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