What is the name for the system of tubes in plant tissues that water and food move through?
Plant tissues made up of a system of tubes that water and food move through is called phloem tissue.
Companion cells , serve tube elements , fibres and parenchyma are all part of the vascular system of plants and is called phloem.
Sieve tube elements conduct sugars away from the site of photosynthesis ( leaves ) to the other parts of the plant. However companion cells are the life support of the sieve tubes.