BIOD 171- Exam 2 with correct questions and
answers
True or False: Metabolism is a controlled set of biochemical reactions that
occur in living organisms in to maintain life -True
T/F: Enzymes are polysaccharides that catalyze chemical reactions -False
(enzymes are proteins)
What are usually metal ions and assists enzyme during the catalysis
reaction? -Cofactors
Define 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? -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 ADP -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
called -Phototrophic microorganism
An organism that derives its energy by removing electrons from elemental
sulfur would be classified as -Lithotroph
A reactive intermediate would be present in which phosphorylation process
-?
The chemical compound losing the phosphate group is referred to as the -
phosphorylated reactive intermediate
The catabolism of a single molecule of glucose goes through what 3 distinct
transitions -Glycolysis, Fermentation or Respiration, then the ETC- electron
transport chain
What is the most energetic transition in the catabolism of glucose? -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:
answers
True or False: Metabolism is a controlled set of biochemical reactions that
occur in living organisms in to maintain life -True
T/F: Enzymes are polysaccharides that catalyze chemical reactions -False
(enzymes are proteins)
What are usually metal ions and assists enzyme during the catalysis
reaction? -Cofactors
Define 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? -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 ADP -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
called -Phototrophic microorganism
An organism that derives its energy by removing electrons from elemental
sulfur would be classified as -Lithotroph
A reactive intermediate would be present in which phosphorylation process
-?
The chemical compound losing the phosphate group is referred to as the -
phosphorylated reactive intermediate
The catabolism of a single molecule of glucose goes through what 3 distinct
transitions -Glycolysis, Fermentation or Respiration, then the ETC- electron
transport chain
What is the most energetic transition in the catabolism of glucose? -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:
