1. the binding between an enzyme and its substrate: A. is relatively stable B. consists of weak ionic bonds C. is weak and temporary D. Is none of these.
2. All of the following are factors in enzyme-catalyzed reactions that work alone or in combination to lower the activation energy EXCEPT: A. using ATP as an energy source. B. Helping subtrates get together. C. orienting substrates in positions favoring reaction D. shutting out water molecules.
3. Enzyme activity may be affected by A. the presence of cofactors. B. salinity C. inhibitors D. All of these
4. Allosteric enzymes: A. have active sites where substrate molecules bind and other sites that bind with inhibitor or activator molecules. B. are associated with important energy-carrying nucleotides. C. have two active sites D. are not affected by temperature or pH.
5. Some enzymes are controlled by having nonsubstrates bind to a nonactive site and result in a change in their overall structure; these are called ________. (I put allosteric inhibitor, it was wrong)
6. The loss of an electron by a molecule is called ____. (I put reduction, but I think its oxidized)
7. the enzyme that works in conjunction with ATP to produce bioluminescence is called _______. (I put luciferase and that was wrong)
Thanks!!!
2. All of the following are factors in enzyme-catalyzed reactions that work alone or in combination to lower the activation energy EXCEPT: A. using ATP as an energy source. B. Helping subtrates get together. C. orienting substrates in positions favoring reaction D. shutting out water molecules.
3. Enzyme activity may be affected by A. the presence of cofactors. B. salinity C. inhibitors D. All of these
4. Allosteric enzymes: A. have active sites where substrate molecules bind and other sites that bind with inhibitor or activator molecules. B. are associated with important energy-carrying nucleotides. C. have two active sites D. are not affected by temperature or pH.
5. Some enzymes are controlled by having nonsubstrates bind to a nonactive site and result in a change in their overall structure; these are called ________. (I put allosteric inhibitor, it was wrong)
6. The loss of an electron by a molecule is called ____. (I put reduction, but I think its oxidized)
7. the enzyme that works in conjunction with ATP to produce bioluminescence is called _______. (I put luciferase and that was wrong)
Thanks!!!