Albuminous cells are some of its constituents. It is associated with P-proteins, which may play a role in active transport of materials through this tissue. It contains a protoplast and sometimes a nucleus when its cells are mature, unlike its counterpart. Its basic constituents, surrounded by companion cells, are separated by plates and are known 
Albuminous cells are some of its constituents. It is associated with P-proteins, which may play a role in active transport of materials through this tissue. It contains a protoplast and sometimes a nucleus when its cells are mature, unlike its counterpart. Its basic constituents, surrounded by companion cells, are separated by plates and are known as sieve cells and sieve-tube members, which interact to promote the conduction and assimilation of nutrients in a plant. FTP, identify this plant tissue that isn't xylem.
Albuminous cells are some of its constituents. It is associated with P-proteins, which may play a role in active transport of materials through this tissue.
{phloem}