171 BIOD UPDATED ACTUAL Exam
Questions and CORRECT Answers
True or false: metabolism is a controlled set of biochemical reactions that occur in living
organisms in order to maintain life. - CORRECT ANSWER - True
True or false: enzymes slow down chemical reactions to conserve energy - CORRECT
ANSWER - false, they speed up (catalyze) chemical reactions
The term for metal ions that assist enzymes during the catalysis reaction - CORRECT
ANSWER - cofactors
What is catabolism? - CORRECT ANSWER - 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. - CORRECT ANSWER - anabolism
An organism that obtains its energy (derives ATP) from photons of light is called a
__________________ - CORRECT ANSWER - phototrophic microorganism
An organism that derives its energy by removing electrons from elemental sulfur would be
classified as a ____________ - CORRECT ANSWER - Lithotroph
Describe the energy transfer process relative to both ADP and ATP - CORRECT
ANSWER - 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)