Homework Answers
Ans 1: D) All lipids contain fatty acids
Lipids are the hydrophobic molecules that are not soluble in water but are soluble in organic solvents. These lipids mostly contain fatty acids as one of their constituent but not all the lipids contain fatty acids necessarily.
These compounds have an ester functional group and are of different types such as : wax , glycolipids , phospholipids etc.
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Which statement is not true? A) Lipids are found in cell membranes. B) Lipids are soluble...
1. Which of the following statements describes lipids? A) Lipids all have the steroid backbone. B)...
1. Which of the following statements describes lipids? A) Lipids all have the steroid backbone. B) The body stores excess calories as lipids. C) Lipids are insoluble in water, but soluble in nonpolar solvents. D) Lipids are soluble in water, but insoluble in nonpolar solvents. E) Lipids are insoluble in all solvents 2. Which of the following type of molecule is not a lipid? A) amino acid B) triglyceride C) phospholipid D) steroid E) eicosanoid 3. Which type of lipid...
12) Which statement is NOT true? A) There are many different types of lipids. B) Lipids...
12) Which statement is NOT true? A) There are many different types of lipids. B) Lipids are found in cell membranes. C) Some hormones are lipids. D) Lipids are soluble in organic solvents. E) All lipids contain fatty acids. 13) The process of building up new molecules in the coll is called A) glycolysis. B) catabolism. C) anabolism. D) metabolism. E) transamination 14) Which of the following does not require energy from ATP hydrolysis? A) digestion B) synthesis of an...
identify your answer. (2 pts ea) 12) Which statement is NOT true? A) There are many different types of lipids. B)...
identify your answer. (2 pts ea) 12) Which statement is NOT true? A) There are many different types of lipids. B) Lipids are found in cell membranes. C) Some hormones are lipids D) Lipids are soluble in organic solvents. E) All lipids contain fatty acids. 13) The process of building up new molecules in the coll is called A) glycolysis. B) catabolism. C) anabolism. D) metabolism E) transamination. 14) Which of the following does not require energy from ATP hydrolysis?...
9. Alpha-helices and B-pleated sheets are both examples of a. primary structure. b. secondary structure. c....
9. Alpha-helices and B-pleated sheets are both examples of a. primary structure. b. secondary structure. c. tertiary structure. d. quaternary structure. 14. The most common moti uispersion forces nost common motifs for this level of structure are the helix and the B- pleated sheet a. primary structure b. secondary structure c. tertiary structure d. quaternary structure e. both secondary and tertiary of a protein. 15. The amino acid sequence is the a. primary structure b. secondary structure c. tertiary structure...
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...
60) Lipids are composed of: c) fatty acids and glycerol amino acids and glycerol nucleic acids...
60) Lipids are composed of: c) fatty acids and glycerol amino acids and glycerol nucleic acids and glycerol fatty acids and water fatty acids and sugar e) 61) The bond between two amino acids is a: a) hydrogen bond b) covalent bond c) peptide bond d) b and c e) none of the above 62) Hemoglobin has which tertiary structure: a) fibrous b) globular c) four subunits--two alpha chains, two beta chains d) alpha helix e) none of the above...
Which of the following statements about lipids is FALSE? a) Fatty acids are amphipathic molecules that...
Which of the following statements about lipids is FALSE? a) Fatty acids are amphipathic molecules that can form micelles in aqueous solution. b) Triglycerides store less energy than a similar mass of glycogen. c) Prostaglandin and thromboxane are important signaling molecules that are fatty acid derivatives. d) Steroid hormones are sufficiently non-polar to diffuse through cell membranes without the help of a transporter. e) Phospholipids are amphipathic molecules that can form vesicles in aqueous solution.
Your answer is incorrect. Try again. Membranes contain lipids: O that contain saturated fatty acid residues....
Your answer is incorrect. Try again. Membranes contain lipids: O that contain saturated fatty acid residues. O which can affect the rigidity of the membrane. O with hydrophilic heads oriented to the interior of the membrane. o with hydrophobic tails oriented at the surface of the membrane. Click if you would like to Show Work for this question: Open Show Work LINK TO TEXT x Your answer is incorrect. Try again. A protein moves an amino acid across a membrane...
