Question:
Which one of the following plants has bicollateral vascular bundles in its stem?
Which one of the following plants has bicollateral vascular bundles in its stem?
Updated On: Jun 21, 2022
- Cycas
- Canna
- Pumpkin
- Dracaena
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The Correct Option is C
Solution and Explanation
In bicollateral vascular bundles, phloem patches remain on both sides of the xylem, The phloem present on the outer side of xylem as in collateral vascular bundle is called outer or external phloem. Phloem present on the inner side of xylem is called inner or internal phloem. This type of vascular bundle occurs mainly in the Family Cucurbitaceae. It also occurs in some members of Solanaceae, Convolvulaceae etc. These bundles are always open as the outer and inner patches of phloem are separated from the central xylem by two strips of cambium. Pumpkin (Cucurbita maxima) belongs to Cucurbitaceae family and has bicollateral vascular bundle in its stem.
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Concepts Used:
Anatomy of Dicotyledonous and Monocotyledonous Plants
Dicot Root:
- Dicot plants have the taproot system.
- The outermost layer is called the epidermis. The epidermal cells sometimes project out which appear as the root hairs.
- The epidermis is followed by the multi-layered cortex, loosely made of the parenchyma cells with intercellular spaces.
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- There are two to four xylem and phloem.
- The xylem and phloem are remarked by a layer of parenchymatous cells known as conjunctive tissue.
Monocot Root:
Monocot roots do not show much difference in the anatomy from that of the dicot roots.
- Monocot plants possess an adventitious root system.
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