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