Enzymbiology Flashcards

1
Q

What are enzymes,, What are some enzymes that are also RNA? What are some co-factors .

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2
Q

What are the 6 types of enzymes ? Just names

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3
Q

What is the role of oxidoredutases and Transferases ?

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4
Q

What is the role Hydrolase and lyases ?

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5
Q

What is the role of isomerase ? and ligases ?

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6
Q

What is the difference between transititon state complex and enzyme-substrate complex ?

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7
Q

What are the substrate binding models ?

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8
Q

What does an enzyme do to the activation barrier? How about free energy of reactions and products ? Does it change equilibrium ?

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9
Q

What do enzymes organize reactive groups ? What happens to uncatalysed bimolecular reactions ? Uncatalyzed unimolecular reactions ? How about catalysed reactions ?

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10
Q

What is the difference of the free energy of activation between catalyist and non catalyst ?

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11
Q

Draw the energy changes that occur during a reaction between a substrate and enzyme .

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12
Q

Why is there a dip ?

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Bonds are beign formed, which is exothermic, that the energy released is used to decrease the energy of activation

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13
Q

What is the transition state?

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When half of the reactant got converted

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14
Q
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15
Q

What are transition state inhibitors? What are transition state analogs ? What binds more tightly between the anaylog and the real subtrate ?

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16
Q

What is the role of pencicillin as a transition state inhibitors ? What does it interact with ?

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17
Q

Explain how allopurinol is an example of a transition state inhibitor ?

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18
Q

In the mechelis menton grapth, enzymes show what type of curve? While alloteric enzymes show what ??

What is the formula for V?

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19
Q

Where is Vmax, and KM ? What is the formula ?

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20
Q

What is known as michelis complex ?

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21
Q

Vo=

When the substrate is higher then the km, is in what power ? What does it mean with VMAX ? How about when substrate is less ?

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intial rate

22
Q

What does it mena when the Km is greater than another km in terms of affinity ?

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23
Q

In a lineweaver burk equation what is it ? How are the x axis and y axis represented ? What is the slope ?

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24
Q

What is the formula for a single substrate ? v=

What is Kcat ? What is Km ?

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25
Q

What are enzymes inhibitors ? What are irreversible inhibitors when are they used ?, and reversibile inhibitors ? What is the role of reversible inhibitors ?

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26
Q

name all the reversible inhibitors

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27
Q

What changes in a competitive inhibior between the km and Vmax ?

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28
Q

What is a non-competiive inhibitor, where does it bind ?

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29
Q

What changes between km and Vmax in a non-competitive inhibitor ?

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30
Q

What changes in a non-competiitve inhibitor

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31
Q

Draw the mechanism by which uncompetitive inhibition occurs .

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32
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33
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34
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35
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36
Q

What is allosteric regulation ? What type of ligand ? How is it regulated ?What type of modification is it ? is it reversible ? What are the modifications ? What is proteolysis role ?

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37
Q

What is ment by allosteric enzymes having copertivity ?

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38
Q
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39
Q

What is a positive allosteric enzymes and negative ? Why not confuse with line weaver

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40
Q

How does the VM and km compare in allosteric enzymes that are increase or decrease ?

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41
Q

Phosphorylation is a type of ? What does it do ? Can it be reversed ?

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42
Q

How do tissue regulate how much a certain protein they are making ?

What is enzyme synthesis ? What is protein degradation ?

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43
Q
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