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