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