BIOD 171 MICROBIOLOGY LAB 2 EXAM
PORTAGE LEARNING 2026 EXAM SCRIPT
COMPLETE Q AND A STUDY GUIDE
⩥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 - False
PORTAGE LEARNING 2026 EXAM SCRIPT
COMPLETE Q AND A STUDY GUIDE
⩥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 - False
