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QueSLIUI 13 3 pts For most cells in physiological conditions, the extracellular concentration of Ca2+ is...
Name BIOL 4360 Assignment/Quiz 3 (15 pts) The following data were obtained from the cells of...
Name BIOL 4360 Assignment/Quiz 3 (15 pts) The following data were obtained from the cells of a rat. ME Ion Intracellular Conc Extracellular Cone Non-excitable cells Excitable cells (mM) 100 10 20 (hepatocytes)(neurons) (mM) 10 100 200 Na CI 0 0 0.1 0.5 1. Calculate the membrane potential. SHOW ALL CALCULATIONS (2 pts). 2·This membrane potential is the electrical force that develops on the membrane to counter the movement of which ion down its concentration gradient (2 pts)? 3. How...
33) Which of the following is most likely true of a protein that cotransports glucose and...
33) Which of the following is most likely true of a protein that cotransports glucose and sodium ions into the intestinal cells of an animal? A) Sodium and glucose bind to the same site on the cotransporter. B) Transport of glucose against its concentration gradient provides energy for uptake of sodium ions against the electrochemical gradient. C) Sodium ions can be transported whether or not glucose is present outside the cell, but glucose transport requires cotransport of sodium ions. D)...
1. Animal cells have a Na,K pump that couples the energy of ATP hydrolysis to transport 3 Na ions out of the cell and 2 K ions into the cell. Inside astrocytes, the concentration of Na is 20 mM and th...
1. Animal cells have a Na,K pump that couples the energy of ATP hydrolysis to transport 3 Na ions out of the cell and 2 K ions into the cell. Inside astrocytes, the concentration of Na is 20 mM and the concentration of K is 130 mM. The extracellular concentrations of Na and K are 145 mM and 5 mM, respectively. Calculate the energy required for the transport of Na and K , with this stoichiometry; assume that the cell...
Discard the answers I chose Match the following scenarios with the most specific type of transport...
Discard the answers I chose
Match the following scenarios with the most specific type of transport used. Some choices may be used more than once. A A white blood cell enguits a bacterial cell A A paramecium swims close to some debris, wraps its membrane around the debris, and pulsit inside, creating a food Vacuole D. An amoeba wraps its cell membrane around a region of dissolved nutrients in water and pulls it inward, making a small vacuole A Phagocytosis...
1. secreted by postganglionic sympathetic neurons at Islet alpha cells 2. extracellular binding site for (1.)...
1. secreted by postganglionic sympathetic neurons at Islet alpha cells 2. extracellular binding site for (1.) 3. type of membrane protein defined by the topology of (2.) 4. type of (2.) binding site based on its ultimate function 5. found bound to the intracellular face of UN-liganded (2.) 6. immediate consequence of (2.)’s GEF action on (5.) 7. what (6.) directly activates 8. product of (7.) 9. what (8.) directly binds to 10. what (9.) inhibits with its …RRGAI… peptide...
1. You are studying an integral plasma membrane protein named LINKER that can interact with the...
1. You are studying an integral plasma membrane protein named LINKER that can interact with the cytoskeletal molecule spectrin to form complex matrices across the surface of membranes. To begin to understand how the LINKER protein population responds to spectrin availability, you perform some fluorescence recovery after photobleaching (FRAP) experiments using a LINKER-GFP fusion protein. The results of a FRAP experiment with the wildtype version of LINKER in which 50% of the protein population is bound to spectrin is shown...
PLEASE ANSWER ALL PARTS. THANK YOU! 11. (13 pts) Electron transfer Electron transfer translocates protons from...
PLEASE ANSWER ALL PARTS. THANK YOU!
11. (13 pts) Electron transfer Electron transfer translocates protons from the mitochondrial matrix to the external medium, establishing a pH gradient across the inner membrane (outside more acidic than inside). The tendency of protons to diffuse back into the matrix is the driving force for ATP synthesis by ATP synthase. During oxidative phosphorylation by a suspension of mitochondria in a medium of pH 6.9, the pH of the matrix has been measured as 7.7....
QUESTION 9 In skeletal muscle under anaerobic conditions, pyruvate is further reduced to lactate. What is...
