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