Question

in the human stomac, chemical reactions take place in an acidic environment. some of these reactions are catalyzed by enzymes. how would these enzymes most likely function in an environment where the pH was doubled?

the rate of the reactions that are catalyzed by the enzymes would double
the rate of the reactions would increase as the PH is increased
the enzymes would not be able to function properly outside of their pH range
the enzymes would interface with chemical reactions by bonding with the reactants

Answer 1

the quanitity of each type of organelle in a cell varies depending on thetasks the individual cell must perform. if a scientists needed to find cells that contained a large number of chloroplasts, where would be the best place to look ?
the stem of a young tree
a leaf covered by Spanish moss
a leaf growing in full sunlight
the stem of a mature tree

Answer 2

while looking at a cell under a microscope, a scientist is able to see a biological molecule. this molecule is a nucleic acid with a ladder structure and contains the nitrogenous bases adenine, thymine, cytosine, and guanine. based on this information, what conclsion can the scientist draw regarding this nucleic acid?
the nucleid acid is RNA and would be found in the cells nucleus.
the nucleid acid is RNA and would be found in the cytoplasm
the nucleid acid is DNA and would be found in the cytoplasm
the nucleid acid is DNA and would be found in the cells nucleus.