3: Lipids and glycerol Quizellenjmchenry2021-10-01T23:29:55-04:00 Please sign up for the course before taking this quiz. Which are liquids at room temperature?1 unsaturated fats saturated fats What is the process called when two molecules are joined together by taking an OH off of one molecule and an H off of the other, and form water as a byproduct?1 dehydration dehydration synthesis covalent bonding hydrogen bonding Where do you find a lot of palmitic acid?1 In olive oil. Only in plants such as palms and coconuts. In palms but also in human fat cells. What do you call fatty acids that our bodies cannot make but must get from food?1 saturated fatty acids unsaturated fatty acids triglycerides essential fatty acids Which part of a fatty acid is the acid part?1 neither both chain of carbon atoms COOH (carboxyl group) How many carbon atoms are in a glycerol molecule?1 2 1 6 3 Which of these statements has nothing to do with why unsaturated fatty acids look bent at the end?1 There is a double bond where the bend is. Hydrgogens hate to be next to each other and move as far apart as possible. Some hydrogen atoms are "missing." Dehydration synthesis took place. What kind of cell stores triglycerides?1 fat cells skin cells muscle cells nerve cells What is another word for glycerol?1 glyphosate glycerin nitroglycerin glucose What makes a saturated fatty acid saturated?1 It has a COOH at the end. Each carbon atom has all the hydrogen atoms it can possibly hold. It is a liquid at room temperature. The carbon chain has lost some hydrogen atoms. Which of these fatty acids is the shortest?1 palmitic acid stearic acid lauric acid oleic acid Which of these words is actually related to the “lin” in linoleic acid?1 lion line linoleum linen Does it matter if you have a lot of triglycerides floating around in your blood?1 Yes No What is required to attached a fatty acid to a glycerol?1 a water molecule a special enzyme nothing scissors and glue What molecule can attach to one, two, or three fatty acids?1 the carboxyl group nitroglycerin long chains of carbon atoms glycerol What common household item is glycerol most like?1 sponge spoon sock hanger How many fatty acids does a diglyceride have?1 0 3 2 1 Does glycerol ALWAYS have three fatty acids attached to it?1 No Yes What is a good source of oleic acid?1 olive oil coconut oil butter bone marrow What does the 3 mean in an omega-3 fatty acid?1 It has 3 missing hydrogens. It is part of a triglyceride and tri means 3. It has 3 oxygen atoms. The double bond is the 3rd carbon up from the bottom. 2: Carbon atoms and fatty acids 4: Lipids (part 2: Phospholipids) Back to: 3: Lipids and glycerol
