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Which of the following would result from the action of phospholipase C on a membrane glycerophospholipid? A. Glycer...
13. Which of the following would decrease the transition temperature for a mixture of triglycerides and...
13. Which of the following would decrease the transition temperature for a mixture of triglycerides and cholesterol? A. Add glycerophospholipids with two (18:0). B. Reduce cholesterol concentration. C. Add triglycerides with two (16:1) and one (21:2) fatty acids. D. Add diacylglyerols with fully saturated fatty acids. 2. Add a low concentration of a wax." 14. Which of the following would result from the action of phospholipase Con a membran glycerophospholipid? A. Glycerol and two fatty acids B. One fatty acid...
2. Which of the following products result from the action of lipases on lipids? a fatty...
2. Which of the following products result from the action of lipases on lipids? a fatty acids b. glycerol c. monoglycerides d. all of these 3. Which of the following is the pathway used by cells to obtain energy from fatty acids? C-oxidation b. c-reduction c. B-oxidation d. B-reduction a
Complete the sentences describing membrane lipids by moving the names of the lipids to the appropriate...
Complete the sentences describing membrane lipids by moving the
names of the lipids to the appropriate targets. Some lipids will be
used more than once. Some targets require you to place two
or three lipids. (The second statement uses 3
lipids)
are abundant in the myelin sheath around the axons of some neurons. include two fatty acids joined to glycerol by ester linkages. are made up of a 1,2-diacylglycerol and a polar head group alcohol attached by a phosphodiester bond are...
12. Which of the following best describes the components of phospholipids? A) Glycerol, one fatty acid,...
12. Which of the following best describes the components of phospholipids? A) Glycerol, one fatty acid, two phosphate groups and an aminoalcohol B) Glycerol, two fatty acids, one phosphate group, and an aminoalcohol C) Sphingosine, two fatty acid, one phosphate group and an aminoalcohol D) Glycerol, three fatty acids, and a phosphate group 13. When ribose adopts the most stable cyclic structure hemiacetal, which of the following is happening? A. it becomes a furonose C. an acetal is formed B....
12. The glycolipid molecule is characterized by having a specific residue attached to the backbone. Which...
12. The glycolipid molecule is characterized by having a specific residue attached to the backbone. Which is that residue? 1. a) phosphate 2.b) glycerol 3. c) lipid 4.d) sugar 13. The steroid that is the raw material for the production of other steroids is 1. a) triglyceride. 2. b) cholesterol. 3. c) progesterone. 4. d) eicosanoid. 14. Which compounds are responsible for causing pain and inflammation 1. a) anabolic steroids 2. b) adrenocorticoids 3. c) prostaglandins 4. d) leukotrienes 7...
Help me please?? 16. Which of the following types of compounds are expected products from the...
Help me please??
16. Which of the following types of compounds are expected products from the saponification of an oil? a. glycerol and fatty acids b. glycerol and fatty acid salts c. fatty acid salts and fatty acids d. fatty acids and glycine 17. Prostaglandins and thromboxanes are classes of eicosanoids. a. TRUE b. FALSE In general, lipids are substances that are only sparingly soluble in water a. TRUE b. FALSE 18. 19. In activ e transport, a substance crosses...
3. Many snake venoms contain a phospholipase A2 enzyme that hydrolyzes the C2 fatty acid from...
3. Many snake venoms contain a phospholipase A2 enzyme that hydrolyzes the C2 fatty acid from a phospholipid to yield a corresponding lysophospholipid with a single hydrocarbon tail. High concentrations of lysophospholipids can disrupt membrane function and lead to cell death. 0 0 CH-0-0-R R-0-0-CH 0 CH2-0-P-0-X 0 Phospholipid HOR -C-OH free fatty acid CH-0-C-R + H-0ẠCH 0 phospholipase A2 CH,-0-2--0-X 0 Lysophospholipid Figure 2. Action of phospholipase A2. X=polar head group. R=long hydrocarbon tails. a. Phospholipids do not form...
Which way do the fatty acid tails of a phospholipid face in a cell membrane?
QUESTION 1Which way do the fatty acid tails of a phospholipid face in a cell membrane?a.toward the inside of the cellb.toward the outside of the cellc.both directionsd.They lay parallel to the direction of the membrane.QUESTION 2A readily available source of energy that cells use to drive reactions is stored in the ___________ bond.a.phosphodiesterb.phosphoanhydridec.hydrogend.peptideQUESTION 3Which of the following occurs by bringing nonpolar surfaces together to exclude water?a.hydrogen bondsb.hydrophobic forcesc.Van der Waals attractionsd.electrostatic attractionsQUESTION 4How many bonds are made by a carbon...
