Plant fiber is a type of collenchyma cell.
true
false

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

hello there the answer is d

i am going to guess that it is co2.

can you give me more to work here with plzs and you