BIOL 271 Module 2 exam (Latest Update
) Microbiology Questions &
Answers {Grade A} 100% Correct - Portage
Learning
What is the source of energy for generating ATP in chemotrophs? - Correct answer
energy stored in the bonds of nutrients
What is the source of electrons for reduction reactions in lithotrophs? - Correct
answer inorganic sources (hydrogen, hydrogen sulfide and metals)
What is the source of electrons for reduction reactions in organotrophs? - Correct
answer organic macromolecules (carbohydrates, lipids, etc.)
Are organic molecules produced from inorganic starting materials in Heterotrophs? -
Correct answer Heterotrophs acquire organic carbon from other sources
You're recreating the cellular chemical reaction in a test tube, or in vitro. When the
reactants are added together, you will be able to measure the products as they are
,produced. You add the enzyme + substrate and wait enough time for the reaction to
take place, but no products are produced! What is the most likely reason? - Correct
answer The enzyme needs a cofactor to catalyze or speed up the reaction.
T/F:
Anabolic reactions produce ATP - Correct answer False
T/F"
Oxidative phosphorylation converts ADP to ATP. - Correct answer True
T/F:
Cellular reactions phosphorylate ATP to form ADP. - Correct answer False
T/F:
Catabolic reactions generate ADP. - Correct answer False
When ADP is dephosphorylated it forms ATP. - Correct answer False
,NAD+/NADH Image (View) - Correct answer Oxidized NAD+ accepts electrons from
catabolic reactions and transfers them to the electron transport chain to generate ATP.
What is NAD+/NADH? - Correct answer NAD+, Nicotinamide adenine dinucleotide is a
coenzyme from niacin (a B3 vitamin).
It is an energy carrier involved in electron transport chain.
What is Cellular Respiration? - Correct answer Catabolic reactions that release
electrons from molecules and transport them using electron carriers to the final
electron acceptor, O2, which produces H2O, energy, and CO2.
Reduction and Oxidation Image (View) - Correct answer When a reduced molecule
loses electrons (and gains H+), the molecule is now oxidized.
When an oxidized molecule gains electrons (and H+), the molecule is now reduced.
Define Oxidation... - Correct answer removes electrons from an atom.
, What does "LEO the lion says GER" mean? - Correct answer Loss Electrons is
Oxidation
Gain of Electrons is Reduction
What is FAD/FADH2? - Correct answer Flavin adenine dinucleotide is a coenzyme from
riboflavin (B2 vitamin). It is an energy carrier involved in transferring electrons.
What is ATP? - Correct answer ATP, Adenosine Triphosphate, a universal energy
carrier within cells.
It's dephosphorylation to ADP releasing energy cells use to grow/divide, build
macromolecules, cell signaling, motility, and movement.
ATP Image (View) - Correct answer High energy ATP with 3 phosphate groups
dephosphorylates to ADP (with 2 phosphate groups) releasing energy stored in the
chemical bonds of the molecule.
) Microbiology Questions &
Answers {Grade A} 100% Correct - Portage
Learning
What is the source of energy for generating ATP in chemotrophs? - Correct answer
energy stored in the bonds of nutrients
What is the source of electrons for reduction reactions in lithotrophs? - Correct
answer inorganic sources (hydrogen, hydrogen sulfide and metals)
What is the source of electrons for reduction reactions in organotrophs? - Correct
answer organic macromolecules (carbohydrates, lipids, etc.)
Are organic molecules produced from inorganic starting materials in Heterotrophs? -
Correct answer Heterotrophs acquire organic carbon from other sources
You're recreating the cellular chemical reaction in a test tube, or in vitro. When the
reactants are added together, you will be able to measure the products as they are
,produced. You add the enzyme + substrate and wait enough time for the reaction to
take place, but no products are produced! What is the most likely reason? - Correct
answer The enzyme needs a cofactor to catalyze or speed up the reaction.
T/F:
Anabolic reactions produce ATP - Correct answer False
T/F"
Oxidative phosphorylation converts ADP to ATP. - Correct answer True
T/F:
Cellular reactions phosphorylate ATP to form ADP. - Correct answer False
T/F:
Catabolic reactions generate ADP. - Correct answer False
When ADP is dephosphorylated it forms ATP. - Correct answer False
,NAD+/NADH Image (View) - Correct answer Oxidized NAD+ accepts electrons from
catabolic reactions and transfers them to the electron transport chain to generate ATP.
What is NAD+/NADH? - Correct answer NAD+, Nicotinamide adenine dinucleotide is a
coenzyme from niacin (a B3 vitamin).
It is an energy carrier involved in electron transport chain.
What is Cellular Respiration? - Correct answer Catabolic reactions that release
electrons from molecules and transport them using electron carriers to the final
electron acceptor, O2, which produces H2O, energy, and CO2.
Reduction and Oxidation Image (View) - Correct answer When a reduced molecule
loses electrons (and gains H+), the molecule is now oxidized.
When an oxidized molecule gains electrons (and H+), the molecule is now reduced.
Define Oxidation... - Correct answer removes electrons from an atom.
, What does "LEO the lion says GER" mean? - Correct answer Loss Electrons is
Oxidation
Gain of Electrons is Reduction
What is FAD/FADH2? - Correct answer Flavin adenine dinucleotide is a coenzyme from
riboflavin (B2 vitamin). It is an energy carrier involved in transferring electrons.
What is ATP? - Correct answer ATP, Adenosine Triphosphate, a universal energy
carrier within cells.
It's dephosphorylation to ADP releasing energy cells use to grow/divide, build
macromolecules, cell signaling, motility, and movement.
ATP Image (View) - Correct answer High energy ATP with 3 phosphate groups
dephosphorylates to ADP (with 2 phosphate groups) releasing energy stored in the
chemical bonds of the molecule.
