail phospholipid saturated fat 2. What important job does the lysosome do?1 Transports things across the cell. Breaks down proteins, starches and fats so their parts can be recycled. Builds cell membranes. Stores fats and protein molecules. 3. When a cell needs a bag to store or transport something, it uses a:1 zipper-lock baggie vesicle lysosome phospholipid 4. The Greek word for “dissolve or break apart” is:1 soma lipo vacuus lys 5. What geometric shape will phospholipids automatically form when put into a polar substance?1 sphere long line circle flat sheet 6. REVIEW: What does hydrophilic mean?1 water hating water loving 7. What is the electrical charge of a phosphate ion?1 3+ 3- 1- 1+ 8. REVIEW: Is water polar or non-polar?1 polar neither non-polar 9. What is the inside of a lysosome like?1 acidic salty neutral basic (alkaline) 10. Which part of a phospholipid molecule loves water– the head or the tails?1 tails head neither both 11. An empty phospholipid sphere is called a:1 liposome lysosome vesicle membrane 12. As a general rule, can an enzyme do more than one job?1 Yes No 13. How many different types of digestive enzymes might be in a lysosome?1 8 50 only one 3 14. An acid donates what to its environment?1 protons electrons hydroxide ions 15. A lipsome that is filled with water or air is called a:1 vacuole vesicle lysosome membrane 4: Lipids (part 2: Phospholipids) 6: Membranes (part 2: Membrane Transport) Back to: 5: Membranes (part 1)