Which of the following polysaccharides is a component of the extracellular matrix and connective tissue? a. glycogen b. hyaluronic acid c. chitin d. cellulose
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Which of the following polysaccharides is a component of the extracellular matrix and connective tissue?
a. glycogen
b. hyaluronic acid
c. chitin
d. cellulose
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- All glycerol-containing phospholipids are derived from:a. Ceramideb. Gangliosidec. Mevalonated. PhosphatidateA suspension of which of the following is most likely to form a liposome? i. Fatty acids ii. Triacylglycerols iii. iv. Sphingomyelins Glycerophospholipids iii & iv O ii & iv O ii & iii O i & ii Oi & ivWhich of the following correctly describes how high levels of fatty acid structures contribute to the rigidity of the cell membrane? The cell membrane becomes more rigid as the amount of unsaturated fatty acids with a kinked structure increases. The cell membrane becomes more rigid as the amount of unsaturated fatty acids with a kinked structure increases. The cell membrane becomes more rigid as the amount of saturated fatty acids with a straight structure increases. The cell membrane becomes more rigid as the amount of saturated fatty acids with a straight structure increases. The cell membrane becomes less rigid as the amount of unsaturated fatty acids with a straight structure increases. , , The cell membrane becomes less rigid as the amount of unsaturated fatty acids with a straight structure increases. , , The cell membrane becomes less rigid as the amount of saturated fatty acids with a straight structure increases.
- Write 2 (any) functions of membrane carbohydrates and explain the functions.Which of these general statements is TRUE about the lipid called phosphatidylethanolamine (or PE)? PE is NOT an aminophospholipid. 3 of these 4 responses are correct PE resides mainly in the outer leaflet of the membrane bilayer. PE is zwitterionic at normal cell pH. PE is a type of cholesterol.Identify which lipids are important components of the cellular membrane. SELECT ALL THAT APPLY A. Phospholipids B. Bile Salts C. Fatty Acids D. Cholesterol
- Which of these general statements is TRUE about the lipid called phosphatidylethanolamine (or PE)? PE is zwitterionic at normal cell pH. PE is an aminophospholipid. 3 of these 4 responses are correct PE is a type of cholesterol. PE resides mainly in the inner leaflet of the membrane bilayer.Define the following terms:a. phosphoglycerideb. sphingolipidc. GPI anchord. glycolipide. sphingomyelinWhich of the following statements is/are incorrect? 1. The cell membrane is purely hydrophobic. 2. Glycerophospholipids have a phosphate derivative group that is known as the polar head group. 3. The individual glycerophospholipid molecules that aggregate become covalently linked to each other to form a lipid bilayer. 4. The interfacial region of a lipid bilayer is polar due to the polar head groups of the lipid molecules that make up the bilayer. O 1 and 3 O 1 only O 2 and 4 O 3 only O 4 only
- Which of the following polysaccharides is used as an energy-storage molecule in plants?a. glycogenb. chitinc. starchd. celluloseWhich of the following fatty acids, if incorporated into a typical eukaryotic membrane phospholipid, would be the most likely to decrease that membrane’s fluidity? A. linolenic acid, with 18 carbons and three carbon-to-carbon double bonds B. linoleic acid, with 18 carbons and two carbon-to-carbon double bonds C. oleic acid, with 18 carbons and one carbon-to-carbon double bond D. stearic acid, with 18 carbons and no carbon-to-carbon double bonds E. all of the above molecules are saturated, and equally likely to decrease membrane fluidityState the functions and importance of each of the following cell membrane components. 1. Phospholipid 2. Sphingolipid 3. Glycoprotein 4. Glycolipid 5. Peripheral Protein 6. Integral Protein 7. Cholesterol 8. Cytoskeleton Filaments