Portage Learning Questions and
Answers
1. True or false: metabolism is a controlled set of biochemical
reactions that occur in living organisms in order to maintain life.:
True
2. True or false: enzymes slow down chemical reactions to conserve
energy: false, they speed up (catalyze) chemical reactions
3. The term for metal ions that assist enzymes during the catalysis
reaction: co- factors
4. What is catabolism?: The process of breaking down larger molecules into useful energy
sources
5. Upon cellular injury, which metabolic process is involved during
the growth and repair phases of the cell.: anabolism
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, 6. An organism that obtains its energy (derives
ATP) from photons of light is called a : phototrophic microorganism
7. An organism that derives its
energy by removing electrons from elemental sulfur would be
classified as a : Lithotroph
8.----------------------------------------------------------------------------------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)
9. This phosphorylation process occurs in the mitochondria of
chemotropic eukaryotes: oxidative phosphorylation
10. 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
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