Which enzyme catalyzes the reaction: 2H2O2 ? 2H2O + O2?
A) catalase
B) oxidase
C) peroxidase
D) superoxide dismutase
A
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Which of the following is NOT TRUE of
photolysis? a. It is a function of the cyclic pathway. b. It involves photosystem II. c. It occurs in the light-dependent reactions. d. It is the source of oxygen in photosynthesis. e. It directly replaces electrons lost by p680
The contractile ring that works with animal cells could not work with plant cells because __________. Fill in the blank(s) with the appropriate word(s)
Exergonic reactions do not require activation energy to get started since they release energy.
a. true b. false
In trees, such as the horse chestnut, the abscission of leaves and fruits in the fall is mediated by ____.
A. abscisic acid B. auxin C. ethylene D. cytokinin E. gibberellin