In a monocot stem, the scattered vascular bundles are surrounded by a sclerenchymatous sheath. This sheath primarily functions to:
Store starch and other carbohydrates for the plant.
Regulate the transport of water and nutrients within the bundle.
Provide mechanical strength and support to the vascular bundles.
Facilitate gaseous exchange between the vascular tissues and the surrounding parenchyma.
Related Questions
Internal organisation of a dicotyledonous stem differs from that of monocotyledonous stem in
Absence of phloem parenchyma
Absence of parenchymatous pith
Presence of differentiated ground tissue
Presence of water containing cavities
Why is secondary growth absent in monocot stems?
Presence of scattered vascular bundles
Absence of cambium
Presence of sclerenchyma
Lack of interfascicular cambium
The 'monkey face' appearance in a transverse section of a monocot stem vascular bundle is due to:
Presence of sclerenchyma sheath
Arrangement of xylem and phloem
Size of the vascular bundle
Presence of lysigenous cavity
In a typical monocot stem, which tissue is immediately external to the phloem in a vascular bundle?
Xylem
Parenchyma
Sclerenchyma
Cambium
Monocot stem has all, except
Epidermis
Vascular bundles
Medullary rays
General cortex
The ground tissue in a monocot stem is often described as 'undifferentiated'. This implies that:
It consists only of parenchyma cells with no other cell types.
It lacks intercellular spaces and is compactly arranged.
The cortex, endodermis, and pericycle are not clearly distinguishable.
It is incapable of further differentiation into specialized tissues.
A plant's transverse section reveals scattered vascular bundles enclosed by a bundle sheath, abundant parenchyma, conjoint and closed vascular bundles, and no phloem parenchyma. Which plant category and part does this describe?
Monocot stem
Dicot stem
Monocot root
Dicot root
Which of the following is NOT a characteristic feature of a monocot stem?
Scattered vascular bundles
Presence of a well-defined pith
Presence of ground tissue
Closed vascular bundles
Which of the given phloem is absent in monocots?
Protophloem
Metaphloem
Secondary phloem
Primary phloem
Conjoint collateral closed vascular bundle is found in
Monocot stem
Monocot root
Dicot stem
Dicot root
