5: Membranes (part 1) Quizellenj2026-05-30T20:57:26-04:00 Please sign up for the course before taking this quiz. 1. What geometric shape will phospholipids automatically form when put into a polar substance?1 circle long line sphere flat sheet 2. What is the inside of a lysosome like?1 salty neutral acidic basic (alkaline) 3. What is the electrical charge of a phosphate ion?1 1- 3- 1+ 3+ 4. An acid donates what to its environment?1 electrons protons hydroxide ions 5. REVIEW: Is water polar or non-polar?1 neither polar non-polar 6. Which part of a phospholipid molecule loves water– the head or the tails?1 head neither both tails 7. REVIEW: A glycerol hanger with three fatty acids attached is called a:1 triglyderide saturated fat phospholipid hydrophobic tail 8. An empty phospholipid sphere is called a:1 vesicle membrane liposome lysosome 9. As a general rule, can an enzyme do more than one job?1 Yes No 10. REVIEW: What does hydrophilic mean?1 water loving water hating 11. 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. 12. The Greek word for “dissolve or break apart” is:1 lys vacuus lipo soma 13. A lipsome that is filled with water or air is called a:1 membrane vacuole vesicle lysosome 14. A lysosome can have as many as ___ digestive enzymes?1 50 3 8 only one 15. When a cell needs a bag to store or transport something, it uses a:1 lysosome zipper-lock baggie vesicle phospholipid 4: Lipids (part 2: Phospholipids) 6: Membranes (part 2: Membrane Transport) Back to: 5: Membranes (part 1)
