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