Rna and proteins combine in cells to form structures called ribosomes. ribosomes contain the enzyme active site for peptide bond formation. based on their chemical structures, do you think protein or rna molecules actually form the active site within the ribosome?
a) it could be either, because both molecules have catalytic properties.
b) protein, because only proteins can catalyze a reaction that involves another protein
c) rna, because proteins cannot catalyze a reaction that involves another protein
d) protein, because rna cannot catalyze reactions

If these are the missing choices: a. to determine skin temperature, place the back of your hand against the patient's skin.b. determine body temperature by touching the patient's hands and feet.c. skin temperature will tell you very little about this patient's condition or well-being.d. the patient's skin temperature and color will likely be warm and red.my answer is: a. to determine skin temperature, place the back of your hand against the patient's skin. using the back of the hand to check for temperature rather than the palm is more effective because the back of the hand has more nerves that can feel and transmit the temperature than the palm.