Model of Xylem and Phloem

Xylem and Phloem

The model shows the elements of xylem - blood vessels (tracheae), tubular cells with dissolved transverse septa. Dead blood vessel cells do not contain protoplasts, only an aqueous solution of minerals (shown as empty cells).
The model shows elements of the lycae - sieve cells (phloem), living cells connected by perforated cell walls (sieves). Living cells do not contain vacuoles and nuclei, their contents consist of protoplast (cytoplasm shown in white) containing mitochondria (red organelles) and plastids (black and yellow organelles).
The cell size ratio of blood vessels and sieve cells approximately corresponds to reality.