Which of the following is an acceptable term/name used for a molecule in which two carbons...
Which of the following is an acceptable term/name used for a molecule in which two carbons of glycerol are attached to fatty acid chains, and the third carbon of glycerol is attached to a phosphate group? C sphingomyelin C phospholipid C phosphosteroid C triacylglycerol A nucleotide is different from a nucleoside because a nucleotide has C a ribose sugar. C a deoxyribose sugar. C at least one phosphate group. nitrogen-containing base. Most types of molecules in the cell have asymmetric...
9. Some diseases result from defective transport across the membrane. For example, cystic fibrosis results when...
9. Some diseases result from defective transport across the membrane. For example, cystic fibrosis results when a chloride ion transporter does not function. Which of the following is affected when this transporter does NOT function? the electrical gradient of the cell neither the chloride gradient nor the electrical gradient of the cell the chloride concentration gradient both the chloride concentration gradient and the electrical gradient of the cell 10. Which way does the water move if the cell is in...
13. Which of the following would decrease the transition temperature for a mixture of triglycerides and cholesterol? A. Add glycerophospholipids with two (18:0). B. Reduce cholesterol concentration. C. Add triglycerides with two (16:1) and one (21:2) fatty acids. D. Add diacylglyerols with fully saturated fatty acids. 2. Add a low concentration of a wax." 14. Which of the following would result from the action of phospholipase Con a membran glycerophospholipid? A. Glycerol and two fatty acids B. One fatty acid...
2. Which of the following products result from the action of lipases on lipids? a fatty acids b. glycerol c. monoglycerides d. all of these 3. Which of the following is the pathway used by cells to obtain energy from fatty acids? C-oxidation b. c-reduction c. B-oxidation d. B-reduction a
Complete the sentences describing membrane lipids by moving the
names of the lipids to the appropriate targets. Some lipids will be
used more than once. Some targets require you to place two
or three lipids. (The second statement uses 3
lipids)
are abundant in the myelin sheath around the axons of some neurons. include two fatty acids joined to glycerol by ester linkages. are made up of a 1,2-diacylglycerol and a polar head group alcohol attached by a phosphodiester bond are...
12. Which of the following best describes the components of phospholipids? A) Glycerol, one fatty acid, two phosphate groups and an aminoalcohol B) Glycerol, two fatty acids, one phosphate group, and an aminoalcohol C) Sphingosine, two fatty acid, one phosphate group and an aminoalcohol D) Glycerol, three fatty acids, and a phosphate group 13. When ribose adopts the most stable cyclic structure hemiacetal, which of the following is happening? A. it becomes a furonose C. an acetal is formed B....
12. The glycolipid molecule is characterized by having a specific residue attached to the backbone. Which is that residue? 1. a) phosphate 2.b) glycerol 3. c) lipid 4.d) sugar 13. The steroid that is the raw material for the production of other steroids is 1. a) triglyceride. 2. b) cholesterol. 3. c) progesterone. 4. d) eicosanoid. 14. Which compounds are responsible for causing pain and inflammation 1. a) anabolic steroids 2. b) adrenocorticoids 3. c) prostaglandins 4. d) leukotrienes 7...
Help me please??
16. Which of the following types of compounds are expected products from the saponification of an oil? a. glycerol and fatty acids b. glycerol and fatty acid salts c. fatty acid salts and fatty acids d. fatty acids and glycine 17. Prostaglandins and thromboxanes are classes of eicosanoids. a. TRUE b. FALSE In general, lipids are substances that are only sparingly soluble in water a. TRUE b. FALSE 18. 19. In activ e transport, a substance crosses...
3. Many snake venoms contain a phospholipase A2 enzyme that hydrolyzes the C2 fatty acid from a phospholipid to yield a corresponding lysophospholipid with a single hydrocarbon tail. High concentrations of lysophospholipids can disrupt membrane function and lead to cell death. 0 0 CH-0-0-R R-0-0-CH 0 CH2-0-P-0-X 0 Phospholipid HOR -C-OH free fatty acid CH-0-C-R + H-0ẠCH 0 phospholipase A2 CH,-0-2--0-X 0 Lysophospholipid Figure 2. Action of phospholipase A2. X=polar head group. R=long hydrocarbon tails. a. Phospholipids do not form...
Which of the following is an acceptable term/name used for a molecule in which two carbons of glycerol are attached to fatty acid chains, and the third carbon of glycerol is attached to a phosphate group? C sphingomyelin C phospholipid C phosphosteroid C triacylglycerol A nucleotide is different from a nucleoside because a nucleotide has C a ribose sugar. C a deoxyribose sugar. C at least one phosphate group. nitrogen-containing base. Most types of molecules in the cell have asymmetric...
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