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