Which of the following statements about xylem is incorrect?

a) it conducts material from root tips to leaves.
b) the conducting cells are part of the apoplast.
c) it transports mainly sugars and amino acids.
d) it typically has a lower water potential than is found in soil.
e) no energy input is required for transport.

The incorrect statement is: C) It transports mainly sugars and amino acids.

Xylem together with floem is a plant tissue involved in the transport of substances through the plant.

Xylem’s role is to transport water (sometimes and nutrients) from roots to stems and leaves and to provide support to the plant. Xylem consists of a specialized, water-conducting cells - tracheary elements (tracheids and vessel) which are long, narrow and hollow.

not sure if this is what you'r looking for eubacteria and archaebacteria