which of these statements is not true of dynamic equilibrium? as may solvent molecules move across...
which of these statements is not true of dynamic equilibrium?
as may solvent molecules move across the membrane in one direction as in the other
allrandom motion of molecules ceases once equilibrium is reached
all gradients have ceased to exist
net diffusion is no longer occuring
Homework Answers
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which of these statements is not true of dynamic
equilibrium?
as may solvent molecules move across...
8. The movement of protons out of the mitochondrial matrix establishes an electrochemical H gradient across...
8. The movement of protons out of the mitochondrial matrix establishes an electrochemical H gradient across the inner mitochondrial membrane. The electrochemical potential of this gradient is harnessed to synthesize ATP. This is known as the (A) Hydrophobic effect IqChemiosmotic theory (B) Acid catalysis (0) Michaelis-Menten mechanism _9. Which of the following statements about mitochondria and their lon and metabolite transporters is FALSE? (A) Controlled impermeability of the inner mitochondrial membrane to most ions and metabolites allows for the generation...
Lo 10: Electrochemical Gradient The difference in voltage across the membrane is called the __________________________________. The...
Lo 10: Electrochemical Gradient The difference in voltage across the membrane is called the __________________________________. The inside of a normal cell is ___________________ (+/-); while the outside is ___________(+/-). The resting membrane potential of a neuron is ___________mV. Diagram the relative ratios of Ca++, Na+ and K+ in a cell under resting conditions. Draw an arrow for each of the molecules indicating which direction would be passive transport (into or out of the cell). For each of the following sentences, fill in...
. For each of the 3 situations below, use an arrow to indicate the net movement...
. For each of the 3 situations below, use an arrow to indicate the net movement of water into or out of the cell through the semipermeable plasma membrane (i.e. osmosis). (Assume that the sugar molecules cannot pass through the plasma membrane in each case.) 1% sugar (inside a circule) 3% sugar (inside a circule) 1% sugar (inside a circule) 5% sugar 1% sugar 1% sugar 3. In each of the drawings above, indicate if the inside of the cell...
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 one of the following statements is true? O A catalyst alters the equilibrium constant of...
Which one of the following statements is true? O A catalyst alters the equilibrium constant of a reaction and is neither a product nor a reactant in the overall equation. In order for a reaction to occur, product and reactant molecules must collide with each other. The transition state is a short-lived, high energy state, intermediate between products and reactants. In reactions that are first order in one reactant and first order in another, the slow step always involves a...
FILL THE BLANK The membranes of fishes that live in extreme cold have a high proportion...
FILL THE BLANK The membranes of fishes that live in extreme cold have a high proportion of _________________ hydrocarbon tails, enabling them to stay fluid.For example, cold-adapted organisms such as winter wheat increase the percentage of _________________ phospholipids in their membranes in the autumn to prevent the membranes from solidifying during winter.There are two major populations of membrane proteins: ___________ and _____________.Integral proteins penetrate the hydrophobic interior of the lipid bilayer, usually completely spanning the membrane as ________________ proteins.________________ proteins...
17. Which of the following statements is true? ado on dai Jal A) Achiral molecules usually...
17. Which of the following statements is true? ado on dai Jal A) Achiral molecules usually contain a plane of symmetry B) With one tetrahedral stereogenic center, a molecule may or may not be chiral. C) With two or more stereogenic centers, a molecule is always chiral. D) Chiral molecules usually contain a plane of symmetry 18. Which of the following is the correct definition for a pair of enantiomers? A) A pair of stereoisomers that have a plane of...
_____membranes proteins are associated with the bilayer through interactions with other membrane component on the surface...
_____membranes proteins are associated with the bilayer through interactions with other membrane component on the surface of the membrane. Net movement of particles from a region where they are more concentrated to a region where they are law concentrated is called Diffusion of water through a selectively permeable membrane down its own concentration gradient It called A solution with an equivalent concentration of water and hence the tame osmotic pressure as the fluid inside the cell is said to be...
Help pls !! The voltage across a circuit (A) can be increased if resistors are added...
Help pls !!
The voltage across a circuit (A) can be increased if resistors are added to circuit in series (B) can be increased if resistorsct i sries (D) is nell (C) can be decreased if resistors are are added to a circuit in increased nor decreased by adding resistors to bulb burns out, other continues to give off light. These light bulbs are connected in (A) se the (B) parallel (C) short circuit (D) there is not enough information...
Q21. Which one of the following statements about the ductility of metals is TRUE? A High ductility occurs in brittle materials B Ductility is the amount of deformation at the 0.2% proof stress C Duct...
Q21. Which one of the following statements about the ductility of metals is TRUE? A High ductility occurs in brittle materials B Ductility is the amount of deformation at the 0.2% proof stress C Ductility can be measured as % reduction in area from broken tensile samples D Ductility is deformation in the elastic region E Ductility is the change between upper and lower yield point in steels Q22. Which one of the following statements is TRUE about Charpy impact...
8. The movement of protons out of the mitochondrial matrix establishes an electrochemical H gradient across the inner mitochondrial membrane. The electrochemical potential of this gradient is harnessed to synthesize ATP. This is known as the (A) Hydrophobic effect IqChemiosmotic theory (B) Acid catalysis (0) Michaelis-Menten mechanism _9. Which of the following statements about mitochondria and their lon and metabolite transporters is FALSE? (A) Controlled impermeability of the inner mitochondrial membrane to most ions and metabolites allows for the generation...
Which one of the following statements is true? O A catalyst alters the equilibrium constant of a reaction and is neither a product nor a reactant in the overall equation. In order for a reaction to occur, product and reactant molecules must collide with each other. The transition state is a short-lived, high energy state, intermediate between products and reactants. In reactions that are first order in one reactant and first order in another, the slow step always involves a...
17. Which of the following statements is true? ado on dai Jal A) Achiral molecules usually contain a plane of symmetry B) With one tetrahedral stereogenic center, a molecule may or may not be chiral. C) With two or more stereogenic centers, a molecule is always chiral. D) Chiral molecules usually contain a plane of symmetry 18. Which of the following is the correct definition for a pair of enantiomers? A) A pair of stereoisomers that have a plane of...
_____membranes proteins are associated with the bilayer through interactions with other membrane component on the surface of the membrane. Net movement of particles from a region where they are more concentrated to a region where they are law concentrated is called Diffusion of water through a selectively permeable membrane down its own concentration gradient It called A solution with an equivalent concentration of water and hence the tame osmotic pressure as the fluid inside the cell is said to be...
Help pls !!
The voltage across a circuit (A) can be increased if resistors are added to circuit in series (B) can be increased if resistorsct i sries (D) is nell (C) can be decreased if resistors are are added to a circuit in increased nor decreased by adding resistors to bulb burns out, other continues to give off light. These light bulbs are connected in (A) se the (B) parallel (C) short circuit (D) there is not enough information...
Q21. Which one of the following statements about the ductility of metals is TRUE? A High ductility occurs in brittle materials B Ductility is the amount of deformation at the 0.2% proof stress C Ductility can be measured as % reduction in area from broken tensile samples D Ductility is deformation in the elastic region E Ductility is the change between upper and lower yield point in steels Q22. Which one of the following statements is TRUE about Charpy impact...
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