Plant Kingdom Question 608
Question: Assertion : In gymnosperms, plants show well-developed vessels and fibres. Reason : Companion cells are absent in gymnosperm.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If the assertion is false but reason is true
Show Answer
Answer:
Correct Answer: D
Solution:
In gymnosperms, xylem lacks true vessels and wood fibres.
It consists of tracheids that are arranged in uniform radial rows and xylem parenchyma only.
The phloem contains sieve tubes and parenchyma cells.
There are no companion cells.
BETA
