An enzyme that can facilitate the breakdown of amylose into smaller units is

The digestive enzyme amylase helps breakdown of amylose into smaller units. Amylose is a polysaccharide carbohydrate or starch that is a thickener, water binder, emulsion stabilizer and gelling agent. Amylase on the other hand is an enzyme that you can find in saliva and pancreatic fluid. 

The correct answer is A. More oxygen is produced during photosynthesis than the plant needs for cellular respiration, so the plant needs to release the extra oxygen.