I I think that it is liquid
Answer - An increase in the width of Stem
(Was answered before in the community)
Credit goes to [PeachSoda]
Reasoning Why I agreed - Plants can grow in the root tips which shows the progression of growth and thats why you would find a lot more plant cells because it will always keep growing.
Plant uses sun energy to convert the carbondiode into energy
More enzymes more useful collisions
Yes it will affect the ph level