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