MICROBIOLOGY 2215 CSCC
COMPREHENSIVE EXAMINATION TEST
COMPLETE QUESTIONS WITH ACCURATE
SOLUTIONS
●● What is catabolism?
Answer: - Degradation or breaking of large molecules into smaller
molecules and often release energy
- Breakdown of large molecules produce smaller molecules which are
used as precursor metabolites in anabolism
●● What is anabolism?
Answer: reactions involved in the synthesis of cell components, require
energy produced from catabolic reactions
●● What is ATP?
Answer: energy currency of cells
●● How is ATP used to store free energy?
Answer: energy is stored within the phosphate groups
,- removal of a phosphate group will release energy
- addition of a phosphate group will consume energy
●● What is substrate level phosphorylation?
Answer: Uses chemical energy to add a phosphate ion to a molecule of
ADP.
Substrate level phosphorylation generates much less ATP during cellular
respiration than oxidative phosphorylation.
●● What is oxidative phosphorylation?
Answer: Uses energy from the proton motive force to add a phosphate
ion to ADP.
●● What is photophosphorylation?
Answer: The generation of ATP from ADP using radiant energy from the
sun
●● What are the 3 different biochemical pathway structures?
Answer: linear pathways, branched pathways, and cyclic pathways
●● How do enzymes work?
Answer: Lower activation energy needed to start a chemical reaction
, ●● What is a substrate?
Answer: the molecule that binds to the enzyme
●● What are products?
Answer: the end result of a chemical reaction
●● What is the active site?
Answer: The active site is the region on the enzyme where the substrate
binds, and a chemical reaction is catalyzed.
●● What are exoenzymes?
Answer: enzymes secreted by microbes that break down and inflict
damage on tissues
break down large molecules OUTSIDE of the cell. MUST be exported.
●● What are endoenzymes?
Answer: enzymes that function inside the cell
break down molecules inside of the cell
●● What is competitive inhibition?
COMPREHENSIVE EXAMINATION TEST
COMPLETE QUESTIONS WITH ACCURATE
SOLUTIONS
●● What is catabolism?
Answer: - Degradation or breaking of large molecules into smaller
molecules and often release energy
- Breakdown of large molecules produce smaller molecules which are
used as precursor metabolites in anabolism
●● What is anabolism?
Answer: reactions involved in the synthesis of cell components, require
energy produced from catabolic reactions
●● What is ATP?
Answer: energy currency of cells
●● How is ATP used to store free energy?
Answer: energy is stored within the phosphate groups
,- removal of a phosphate group will release energy
- addition of a phosphate group will consume energy
●● What is substrate level phosphorylation?
Answer: Uses chemical energy to add a phosphate ion to a molecule of
ADP.
Substrate level phosphorylation generates much less ATP during cellular
respiration than oxidative phosphorylation.
●● What is oxidative phosphorylation?
Answer: Uses energy from the proton motive force to add a phosphate
ion to ADP.
●● What is photophosphorylation?
Answer: The generation of ATP from ADP using radiant energy from the
sun
●● What are the 3 different biochemical pathway structures?
Answer: linear pathways, branched pathways, and cyclic pathways
●● How do enzymes work?
Answer: Lower activation energy needed to start a chemical reaction
, ●● What is a substrate?
Answer: the molecule that binds to the enzyme
●● What are products?
Answer: the end result of a chemical reaction
●● What is the active site?
Answer: The active site is the region on the enzyme where the substrate
binds, and a chemical reaction is catalyzed.
●● What are exoenzymes?
Answer: enzymes secreted by microbes that break down and inflict
damage on tissues
break down large molecules OUTSIDE of the cell. MUST be exported.
●● What are endoenzymes?
Answer: enzymes that function inside the cell
break down molecules inside of the cell
●● What is competitive inhibition?
