Hey Taonga! Tropism involves an organism (mainly plant) growing toward or away from a stimulus. Taxis involves an organism (protist or animal) moving toward a stimulus.
I would most likely associate this with either pneumonia (acute) or if patient is older some form of COPD; possibly Chronic Bronchitis.
Cell wall and chloroplast are two examples of structures which are found in plant cells but not in animal cells.
A way of storing carbon in organic material is Burning fossil fuels or D all of these
