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