Which scientist showed that organisms do not grow spontaneously in beef broth?
A. matthias schledien
B. rudolf virchow
C. louis pasteur
D. theodor schwann

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%

If 360 joules of work are needed to move and create a distance of 4 m what is the weight of the crate

1. an enzyme is considered a(n) because it speeds up a chemical reaction without being used up.2. in a catalyzed reaction, a reactant is often called a(n) . an enzyme is specific because the shape of its matches only particular reactants.4. an enzyme speeds up reactions by lowering the . the between an active site and its substrate often strains bonds and the reaction proceed.6. a( , which is often a vitamin, binds to an enzyme and plays a role in catalysis.7. high temperatures or changes in ph can an enzyme, causing it to lose its shape and biological activity.