Where do the light reactions occur?
wow
the thylakoid in the grana
the thylakoid in the cytoplasm
the thylakoid in the chloroplast
the thylakoid in the membrane
d

A60-tooth gear is connected to a 72-tooth gear.if the smaller gear turns 12 times,how many turns does the larger gear make?

What kinds of molecules can pass through the cell membrane without any problem?

Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit.there is a precise compatibility between the active site and the lactose molecule.specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed.reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.