Module 2 exam portage learning
microbio 171 BIOD Questions And
Answers
True or false: metabolism is a controlled set of biochemical reactions that occur in living organisms in
order to maintain life. - Answer - True
True or false: enzymes slow down chemical reactions to conserve energy - Answer - false, they speed up
(catalyze) chemical reactions
The term for metal ions that assist enzymes during the catalysis reaction - Answer - cofactors
What is catabolism? - Answer - The process of breaking down larger molecules into useful energy
sources
Upon cellular injury, which metabolic process is involved during the growth and repair phases of the cell.
- Answer - anabolism
An organism that obtains its energy (derives ATP) from photons of light is called a __________________
- Answer - phototrophic microorganism
An organism that derives its energy by removing electrons from elemental sulfur would be classified as a
____________ - Answer - Lithotroph
Describe the energy transfer process relative to both ADP and ATP - Answer - ATP has the energy
(phosphate group) to donate, and ADP can accept energy in the form of a phosphate group. Thus, ATP
can be dephosphorylated (ATP-----> ADP + Pi), while ADP can be dephosphorylated into ATP (ADP + Pi ---
--> ATP)
microbio 171 BIOD Questions And
Answers
True or false: metabolism is a controlled set of biochemical reactions that occur in living organisms in
order to maintain life. - Answer - True
True or false: enzymes slow down chemical reactions to conserve energy - Answer - false, they speed up
(catalyze) chemical reactions
The term for metal ions that assist enzymes during the catalysis reaction - Answer - cofactors
What is catabolism? - Answer - The process of breaking down larger molecules into useful energy
sources
Upon cellular injury, which metabolic process is involved during the growth and repair phases of the cell.
- Answer - anabolism
An organism that obtains its energy (derives ATP) from photons of light is called a __________________
- Answer - phototrophic microorganism
An organism that derives its energy by removing electrons from elemental sulfur would be classified as a
____________ - Answer - Lithotroph
Describe the energy transfer process relative to both ADP and ATP - Answer - ATP has the energy
(phosphate group) to donate, and ADP can accept energy in the form of a phosphate group. Thus, ATP
can be dephosphorylated (ATP-----> ADP + Pi), while ADP can be dephosphorylated into ATP (ADP + Pi ---
--> ATP)
