BSCS Biology: A Molecular Approach

Chapter 2: Energy, Life, and the Biosphere

Metabolism and Energy Transfer

1.
What is the name of the region of the enzyme to which the substrates bond in a chemical reaction (see arrows in the illustration)?

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A)the passive site
B)the substrate complex
C)the catalyst
D)the active site
2.
Chemicals that lower activation energies, making reactions happen faster, are called ____.
A)catalysts
B)substrates
C)metabolisms
D)oxidates
3.
Which of the following is an example of a decomposition reaction?
A)formation of DNA from nucleotides
B)photosynthesis
C)cell respiration
D)formation of starch from glucose
4.
____ is the removal of electrons from a molecule.
A)reduction
B)oxidation
C)electrolysis
D)decomposition
5.
The most common chemical that transfers energy between living cells in many energy-conversion reactions is called ___.
A)ATP
B)ADP
C)formaldehyde
D)glycogen
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