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WorksheetsAP Biology Unit 1 Lipids
Total questions: 10
Worksheet time: 5mins
Which of the following element(s) are found in lipids?
Carbon / Hydrogen
Oxygen
Phosphorus
Sulfur
Nitrogen
Which of the following is NOT a lipid?
Steroid
Fat
Lipase
Phospholipid
Which of the following describes the difference between a phospholipid and a fat?
Phospholipids are polar and fats are nonpolar
Phospholipids are nonpolar and fats are polar
Phospholipids have one more fatty acid than fats
Phospholipids have one less fatty acid than fats
Phospholipids are amphipathic. Which of the following describes how that term applies to phospholipids?
The phosphate group is nonpolar and the fatty acids are polar
The phosphate group is polar and the fatty acids are nonpolar
The phosphate group can amplify signal transduction by phosphorylating signaling molecules
Fatty acids can amplify signal transduction by phosphorylating signaling molecules
Steroids are a type of hormone. Polar materials require a transport protein while nonpolar materials can easily pass through the plasma membrane. Which of the following describes how steroid hormones enter the cell.
Steroids are polar so they pass easily through the plasma membrane
Steroids are nonpolar so they pass easily through the plasma membrane
Steroids are polar so they require a transport protein to pass through the plasma membrane
Steroids are nonpolar so they require a transport protein to pass through the plasma membrane
Which of the following describes the difference between saturated and unsaturated fatty acids?
Saturated fatty acids are more polar than unsaturated fatty acids
Unsaturated fatty acids are more polar than saturated fatty acids
Saturated fatty acids have more double bonds than unsaturated fatty acids
Unsaturated fatty acids have more double bonds than saturated fatty acids
Lipids are polymers.
True
False
Which of the following describes the function of cholesterol (a steroid) in the plasma membrane?
Cholesterol is a polar compound that that aids in transport of polar substances across the membrane
Cholesterol acts as a receptor molecule to bind to signaling molecules in the signal transduction pathway
Cholesterol provides energy for active transport across the plasma membrane
Cholesterol binds to the fatty acid tails to maintain fluidity of the membrane
Which of the following describes the process to add a fatty acid to the glycerol in a triglyceride?
This is a dehydration reaction leading to water loss
This is a hydrolysis reaction leading to water loss
This is a dehydration reaction leading to water used
This is a hydrolysis reaction leading to water used
Which of the following describes why lipids are hydrophobic?
Lipids are composed mostly of hydrocarbons which are nonpolar
Lipids have hydrogen bonds that repel the hydrogen bonds in water
Lipids have more neutrons in their atoms, making the compound neutral
Lipids are gaseous materials that do not dissolve in water
