Module 2 Exam Portage Learning
Microbio 171 BIOD
- True or false: metabolism is a controlled set of biochemical reactions that occur in
living organisms in order to maintain life.
True - True or false: enzymes slow down chemical reactions to conserve energy
False, they speed up (catalyze) chemical reactions - The term for metal ions that assist enzymes during the catalysis reaction
Cofactors - What is catabolism?
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.
Anabolism - An organism that obtains its energy (derives ATP) from photons of light is called a
Phototrophic microorganism
- An organism that derives its energy by removing electrons from elemental sulfur
would be classified as a __
Lithotroph - Describe the energy transfer process relative to both ADP and ATP
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) - This phosphorylation process occurs in the mitochondria of chemotropic eukaryotes
Oxidative phosphorylation - The catabolism of a single molecule of glucose goes through what three transitions
The breakdown of glucose goes through 1. glycolysis 2. fermentation or respiration and
then 3. electron transport chain ETC - True or false: in the absence of absence of oxygen fermentation produces 2 ATP
False - What is the primary byproduct of the TCA cycle select?
NADH and FADH2 - True or false: in the absence of oxygen fermentation produces 2 ATP
False, it does not produce any additional ATP - True or false: the reactants of the TCA cycle directly enter and fuel the electron
transport system