Question

At maturity, which of the following is non- nucleated?

(a) palisade cell

(b) cortical cell

(c) sieve cell

(d) companion cell.

Answer 1

ANSWER:

(c) sieve cell

In pteridophytes and gymnosperms, sieve tubes don't seem to be organized in linear rows and thus known as sieve cells. vascular tissue parts area unit the conducting part of vascular tissue. These area unit organized finish to finishin linear rows with septa (sieve plate) between 2 vascular tissue parts. within the sieve plate, there area unit gift sieve pores. vascular tissue parts reside and have skinny plastic walls in young cells however they become thick walled and area unit while not nuclei at maturity.