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