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