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