The _______ of amino acids in a protein is referred to as its primary structure
24. The _______ of amino acids in a protein is referred to as its primary structure. A) twisting B) sequencing C) folding D) none of these 25. The structure of a protein is most important because the _______ of the amino acids determines its overall shape, function and properties. A) primary, twisting B) primary, sequencing C) secondary, twisting D) secondary, folding E) none of these 26. The secondary structure of a protein is due to_______ between amino acid residues. A) hydrophobic interactions B) hydrogen bonding...
xProteins Quiz x ipids Quiz x Lipids Quiz t/view do?attempt- 1&context 0a4ce60a0a0001dc4786cd79dbacf795 Question1 Select one answer...
xProteins Quiz x ipids Quiz x Lipids Quiz t/view do?attempt- 1&context 0a4ce60a0a0001dc4786cd79dbacf795 Question1 Select one answer Where do peptide bonds form? A. Between adjacent carboxyl groups on amino acids. B. Between amino acids of two different protein chains. C. Between the carboxyl group of one amino acid and the amino group of another amino o points acid. D. Between adjacent amino groups on amino acids. Question2 Select one answer The following structure is the amino acid glutamic acid. Four atoms...
12) Which statement is NOT true? A) There are many different types of lipids. B) Lipids are found in cell membranes. C) Some hormones are lipids. D) Lipids are soluble in organic solvents. E) All lipids contain fatty acids. 13) The process of building up new molecules in the coll is called A) glycolysis. B) catabolism. C) anabolism. D) metabolism. E) transamination 14) Which of the following does not require energy from ATP hydrolysis? A) digestion B) synthesis of an...
identify your answer. (2 pts ea) 12) Which statement is NOT true? A) There are many different types of lipids. B) Lipids are found in cell membranes. C) Some hormones are lipids D) Lipids are soluble in organic solvents. E) All lipids contain fatty acids. 13) The process of building up new molecules in the coll is called A) glycolysis. B) catabolism. C) anabolism. D) metabolism E) transamination. 14) Which of the following does not require energy from ATP hydrolysis?...
9. Alpha-helices and B-pleated sheets are both examples of a. primary structure. b. secondary structure. c. tertiary structure. d. quaternary structure. 14. The most common moti uispersion forces nost common motifs for this level of structure are the helix and the B- pleated sheet a. primary structure b. secondary structure c. tertiary structure d. quaternary structure e. both secondary and tertiary of a protein. 15. The amino acid sequence is the a. primary structure b. secondary structure c. tertiary structure...
60) Lipids are composed of: c) fatty acids and glycerol amino acids and glycerol nucleic acids and glycerol fatty acids and water fatty acids and sugar e) 61) The bond between two amino acids is a: a) hydrogen bond b) covalent bond c) peptide bond d) b and c e) none of the above 62) Hemoglobin has which tertiary structure: a) fibrous b) globular c) four subunits--two alpha chains, two beta chains d) alpha helix e) none of the above...
Your answer is incorrect. Try again. Membranes contain lipids: O that contain saturated fatty acid residues. O which can affect the rigidity of the membrane. O with hydrophilic heads oriented to the interior of the membrane. o with hydrophobic tails oriented at the surface of the membrane. Click if you would like to Show Work for this question: Open Show Work LINK TO TEXT x Your answer is incorrect. Try again. A protein moves an amino acid across a membrane...
xProteins Quiz x ipids Quiz x Lipids Quiz t/view do?attempt- 1&context 0a4ce60a0a0001dc4786cd79dbacf795 Question1 Select one answer Where do peptide bonds form? A. Between adjacent carboxyl groups on amino acids. B. Between amino acids of two different protein chains. C. Between the carboxyl group of one amino acid and the amino group of another amino o points acid. D. Between adjacent amino groups on amino acids. Question2 Select one answer The following structure is the amino acid glutamic acid. Four atoms...
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