Homework Answers
If the ATP molecule is used to transport ions and a protein is required then this type of transport is called Active transport. If two ions or molecules were associatedtogether , then this type of transport would be coupled active transport.
Facilitated diffusion is the type of transport which does not require ATP to transport molecules.
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You are studying a particular kind of Ca2+ transport protein in a purified system (the protein...
You are studying a particular kind of Ca2+ transport protein in a purified system (the protein...
You are studying a particular kind of Ca2+ transport protein in a purified system (the protein is the only transporter in the membrane). You find that if you add ATP to the interior of the membrane system, there is no change in the Ca?* concentration outside the cell. However, if you add an excess of Ca2+ to the interior of the cell, then you see an increase in the Ca2+ concentration outside the cell. What kind of transporter do you...
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...
2. How is ATP used in most cell processes? a. It binds to a substrate and...
2. How is ATP used in most cell processes? a. It binds to a substrate and provides energy when the phosphate group is released. b. indirectly, by providing electrons to an acceptor c. Hydrolysis of ATP is coupled to an endergonic reaction. d. It increases the efficiency of some key enzymes. e. none of the above 2. How is ATP used in most cell processes? a. It binds to a substrate and provides energy when the phosphate group is released....
please answer all three or none at all. Thank you. one transporter is Simultaneous transport of...
please answer all three or none at all. Thank you.
one transporter is Simultaneous transport of two molecules across the cell membrane in the same direction by called AV Question 9 (1 point) In carrier protein function kinetics, Km is the solute concentration at which the transport rate is half maximal True False Question 10 (1 point) Transmembrane movement of a substance up a concentration gradient requires facilitated diffusion True False
b) Consider the following scenario: You start an experiment with equal concentrations of sodium chloride in...
b) Consider the following scenario: You start an experiment with equal concentrations of sodium chloride in a small tank. You are interested in studying the nature of a transmembrane protein embedded in a lipid bilayer. You insert the membrane, with embedded protein, into the tank, creating two sides, with initially the same concentrations of a solute on both sides (side A and side B). You leave the experiment for several hours and when you return you find that the solutes...
You create an artificial vesicle containing a transport protein in its membrane. The transport protein uses...
You create an artificial vesicle containing a transport protein in its membrane. The transport protein uses ATP to pump one Mg2+ ion into the cell for every Na+ ion it pumps out. At the starting point of the experiment, the concentration of Mg2+, Na+, and ATP are the same inside and outside the vesicle. a) After 1 hour, which ion(s) will be at a higher concentration inside the vesicle? b) After 1 hour, which ion(s) will be...
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...
here would you expect to find a bedrophhobic amino acld like valine? hor of the folded...
here would you expect to find a bedrophhobic amino acld like valine? hor of the folded protein, away from water on the exterior surface of the protein, interacting with water C) in the interior of the folded protein, away from water, or in a tranomembrane portion interacting with lipid fatty acid chains D) in the transmembrane portion interacting with lipid fatty acid chains- 20) Which of the following are found in plant, animal, and bacterial cells? A) chloroplasts C) ribosomes...
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)...
Pu010 2. You are studying a bacterial protein, Pmp 7, that pumps one potassium (Kt) ion...
Pu010 2. You are studying a bacterial protein, Pmp 7, that pumps one potassium (Kt) ion into the cell for each calcium ion (Ca²+) that is moved out of the cell. Pmp 7 uses energy from light to pump these ions across the membrane. Experiment 1: You make an artificial membrane vesicle that has Pmp7 as the only protein on the membrane. Pmp 7 is orientated on this artificial membrane vesicle as it is oriented in a bacterial cell, and...
You are studying a particular kind of Ca2+ transport protein in a purified system (the protein is the only transporter in the membrane). You find that if you add ATP to the interior of the membrane system, there is no change in the Ca?* concentration outside the cell. However, if you add an excess of Ca2+ to the interior of the cell, then you see an increase in the Ca2+ concentration outside the cell. What kind of transporter do you...
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...
please answer all three or none at all. Thank you.
one transporter is Simultaneous transport of two molecules across the cell membrane in the same direction by called AV Question 9 (1 point) In carrier protein function kinetics, Km is the solute concentration at which the transport rate is half maximal True False Question 10 (1 point) Transmembrane movement of a substance up a concentration gradient requires facilitated diffusion True False
b) Consider the following scenario: You start an experiment with equal concentrations of sodium chloride in a small tank. You are interested in studying the nature of a transmembrane protein embedded in a lipid bilayer. You insert the membrane, with embedded protein, into the tank, creating two sides, with initially the same concentrations of a solute on both sides (side A and side B). You leave the experiment for several hours and when you return you find that the solutes...
here would you expect to find a bedrophhobic amino acld like valine? hor of the folded protein, away from water on the exterior surface of the protein, interacting with water C) in the interior of the folded protein, away from water, or in a tranomembrane portion interacting with lipid fatty acid chains D) in the transmembrane portion interacting with lipid fatty acid chains- 20) Which of the following are found in plant, animal, and bacterial cells? A) chloroplasts C) ribosomes...
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)...
Pu010 2. You are studying a bacterial protein, Pmp 7, that pumps one potassium (Kt) ion into the cell for each calcium ion (Ca²+) that is moved out of the cell. Pmp 7 uses energy from light to pump these ions across the membrane. Experiment 1: You make an artificial membrane vesicle that has Pmp7 as the only protein on the membrane. Pmp 7 is orientated on this artificial membrane vesicle as it is oriented in a bacterial cell, and...
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