Podcast
Questions and Answers
What is the main force driving the formation of lipid bilayers?
What is the main force driving the formation of lipid bilayers?
- Hydrophobic interaction (correct)
- Van der Waals forces
- Ionic interactions
- Hydrogen bonding
What is the characteristic of triglycerides rich in unsaturated fatty acids?
What is the characteristic of triglycerides rich in unsaturated fatty acids?
- They are generally solids at room temperature
- They are generally liquids at room temperature (correct)
- They are generally semisolids at room temperature
- They have a high melting point
What is the arrangement of hydrocarbon tails in the interior of lipid bilayers rich in unsaturated fatty acids?
What is the arrangement of hydrocarbon tails in the interior of lipid bilayers rich in unsaturated fatty acids?
- Fluid (correct)
- Compact crystalline
- Disordered
- Rigid
Why do triglycerides rich in unsaturated fatty acids have lower melting points?
Why do triglycerides rich in unsaturated fatty acids have lower melting points?
What is the characteristic of the polar head groups in a lipid bilayer?
What is the characteristic of the polar head groups in a lipid bilayer?
What is the characteristic of triglycerides rich in saturated fatty acids?
What is the characteristic of triglycerides rich in saturated fatty acids?
What is the main component of the coatings of nerve axons?
What is the main component of the coatings of nerve axons?
What is the name of the molecule from which glycerophospholipids are derived?
What is the name of the molecule from which glycerophospholipids are derived?
What is the characteristic of the fatty acid on carbon 2 of glycerol in phosphatidic acids?
What is the characteristic of the fatty acid on carbon 2 of glycerol in phosphatidic acids?
Why do unsaturated fatty acids have a lower melting point than saturated fatty acids?
Why do unsaturated fatty acids have a lower melting point than saturated fatty acids?
What is the most abundant steroid in the human body?
What is the most abundant steroid in the human body?
What is the purpose of hydrogenation hardening?
What is the purpose of hydrogenation hardening?
What is the characteristic of glycerophospholipids in plant and animal membranes?
What is the characteristic of glycerophospholipids in plant and animal membranes?
What is the main carrier of cholesterol in the blood?
What is the main carrier of cholesterol in the blood?
What is a characteristic shared by all lipids?
What is a characteristic shared by all lipids?
What type of compounds are produced through the partial hydrogenation of polyunsaturated oils?
What type of compounds are produced through the partial hydrogenation of polyunsaturated oils?
What is the alcohol component of sphingolipids?
What is the alcohol component of sphingolipids?
What is the general structure of a triglyceride?
What is the general structure of a triglyceride?
What are the female sex hormones synthesized in the ovaries?
What are the female sex hormones synthesized in the ovaries?
What is the role of cholesteryl esters in the liver?
What is the role of cholesteryl esters in the liver?
Where do HDL transport cholesterol from?
Where do HDL transport cholesterol from?
What is the function of COX-2?
What is the function of COX-2?
What are the oxidation products of cholesterol?
What are the oxidation products of cholesterol?
Where are androgens synthesized?
Where are androgens synthesized?
Where are bile salts synthesized and stored?
Where are bile salts synthesized and stored?
What is the result of thromboxane A2 on platelets and blood vessels?
What is the result of thromboxane A2 on platelets and blood vessels?
What is the effect of leukotrienes on the lungs?
What is the effect of leukotrienes on the lungs?
What is the mechanism of action of aspirin and other NSAIDs?
What is the mechanism of action of aspirin and other NSAIDs?
What is the potency of leukotrienes relative to histamine?
What is the potency of leukotrienes relative to histamine?