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Question 1 1 pts Which of the following is the most common property of membrane lipids?...
NH HO HO Man Protein HO HO- Man or What type of membrane protein is shown...
NH HO HO Man Protein HO HO- Man or What type of membrane protein is shown below? Glycoprotein Man HO- HNo HO OR OH OM o0 wtracedular cell membrane eytesel Integral membrane protein GPI-anchored protein Peripheral membrane protein membrane proteins are bound primarily by electrostatic and hydrogen-bond interactions with the head groups of lipids. Peripheral membrane protein O Integral membrane protein GPI-anchored protein An antiporter and a symporter are examples of: passive diffusion Osecondary active transport O primary active transporters...
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
Question 24 Which of the following categories of membrane proteins is most likely to have restricted...
Question 24 Which of the following categories of membrane proteins is most likely to have restricted lateral mobility in a membrane? enzyme transporter O anchor O receptor all are restricted Question 5 New membrane synthesis occurs by spontaneous aggregation of free phospholipids into a new bilayer incorporation of phospholipids into one face of a preexisting membrane and their specific redistribution by enzymes like flippases incorporation of phospholipids into both faces of a preexisting membrane at the same time formation of...
A. B. C. D. E. F. Thank you receptors induce activation of adenlyate cyclase, which creates...
A. B. C. D. E. F. Thank you
receptors induce activation of adenlyate cyclase, which creates the second messenger(s) O G-Protein Coupled, CAMP O Tyrosine Kinase, CAMP OTyrosine Kinase, IP3 and DAG G-Protein Coupled, IP3 and DAG Which of the following is most likely to be activated by a small hydrophobic signal? OIntracellular receptor Receptor Tyrosine Kinase O G-Protein Coupled Receptor Ligand-Gated lon Channel Which of the following types of receptors require dimerization for activation? (Select any/all that apply) OLigand-gated...
Question 1 1 pts Which of the following must be true of integral membrane transport proteins...
Question 1 1 pts Which of the following must be true of integral membrane transport proteins in prokaryotes? O They are composed of more than one protein They require ATP or another high-energy molecule They use proton-motive force for transport They are ABC transport systems They are amphipathic Question 2 1 pts DNA hybridization techniques, such as FISH, require the melting and re-annealing of DNA to its original form. What chemical feature of DNA allows for this to occur? Planarity...
Which of the following would produce the most fluid lipid bilayer? O phospholipids with tails of...
Which of the following would produce the most fluid lipid bilayer? O phospholipids with tails of 26 carbon atoms and two double bonds O phospholipids with fully saturated tails of 20 carbon atoms O large amounts of cholesterol O phospholipids with tails of 20 carbon atoms and two double bonds o phospholipids with fully saturated tails of 24 carbon atoms Which of the following can influence the rate at which a molecule will move across a lipid bilayer? (Check all...
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...
which movement of membrane phospholipids in slowest? lateral diffusion D Question 3 1 pts Which movement...
which movement of membrane phospholipids in slowest? lateral
diffusion
D Question 3 1 pts Which movement of membrane phospholipids in SLOWEST? O lateral diffusion O scramblase-mediated movement O transbilayer diffusion flip-floppase catalyzed movement D | Question 4 1 pts
QUESTION 25 Lipids have been shown to move in the membrane. Which statement most accurately describes...
QUESTION 25 Lipids have been shown to move in the membrane. Which statement most accurately describes this movement? Lateral movement of lipids within the same leaflet of the membrane occurs, but is less common, and flip-flop of lipids to the opposite leaflet of the membrane is common Both lateral movement of lipids within the same leaflet of the membrane and flip-flop of lipids to the opposite leaflet of the membrane occur commonly. Lateral movement of lipids within the same leaflet...
21. Which property has not been observed for membrane proteins? a. energy storage b. transport of...
21. Which property has not been observed for membrane proteins? a. energy storage b. transport of substances into and out of the cell catalysis (enzymatic activity) acting as a receptor c. d. 22. In the fluid mosaic model of membrane structure the proteins are specifically bonded to the lipids b. a. the proteins "float" in the lipid bilayer the proteins are sandwiched between the lipid molecules c. d. the lipids are sandwiched between the protein molecules 23. All steroids contain...
NH HO HO Man Protein HO HO- Man or What type of membrane protein is shown below? Glycoprotein Man HO- HNo HO OR OH OM o0 wtracedular cell membrane eytesel Integral membrane protein GPI-anchored protein Peripheral membrane protein membrane proteins are bound primarily by electrostatic and hydrogen-bond interactions with the head groups of lipids. Peripheral membrane protein O Integral membrane protein GPI-anchored protein An antiporter and a symporter are examples of: passive diffusion Osecondary active transport O primary active transporters...
Question 24 Which of the following categories of membrane proteins is most likely to have restricted lateral mobility in a membrane? enzyme transporter O anchor O receptor all are restricted Question 5 New membrane synthesis occurs by spontaneous aggregation of free phospholipids into a new bilayer incorporation of phospholipids into one face of a preexisting membrane and their specific redistribution by enzymes like flippases incorporation of phospholipids into both faces of a preexisting membrane at the same time formation of...
A. B. C. D. E. F. Thank you
receptors induce activation of adenlyate cyclase, which creates the second messenger(s) O G-Protein Coupled, CAMP O Tyrosine Kinase, CAMP OTyrosine Kinase, IP3 and DAG G-Protein Coupled, IP3 and DAG Which of the following is most likely to be activated by a small hydrophobic signal? OIntracellular receptor Receptor Tyrosine Kinase O G-Protein Coupled Receptor Ligand-Gated lon Channel Which of the following types of receptors require dimerization for activation? (Select any/all that apply) OLigand-gated...
Question 1 1 pts Which of the following must be true of integral membrane transport proteins in prokaryotes? O They are composed of more than one protein They require ATP or another high-energy molecule They use proton-motive force for transport They are ABC transport systems They are amphipathic Question 2 1 pts DNA hybridization techniques, such as FISH, require the melting and re-annealing of DNA to its original form. What chemical feature of DNA allows for this to occur? Planarity...
Which of the following would produce the most fluid lipid bilayer? O phospholipids with tails of 26 carbon atoms and two double bonds O phospholipids with fully saturated tails of 20 carbon atoms O large amounts of cholesterol O phospholipids with tails of 20 carbon atoms and two double bonds o phospholipids with fully saturated tails of 24 carbon atoms Which of the following can influence the rate at which a molecule will move across a lipid bilayer? (Check all...
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...
which movement of membrane phospholipids in slowest? lateral
diffusion
D Question 3 1 pts Which movement of membrane phospholipids in SLOWEST? O lateral diffusion O scramblase-mediated movement O transbilayer diffusion flip-floppase catalyzed movement D | Question 4 1 pts
QUESTION 25 Lipids have been shown to move in the membrane. Which statement most accurately describes this movement? Lateral movement of lipids within the same leaflet of the membrane occurs, but is less common, and flip-flop of lipids to the opposite leaflet of the membrane is common Both lateral movement of lipids within the same leaflet of the membrane and flip-flop of lipids to the opposite leaflet of the membrane occur commonly. Lateral movement of lipids within the same leaflet...
21. Which property has not been observed for membrane proteins? a. energy storage b. transport of substances into and out of the cell catalysis (enzymatic activity) acting as a receptor c. d. 22. In the fluid mosaic model of membrane structure the proteins are specifically bonded to the lipids b. a. the proteins "float" in the lipid bilayer the proteins are sandwiched between the lipid molecules c. d. the lipids are sandwiched between the protein molecules 23. All steroids contain...
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