5: Membranes (part 1) Quizellenjmchenry2022-09-06T13:51:00-04:00 Please sign up for the course before taking this quiz. What important job does the lysosome do?1 Builds cell membranes. Breaks down proteins, starches and fats so their parts can be recycled. Transports things across the cell. Stores fats and protein molecules. When a cell needs a bag to store or transport something, it uses a:1 vesicle lysosome phospholipid zipper-lock baggie The Greek word for “dissolve or break apart” is:1 lys lipo soma vacuus What geometric shape will phospholipids automatically form when put into a polar substance?1 circle long line sphere flat sheet A lipsome that is filled with water or air is called a:1 vacuole vesicle membrane lysosome REVIEW: A glycerol hanger with three fatty acids attached is called a:1 phospholipid triglyderide hydrophobic tail saturated fat How many different types of digestive enzymes might be in a lysosome?1 50 8 3 only one REVIEW: Is water polor or non-polar?1 polar non-polar neither Which part of a phospholipid molecule loves water– the head or the tails?1 tails head neither both What is the electrical charge of a phosphate ion?1 3- 1+ 1- 3+ As a general rule, can an enzyme do more than one job?1 Yes No An acid donates what to its environment?1 hydroxide ions protons electrons What is the inside of a lysosome like?1 neutral basic (alkaline) salty acidic An empty phospholipid sphere is called a:1 liposome membrane lysosome vesicle REVIEW: What does hydrophilic mean?1 water loving water hating 4: Lipids (part 2: Phospholipids) 6: Membranes (part 2: Membrane Transport) Back to: 5: Membranes (part 1)