QUESTION 9 In skeletal muscle under anaerobic conditions, pyruvate is further reduced to lactate. What is the net equation for the payoff phase of glycolysis? glyceraldehyde-3-phosphate + 2 ATP + Pi ---> lactone + NAD+ glucose+2ATP - 2Glyceraldehyde-3-Phosphate + 2ADP + 2H+ 2glyceraldehyde-3-phosphate + 4ADP + 2Pi >2Lactate + 4ATP None of the above QUESTION 14 What is the ratio of carbon-bound hydrogens to carbon of glucose? 6/6 776 12/6 6/7 QUESTION 29 Why would it be advantageous to plants...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form water Reduced to form CO2 Oxidized to form CO2 Which of the following describes the equation: FAD + XH2 à FADH2 + X. FAD is reduced to FADH2 It is a coupled reduction – oxidation reaction XH2 is oxidized to X All of the above Which of the following is FALSE about glycolysis? The initial steps of glycolysis requires energy derived from the splitting...
Question 58 1 pts Name the tick borne disease caused by Ricketsii that acutely features a...
Question 58 1 pts Name the tick borne disease caused by Ricketsii that acutely features a speckled rash on the wrists and ankles and may lead to long term damage due to intracellular pathogenic bacteria destroying epithelial cells of the blood vessels Name the tick borne disease caused by Ricketsii that acutely features a speckled rash on the wrists and ankles and may lead to long term damage due to intracellular pathogenic bacteria destroying epithelial cells of the blood vessels...
Name BIOL 4360 Assignment/Quiz 3 (15 pts) The following data were obtained from the cells of a rat. ME Ion Intracellular Conc Extracellular Cone Non-excitable cells Excitable cells (mM) 100 10 20 (hepatocytes)(neurons) (mM) 10 100 200 Na CI 0 0 0.1 0.5 1. Calculate the membrane potential. SHOW ALL CALCULATIONS (2 pts). 2·This membrane potential is the electrical force that develops on the membrane to counter the movement of which ion down its concentration gradient (2 pts)? 3. How...
33) Which of the following is most likely true of a protein that cotransports glucose and sodium ions into the intestinal cells of an animal? A) Sodium and glucose bind to the same site on the cotransporter. B) Transport of glucose against its concentration gradient provides energy for uptake of sodium ions against the electrochemical gradient. C) Sodium ions can be transported whether or not glucose is present outside the cell, but glucose transport requires cotransport of sodium ions. D)...
Discard the answers I chose
Match the following scenarios with the most specific type of transport used. Some choices may be used more than once. A A white blood cell enguits a bacterial cell A A paramecium swims close to some debris, wraps its membrane around the debris, and pulsit inside, creating a food Vacuole D. An amoeba wraps its cell membrane around a region of dissolved nutrients in water and pulls it inward, making a small vacuole A Phagocytosis...
1. You are studying an integral plasma membrane protein named LINKER that can interact with the cytoskeletal molecule spectrin to form complex matrices across the surface of membranes. To begin to understand how the LINKER protein population responds to spectrin availability, you perform some fluorescence recovery after photobleaching (FRAP) experiments using a LINKER-GFP fusion protein. The results of a FRAP experiment with the wildtype version of LINKER in which 50% of the protein population is bound to spectrin is shown...
PLEASE ANSWER ALL PARTS. THANK YOU!
11. (13 pts) Electron transfer Electron transfer translocates protons from the mitochondrial matrix to the external medium, establishing a pH gradient across the inner membrane (outside more acidic than inside). The tendency of protons to diffuse back into the matrix is the driving force for ATP synthesis by ATP synthase. During oxidative phosphorylation by a suspension of mitochondria in a medium of pH 6.9, the pH of the matrix has been measured as 7.7....
QUESTION 9 In skeletal muscle under anaerobic conditions, pyruvate is further reduced to lactate. What is the net equation for the payoff phase of glycolysis? glyceraldehyde-3-phosphate + 2 ATP + Pi ---> lactone + NAD+ glucose+2ATP - 2Glyceraldehyde-3-Phosphate + 2ADP + 2H+ 2glyceraldehyde-3-phosphate + 4ADP + 2Pi >2Lactate + 4ATP None of the above QUESTION 14 What is the ratio of carbon-bound hydrogens to carbon of glucose? 6/6 776 12/6 6/7 QUESTION 29 Why would it be advantageous to plants...
Question 58 1 pts Name the tick borne disease caused by Ricketsii that acutely features a speckled rash on the wrists and ankles and may lead to long term damage due to intracellular pathogenic bacteria destroying epithelial cells of the blood vessels Name the tick borne disease caused by Ricketsii that acutely features a speckled rash on the wrists and ankles and may lead to long term damage due to intracellular pathogenic bacteria destroying epithelial cells of the blood vessels...
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