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