bio ch 8 quiz

which of the following terms most precisely describes the cellular process of breaking down large molecules into smaller ones

catabolism (catabolic pathways)

which of the following type of reactions would decrease the entropy within a cell

anabolic reactions

why do hydrolysis reactions occur more readily in solution than dehydration reactions

hydrolysis reactions are exergonic and increase entropy of the system 

when chemical, transport, or mechanical work is done by an organism, what happens to the heat generated

it is lost to the environment

which of the following statements is an important consequence of the first law of thermodynamics for a living organism

an organism ultimately must obtain all of the necessary energy for life from its environment

which of the following is the most correct interpretataion of the figure

ATP is a molecule that acts as an intermediary to story energy for cellular work

if a resting muscle cell’s cytoskeleton has a free calcium

ATPase activity must be pumping calcium from the cytoskeleton to the SR against the concentration gradient

choose all four that apply

metabolic, exergonic, spontaneous, catabolic

which of the following statements is true for a system at a chemical equilibrium

the system can do no work

what is the name of thermodynamic barrier that must be overcome before products are formed in a spontaneous reaction 

activation energy