Question

Conjoint, collateral, open and endarch vascular bundles are found in _____.

• A. Monocot stem
• B. Monocot root
• C. Dicot root
• D. Dicot stem

Answer 1

The correct option is (D):

Explanation of the correct option:

1. ​The conjoint, collateral system of vascular bundles are present in dicot stem.
   
2. The open system means there is a presence of cambium in the vascular tissue.
   
3. The endarch character shows that the xylem is present towards the internal region.
   

Explanation of the incorrect options:

Option (A):

1. Monocot stem have all the collateral, conjoint and ​endarch arrangement of the vascular bundles.
2. But there is a closed arrangement which means the absence of any cambium between the xylem and phloem.
   

Option (B):

1. In the monocot roots, a the vascular bundles are arranged radially.

Option (C):

1. Dicot roots also shows a radial arrangement of xylem and phloem in the tissues. ​

Final Answer: Conjoint, collateral, open and endarch vascular bundles are found in dicot stem.