Campbell Biology: Unit 3 Test- Chapters 8, 9, 10 Flashcards
the cellular process of breaking down large molecules into smaller ones
Which of the following are true for anabolic pathways?
A) They are usually highly spontaneous chemical reactions
B) They consume energy to decrease the entropy of the organism and its environment
C) They release energy as the degrade polymers to monomers
D) They consume energy to build up polymers from monomers
E, They consume energy to build up polymers from monomers
A chemical reaction with a positive delta G is correctly described as?
Why is ATP an important molecule in metabolism?
A) Its hydrolysis provides an input of free energy for exergonic reactions
B) It provides energy coupling between exergonic and endergonic reactions
C) It is one of the four building blocks for DNA synthesis
D) Its terminal phosphate has higher energy than the other two
E) Its terminal phosphate group contains a strong covalent bond that, when hydrolyzed, releases free energy
B, it provides energy coupling between exergonic and endergonic reactions
Which of the following is true about enzyme-catalyzed reactions?
A) the reaction always goes in the direction toward chemical equilibrium
B) Enzyme-catalyzed reactions require energy to activate enzyme
C) The free energy change