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Microbial Meatabolism Part 2 Chapter 5
Test Description: Metabolism
Instructions: Answer all questions to get your test result.
1) Enzymes are named for what?
A
The name of minerals
B
none of these
C
The substrate and tend to end in (ase) ex: sucrose-sucrase
D
The names of vitamin
2) How does temperature affects an enzyme?
A
none of these
B
both previous answers
C
High temps cause denaturization
D
rate of enzyme-catalyzed reaction increase with an increase in temp up to its optimal temp
3) How does ph affect an enzyme?
A
works best at optimal ph: acidic ph causes denurturization
B
there is no ph enviroment needed
C
none of these
D
acidity improves it
4) What are the functions of inhibitors and activators?
A
both of the previous answers
B
Certain poisens combine with enzymes and prevent them from functioning
C
none of these
D
cells stop functioning and die
5) What are the 3 types of activators and inhibitors?
A
none of these
B
two top answers
C
activators
D
competitive and noncompetitve inhibitors
6) What is a competitive inhibitor?
A
none of these
B
bind to an enzyme at allosteric site, changing shape of the active site so substrate cant bind
C
bind to allosteric sites and keep enzymes in their active configuration
D
bind to an enzyme blocking its active site
7) What are noncompetitive (allosteric) inhibitors?
A
bind to allosteric sites and keep enzymes in their active configuration
B
All of these
C
bind to enzyme at allosteric site changing shape of active site so substrate cannot bind
D
bind to an enzyme blocking its active site
8) Define activators
A
bind to enzyme blocking its active site
B
denurturization
C
none of these
D
bind to allosteric sites and keeps enzymes in their active configuration
9) All proteins =
A
none of these
B
simple enzymes
C
holoenzymes
D
no proteins
10) Organic and Inorganic can also be called?
A
substances
B
Vitamins and minerals
C
alive and dead
D
none of these are correct
*select an answer for all questions
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