Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
|
how do you measure the activity on an enzyme
|
rate of loss of substrate over time
increase of product over time proportionality |
|
|
what are three non protein components of enzymes that can play key roles in reactions
|
coenzymes
prosthetic groups metal ions |
|
|
what is the difference between a coenzyme and prosthetic group
|
prosthetic groups are more tightly bound
|
|
|
what is a holoenzyme
|
apo + co
|
|
|
name some important metal ions we learned about
|
iorn
mg co zn mn mb copper |
|
|
A ______ reduction in activation energy results in a huge increase in the reaction rate
|
SMALL!
|
|
|
how do enzymes do the amazing things that they do
|
form active site
position aa R groups and cofactors or prosthetic groups at appropriate positions to aid in catalysis |
|
what's going on here?
|
Mg2+ is positively charged and simply aligns the ATP where it needs to be in the active site and catalyzes the reaction!
|
|
|
T or F.
Enzymes alter the final equilibrium ratio of substrates adn products. |
FALSE. Enzymes can speed up the rate of reaching equilibrium but does not change the ratios whatsoever
|
|
|
T or F. Enzymes act by lowering the activation energy of a reaction
|
True
|
|
|
Can enzymes determine the direction in which a reaction will proceed?
|
No!
|
|
|
T or F.
Enzymes alter the final equilibrium ratio of substrates adn products. |
FALSE. Enzymes can speed up the rate of reaching equilibrium but does not change the ratios whatsoever
|
|
|
______ have an active site that positions aa R groups in the proper position for catalysuis
|
enzymes
|
|
|
T or F. Enzymes act by lowering the activation energy of a reaction
|
True
|
|
|
Can enzymes determine the direction in which a reaction will proceed?
|
No!
|
|
|
______ have an active site that positions aa R groups in the proper position for catalysuis
|
enzymes
|
