Homework Answers
See when substrate concentration is low then rate of reaction is dependent on substrate concentration and if substrate concentration is high then rate of reaction becomes independent of substrate concentration .
Thus when substrate concentration is low , then order of reaction will be one (first order) and depends directly on substrate concentration and when substrate concentration is high , then reaction will be of zero order (don't have any effect of substrate concentration , independent of substrate) .
Thus option (C) first;zero , is the correct answer.
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If the substrate concentration is varied with a fixed concentration of enzyme, it is observed that...
taken 1 hour 1 min If the substrate concentration is varied with a fixed concentration of...
taken 1 hour 1 min If the substrate concentration is varied with a fixed concentration of enzyme, it is observed that allow substrate concentrationer overall order while at high substrate concentrations, the reaction will be overall order 00 Select one: a. first; second first; third order c. first; zero d. second: second e. second: pseudo first order Which statement is false about the heme group? of 1 50 estion Select one: a. If exposed to air, a the heme iron...
What kind of kinetics is observed in an enzymatic reaction, under conditions where the substrate concentration...
What kind of kinetics is observed in an enzymatic reaction, under conditions where the substrate concentration is much higher with respect to KM ([S] >> KM)? Assume that a monomeric and non-allosteric enzyme is considered. A. Cooperative B. First Order C. Zero Order D. The systerm is at equilibrium and no reaction occures E. Second Order
Vmax of an enzyme-catalyzed reaction is A. the rate observed when the enzyme active sites are...
Vmax of an enzyme-catalyzed reaction is A. the rate observed when the enzyme active sites are saturated with substrate B. independent of the amount of enzyme present C. the rate observed at the highest substrate concentration that can be experimentally obtained D. the initial rate observed at very low substrate concentrations
What is substrate concentration, expressed as a multiple of Km, when an enzyme reaction is observed...
What is substrate concentration, expressed as a multiple of Km, when an enzyme reaction is observed to have an initial rate Vo = 0.75 Vmax. Select one: O a. [S] = 0.33 x km O b. [S] = 0.25 km O c. [S] = 0.75 x Km O d. [S] = 0.3 x km O e. [S] = 0.5 x km Check Next page ime Jump to...
Review your knowledge of how enzyme activity is affected by substrate concentration by selecting the correct...
Review your knowledge of how enzyme activity is affected by substrate concentration by selecting the correct statements concerning enzyme activity at low substrate concentrations. Contact between enzyme and substrate is rare Velocity of the reaction increases Enzyme makes product rapidly Enzyme makes product slowly Enzyme is saturated with substrate
The rate of an enzyme-catalyzed reaction initially increases with an increase in the substrate concentration, but...
The rate of an enzyme-catalyzed reaction initially increases with an increase in the substrate concentration, but eventually reaches a maximum value, even though the concentration of substrate continues to increase. Which of the following best explains why? O As substrate concentration increases, the substrates preferentially bind with each other instead of the active site of the enzyme, and no additional catalysis occurs. As substrate concentration increases, the active sites of all the enzyme molecules become occupied with substrate molecules, and...
2-In an enzyme-catalyzed reaction, the rate of the reaction depends on which of the following at...
2-In an enzyme-catalyzed reaction, the rate of the reaction depends on which of the following at very low substrate concentrations? Select one: Neither enzyme concentration nor substrate concentration Enzyme concentration but not substrate concentration Substrate concentration but not enzyme concentration Both substrate concentration and enzyme concentration
Enzyme Kinetics Lab Guide Table 2: Absorbance values per minute for varied substrate concentrations Time (min)...
Enzyme Kinetics Lab Guide Table 2: Absorbance values per minute for varied substrate concentrations Time (min) Tube A (0mM) Tube B (2.0mM) Tube C (5.0mM) Tube D (8.0mM) Tube E (12.0mM) Tube F (20.0mM) 0 0 0.012 0.066 0.066 0.076 0.191 1 0.011 0.045 0.128 0.128 0.164 0.200 2 0.017 0.096 0.190 0.190 0.219 0.241 3 0.009 0.122 0.234 0.234 0.294 0.313 Table 3. Absorbance values versus substrate concentration at a constant time (from Table 2) Concentration (mM) 0 mM...
The key factor that controls the initial rate of an enzyme catalysed reaction (Vo) is the...
The key factor that controls the initial rate of an enzyme catalysed reaction (Vo) is the concentration of the substrate of the reaction ([S]). In Damon's Michaelis-Menten experiment, the highest concentration of substrate used was 500 UM. What do you think will happen to the reaction velocity if higher concentrations of substrate were used? Select one: a. Vo will reach a plateau at higher (S) values O b. Vo will increase exponentially as (S) is increased O c. Vo will...
6 The graph shows the effect of substrate concentration on the rate of an enzyme- controlled...
6 The graph shows the effect of substrate concentration on the rate of an enzyme- controlled reaction. The enzyme concentration is constant. reaction rate Which statement about the graph is correct? A Between Wand X, the substrate concentration number of enzyme molecules is limiting. Between X and Y, the number of enzyme molecules is limiting. Between X and Y, the number of substrate molecules is limiting. Between X and Y, the product concentration remains the same. Thanh in the nammanni...
taken 1 hour 1 min If the substrate concentration is varied with a fixed concentration of enzyme, it is observed that allow substrate concentrationer overall order while at high substrate concentrations, the reaction will be overall order 00 Select one: a. first; second first; third order c. first; zero d. second: second e. second: pseudo first order Which statement is false about the heme group? of 1 50 estion Select one: a. If exposed to air, a the heme iron...
What is substrate concentration, expressed as a multiple of Km, when an enzyme reaction is observed to have an initial rate Vo = 0.75 Vmax. Select one: O a. [S] = 0.33 x km O b. [S] = 0.25 km O c. [S] = 0.75 x Km O d. [S] = 0.3 x km O e. [S] = 0.5 x km Check Next page ime Jump to...
Review your knowledge of how enzyme activity is affected by substrate concentration by selecting the correct statements concerning enzyme activity at low substrate concentrations. Contact between enzyme and substrate is rare Velocity of the reaction increases Enzyme makes product rapidly Enzyme makes product slowly Enzyme is saturated with substrate
The rate of an enzyme-catalyzed reaction initially increases with an increase in the substrate concentration, but eventually reaches a maximum value, even though the concentration of substrate continues to increase. Which of the following best explains why? O As substrate concentration increases, the substrates preferentially bind with each other instead of the active site of the enzyme, and no additional catalysis occurs. As substrate concentration increases, the active sites of all the enzyme molecules become occupied with substrate molecules, and...
The key factor that controls the initial rate of an enzyme catalysed reaction (Vo) is the concentration of the substrate of the reaction ([S]). In Damon's Michaelis-Menten experiment, the highest concentration of substrate used was 500 UM. What do you think will happen to the reaction velocity if higher concentrations of substrate were used? Select one: a. Vo will reach a plateau at higher (S) values O b. Vo will increase exponentially as (S) is increased O c. Vo will...
6 The graph shows the effect of substrate concentration on the rate of an enzyme- controlled reaction. The enzyme concentration is constant. reaction rate Which statement about the graph is correct? A Between Wand X, the substrate concentration number of enzyme molecules is limiting. Between X and Y, the number of enzyme molecules is limiting. Between X and Y, the number of substrate molecules is limiting. Between X and Y, the product concentration remains the same. Thanh in the nammanni...
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