Module 2 exam portage learning microbio
171 BIOD question with answers
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 - -False
171 BIOD question with answers
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 - -False
