The flow of material through a reaction pathway usually depends on
(a)control of the first step of the pathway
(b)control at several steps in the pathway
(c)covalent modification of the enzyme that catalyzes the reaction
(d)feed-forward activation

The table lists the observations students made about four specimens under a microscope. based on these observations, what specimens did the students examine? animal plant virus prokaryote cell membrane present ribosomes present lysosomes present nuclear membrane present cell wall present ribosomes present nuclear membrane absent cell wall present ribosomes present nucleus present large vacuole present reproduces inside of a cell nucleus absent rna present 2019 edmentum all rights reserved intl