BIO 171 Module 2 Exam with Answers- Portage Learning
True or False: Metabolism is a controlled set of biochemical reactions that occur in living
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organisms in to maintain lifeANS True
T/F: Enzymes are polysaccharides that catalyze chemical reactionsANS False
(enzymes are proteins)
What are usually metal ions and assists enzyme during the catalysis reaction?ANS
Cofactors
Define catabolismANS 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?ANS The anabolic process would be active as it is involved in the
building up of small complexes into larger complexes
Describe energy transfer process relative to both ATP and ADPANS ATP has the
energy (phosphate group) to donate while ADP can accept energy in the form of a
phosphate group. Thus ATP can be reduced (ATP-ADP+Pi) while ADP can be built into
ATP (ADP+Pi-ATP)
An organism that derives its energy (generates ATP) from photons of light is calledANS
Phototrophic microorganism
An organism that derives its energy by removing electrons from elemental sulfur would
be classified asANS Lithotroph
A reactive intermediate would be present in which phosphorylation processANS ?
The chemical compound losing the phosphate group is referred to as theANS
phosphorylated reactive intermediate
The catabolism of a single molecule of glucose goes through what 3 distinct
transitionsANS Glycolysis, Fermentation or Respiration, then the ETC- electron
transport chain
What is the most energetic transition in the catabolism of glucose?ANS The electron
transport chain yields 34 ATP while both glycolysis and fermentation (or respiration)
each yield only 2 ATP
Identify the reactants of the following chemical equation:
Glucose + 2NAD+ -> 2 NADH + 2 Pyruvate + 2ATPANS The reactants are to [Show Less]