5: Membranes (part 1) Quizellenjmchenry2021-10-01T23:30:02-04:00 Please sign up for the course before taking this quiz. What important job does the lysosome do?1 Builds cell membranes. Transports things across the cell. Stores fats and protein molecules. Breaks down proteins, starches and fats so their parts can be recycled. What geometric shape will phospholipids automatically form when put into a polar substance?1 sphere flat sheet long line circle Can an enzyme do more than one job?1 No Yes What is the electrical charge of a phosphate ion?1 3- 1+ 1- 3+ What is the inside of a lysosome like?1 neutral salty acidic basic (alkaline) The Greek word for “dissolve or break apart” is:1 soma vacuus lys lipo An empty phospholipid sphere is called a:1 lysosome membrane liposome vesicle REVIEW: Is water polor or non-polar?1 non-polar polar neither How many different types of digestive enzymes might be in a lysosome?1 50 only one 8 3 Which part of a phospholipid molecule loves water– the head or the tails?1 head neither tails both When a cell needs a bag to store or transport something, it uses a:1 phospholipid zipper-lock baggie lysosome vesicle A lipsome that is filled with water or air is called a:1 vacuole lysosome membrane vesicle REVIEW: What does hydrophilic mean?1 water loving water hating REVIEW: A glycerol hanger with three fatty acids attached is called a:1 phospholipid saturated fat hydrophobic tail triglyderide An acid donates what to its environment?1 electrons protons hydroxide ions 4: Lipids (part 2: Phospholipids) 6: Membranes (part 2: Membrane Transport) Back to: 5: Membranes (part 1)
