How do enzymes speed up biochemical reactions?

a. they provide energy to the reactants.
b. they absorb energy from the products.
c. they lower the activation energy of the reactions.
d. they increase the number of avaible reactant particles.

they lower the activation energy of reaction

there really is life in the deepest part

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.