In which of the following plant organs is collenchyma tissue absent?

$A$ parenchymatous cell which stores ergastic substances (waste products) is

Which of the following lacks protoplasm at maturity?

Given below are two statements:
Statement $I$: Parenchyma is living but collenchyma is dead tissue.
Statement $II$: Gymnosperms lack xylem vessels but presence of xylem vessels is the characteristic of angiosperms.
In the light of the above statements,choose the correct answer from the options given below:

$A$ mature sieve tube differs from a vessel in:

What is the most common type of permanent tissue found in almost all plants?