Amino acid is to protein as...

A. simple sugar is to starch.
B. lipid is to steroid.
C. NADH is to ATP
D. glucose is to DNA.

Rotenone is an insecticide that is toxic

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

Asolution of an enzyme and a substrate was placed in a water bath and the temperature of the reaction was raised gradually. the graph shown was plotted at the end of the experiment. what can be concluded from the graph? a) temperature has no effect on the activity of the enzyme. b) the effect of temperature on the enzyme is unpredictable. c) the enzyme shows increased activity up to a certain temperature. d) the activity of the enzyme is inversely proportional to the temperature.