A) mesarch
B) centrarch
C) endarch
D) exarch
Correct Answer: D
Solution :
When the protoxylem elements lie at the periphery and metaxylem in the centre, the condition is said to be exarch. Here the direction of development is centripetal e.g., root. When the protoxylem elements lie towards the centre and metaxylem at the periphery, the condition is said to be endarch. Here, the direction of development is centrifugal e.g., stem.
You need to login to perform this action.
You will be redirected in
3 sec
