Homework Answers
13.C.Add triglycerides with two (16:1) and cne (21:2) fatty acid.
14.E.A diacylglycerol and a polar group containing phosphate.
16.E.Gas-liquid chromatography.
17.C.An alkyl chain on the D-ring.
18.B.They are synthesized in endoplasmic reticulum, unlike Vitamins B and C,which are made in cytosol.
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13. Which of the following would decrease the transition temperature for a mixture of triglycerides and...
Which of the following would result from the action of phospholipase C on a membrane glycerophospholipid? A. Glycer...
Which of the following would result from the action of phospholipase C on a membrane glycerophospholipid? A. Glycerol and two fatty acids B. One fatty acid and one monoacylglycerol C. A sugar phosphate and glycerol D. A lysophospholipid and a diacylglycerol E. A diacylglycerol and a polar group containing phosphate
1. Triacylglycerols, or triglycerides, are triesters formed from glycerol and three _____ molecules. 2. Triacylglycerols are...
1. Triacylglycerols, or triglycerides, are triesters formed from glycerol and three _____ molecules. 2. Triacylglycerols are stored in _____ cells below the skin and concentrated in some regions of the body. 3. The _____ is the aqueous medium inside the cell, separated from water outside the cell by the cell membrane. 4. Which statement is not true? a) Vitamin A is obtained from liver, oily fish, and dairy products. b) Vitamin E is an antioxidant, protecting unsaturated side chains in...
Which of the following is NOT a property of membrane lipids Select one: a. The two...
Which of the following is NOT a property of membrane lipids Select one: a. The two leaflets of the plasma membrane have different lipid composition b. Most fatty acids attached to lipids have a length of 16 to 22 carbon atoms c. The plasma membrane is composed of a mixture of glycerolipids, sphingolipids and cholesterol. d. Phospholipids prefer to form micelles e. Cholesterol increases the order of fatty acid side chains
16. Fats and oils are also known as - a triglycerides b. tripeptides sterols d. phospholipids...
16. Fats and oils are also known as - a triglycerides b. tripeptides sterols d. phospholipids 17. Cell membranes are composed of a __bilayer. a triglyceride c. sterol b. tripeptide d. phospholipid 18. The degree of saturation of a fatty acid is determined by the number of - atoms in the molecule. a. carbon c. hydrogen b. oxygen d. nitrogen 19. Foods high in cholesterol include all of the following except a. liver C. eggs b. milk d. peanut butter...
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....
Which statement about energy metabolism is correct? a. Glycogen stored in the pancreas provides a reserve...
Which statement about energy metabolism is correct? a. Glycogen stored in the pancreas provides a reserve supply of glucose. b. Vitamins stored in the gallbladder are released as needed. c. During an extended fast, fat reserves stored in fat cells provide energy for cellular processes. d. Liver cells hold reserves of calcium and sodium that can be drawn on to keep blood levels constant. e. Amino acids stored in the kidneys can supply protein needs on a long-term basis. Which...
3. Identify the following features of this phospholipid:
3. Identify the following features of this phospholipid: a. Is the phospholipid formed from glycerol or sphingosine? b. What is the fatty acid? c. What type of bond connects the fatty acid? d. What is the amino alcohol?5. What is the function of the lipid bilayer in a cell membrane?6. How do molecules of cholesterol affect the structure of cell membranes?7. How do the unsaturated fatty acids in the phospholipids affect the structure of cell membranes? 9. What is the difference between...
PLEASE ANSWER THE QUESTIONS BELOW, I DO NOT THINK THEY ARE ANSWERED CORRECTLY Mike is a...
PLEASE ANSWER THE QUESTIONS BELOW, I DO NOT THINK THEY ARE
ANSWERED CORRECTLY
Mike is a 58-year-old mechanic who has worked in the same garage for most of his adult life. Although his is still quite strong for his age and doesn't have too many aches or pains yet, he has gained 30 pounds during the last few years, since his divorce. His ex-wife was a good cook who made dinner at home, but now that's he's single, Mike eats...
23. Which of the following molecules is not found in the triglycerides of Cow's milk? A)...
23. Which of the following molecules is not found in the triglycerides of Cow's milk? A) Palmitic acid B) Oleic acid C) Stearic acid D) Lauric acid E) Myrisitic acid 24. Milk is a colloidal suspension of A) Fat B) Nucleic acids C) Carbohydrates D) Proteins E) Cholesterol 25. Polyhydroxyalkanaoates, a common biopolymer used in medical sutures, are extracted from bacteria that produce them by fermenting A) Amino acids B) carbohydrates C) nucleic acids D) nucleotides E) Proteins
Which of these statements about the composition of membranes is true?
Which of these statements about the composition of membranes is true?A) All biological membranes contain cholesterol.B) Free fatty acids are major components of all membranes. C) The inner and outer membranes of mitochondria have different protein compositions.D) The lipid composition of all membranes of eukaryotic cells is essentially the same.E) The lipid: protein ratio varies from about 1: 4 to 4: 1Membrane proteins:A) ere sometimes covalently attached to lipid moieties:B) are sometimes covalently attached to carbohydrate moieties.C) are composed of...
Which of the following would result from the action of phospholipase C on a membrane glycerophospholipid? A. Glycerol and two fatty acids B. One fatty acid and one monoacylglycerol C. A sugar phosphate and glycerol D. A lysophospholipid and a diacylglycerol E. A diacylglycerol and a polar group containing phosphate
16. Fats and oils are also known as - a triglycerides b. tripeptides sterols d. phospholipids 17. Cell membranes are composed of a __bilayer. a triglyceride c. sterol b. tripeptide d. phospholipid 18. The degree of saturation of a fatty acid is determined by the number of - atoms in the molecule. a. carbon c. hydrogen b. oxygen d. nitrogen 19. Foods high in cholesterol include all of the following except a. liver C. eggs b. milk d. peanut butter...
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....
PLEASE ANSWER THE QUESTIONS BELOW, I DO NOT THINK THEY ARE
ANSWERED CORRECTLY
Mike is a 58-year-old mechanic who has worked in the same garage for most of his adult life. Although his is still quite strong for his age and doesn't have too many aches or pains yet, he has gained 30 pounds during the last few years, since his divorce. His ex-wife was a good cook who made dinner at home, but now that's he's single, Mike eats...
23. Which of the following molecules is not found in the triglycerides of Cow's milk? A) Palmitic acid B) Oleic acid C) Stearic acid D) Lauric acid E) Myrisitic acid 24. Milk is a colloidal suspension of A) Fat B) Nucleic acids C) Carbohydrates D) Proteins E) Cholesterol 25. Polyhydroxyalkanaoates, a common biopolymer used in medical sutures, are extracted from bacteria that produce them by fermenting A) Amino acids B) carbohydrates C) nucleic acids D) nucleotides E) Proteins
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