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