Pathogenic means bacterium, virus, or other micro organism that causes disease. So the answer is C.
Isolation. Is best to break infection
The answer is vacuole.
The large central vacuole of the plant cell, holds all the water which therefore makes it turgid
I don't know witch definition you mean, but here: https://www.google.com/search?q=google+dictionary&rlz=1C1CHBF_enUS871US871&oq=google+dic&aqs=chrome.0.0j69i57j0l6.3972j0j7&sourceid=chrome&ie=UTF-8#dobs=blowout
Conversion of cellulose into glucose units.
Hope I helped :)