In which of the following cells, end walls are absent?
tracheids
vessels
sieve tubes
sclerenchyma
End walls are absent in vessels.
Question 4 Which cell does not have perforated cell wall? (a) Tracheids (b) Companion cells (c) Sieve tubes (d) Vessels
What substance/substances are transported in plants by : (a) xylem vessels and tracheids ? (b) sieve tubes (or phloem) ?
Which one of the following has cytoplasm but no nucleus : (a) xylem vessel (b) sieve tube (c) tracheid (d) companion cell