BIOLOGY 1201 EXAM PREP 2026 FULL
QUESTION COLLECTION WITH EXPERT
SOLUTIONS
◉ Metabolism
Answer: the totality of an organism's chemical reactions
◉ Metabolic pathway
Answer: begins with a specific molecule and ends with a product,
each step catalyzed by a specific enzyme
◉ first law of thermodynamics
Answer: Energy can be transferred and transformed, but it cannot
be created or destroyed.
◉ second law of thermodynamics
Answer: Every energy transfer or transformation increases the
entropy of the universe.
◉ Entropy
Answer: A measure of disorder or randomness.
, ◉ Spontaneous reaction
Answer: Release free energy (exergonic)
◉ Non-spontaneous reaction
Answer: requires free energy (endergonic)
◉ Free energy (G)
Answer: The portion of a system's energy that can perform work
◉ Gfinal> Ginitial
Answer: Endergonic, non spontaneous
◉ GInitial>Gfinal
Answer: Exergonic, spontaneous
◉ In catalysis
Answer: enzymes or other catalysts speed up specific reactions by
lowering the EA barrier
◉ Transition state
Answer: Exists at a higher energy state than the reactants, EA is
always positive, high energy, unable state
QUESTION COLLECTION WITH EXPERT
SOLUTIONS
◉ Metabolism
Answer: the totality of an organism's chemical reactions
◉ Metabolic pathway
Answer: begins with a specific molecule and ends with a product,
each step catalyzed by a specific enzyme
◉ first law of thermodynamics
Answer: Energy can be transferred and transformed, but it cannot
be created or destroyed.
◉ second law of thermodynamics
Answer: Every energy transfer or transformation increases the
entropy of the universe.
◉ Entropy
Answer: A measure of disorder or randomness.
, ◉ Spontaneous reaction
Answer: Release free energy (exergonic)
◉ Non-spontaneous reaction
Answer: requires free energy (endergonic)
◉ Free energy (G)
Answer: The portion of a system's energy that can perform work
◉ Gfinal> Ginitial
Answer: Endergonic, non spontaneous
◉ GInitial>Gfinal
Answer: Exergonic, spontaneous
◉ In catalysis
Answer: enzymes or other catalysts speed up specific reactions by
lowering the EA barrier
◉ Transition state
Answer: Exists at a higher energy state than the reactants, EA is
always positive, high energy, unable state
