Microbiology Unit 2 Test 1

21 Questions | By Colleennicole | Last updated: Mar 22, 2022 | Total Attempts: 131

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Enzymes

Questions and Answers

1.

What is the energy of activation?
2.

_____________ is the total of all _______ reactions and ________ workings occurring in a cell.
3.

Two types of chemical reactions?
- A.
  
  Anabolism
- B.
  
  Fermentation
- C.
  
  Catabolism
4.

Biosynthesis, building complex molecules from simple ones. Requires ATP.
5.

Catabolism is __________ breaking down complex molecules into simple ones, _____ ATP.
6.

Enzymes are biological ________ that increase the rate of a chemical reaction by lowering the _________ of _________.
7.

Most enzymes are composed of ______ and may require _________.
8.

Act as ___________ catalysts to speed up the rate of _________ reactions.
9.

Lowers _______ _________ required for chemical reaction to proceed.
10.

Enable _________ reactions to proceed at a speed compatible with life.
11.

Have unique ___________.
12.

Provide an active site for target molecules called ________.
13.

Enzymes are ________ than substrates.
- A.
  
  Smaller
- B.
  
  Larger
14.

Enzymes associate closely with substrates and become integrated in the reaction's products.
- A.
  
  True
- B.
  
  False
15.

Enzymes are not used up or permanently changed by the reaction
- A.
  
  True
- B.
  
  False
16.

Enzymes can be __________ and therefore function in very _____ concentrations.
17.

Enzymes are greatly effected by _______ and ____.
18.

_____ site is the site for binding.
19.

_______ enzymes consist of only proteins.
20.

Example of cofactors
- A.
  
  Iron
- B.
  
  Protein
- C.
  
  Copper
- D.
  
  Magnesium
21.

Hexokinase transfers _______ to ______.

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