Which of the following is the best evidence
that digestion involves chemical change?
a time is required to accomplish results.
b the products’ mass equals the reactants’
mass.
c different compounds are involved.
d new substances are produced.

Starch and are common polysaccharide carbohydrates found in plants. sucrose glycogen fructose cellulose

3) in peaches, [oh]=3.16x10-11 m a) find [h+ ] b) what is the ph? c) is the solution acidic, basic, or neutral?

If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion