NEET Botany - MCQ Practice Questions

The endodermis in roots is primarily characterized by the presence of:

In a monocot stem, the vascular bundles are typically:

Which tissue is responsible for the continuous growth in diameter of dicot stems?

The tissue that replaces epidermis in older roots and stems of woody plants is:

Companion cells in phloem are primarily associated with:

The anatomical feature that distinguishes protoxylem from metaxylem is:

In xerophytic plants, the cuticle is typically:

The pith in a dicot stem is composed of:

Which of the following cells in xylem are living at maturity?

In hydrophytes, the absence of extensive xylem development is primarily because:

The anatomical adaptation of the leaf of Nerium (oleander) for xerophytic conditions includes all of the following EXCEPT:

Which statement best describes the relationship between vessel elements and tracheids in angiosperm xylem?

In a transverse section of a typical dicot root, which tissue layer is responsible for initiating lateral roots?

The stomatal density in mesophytic plants compared to xerophytic plants is typically:

The anatomical basis for the high tensile strength of wood in dicots is primarily due to:

In the phloem, sieve plate perforations serve the function of:

The primary function of root hair cells is to:

The lenticels in woody stems are primarily involved in:

In a transverse section of a typical monocot stem, the vascular bundles are arranged in a scattered pattern throughout the ground tissue. Which of the following anatomical features best explains why monocots can tolerate continuous growth and damage to their vascular tissues better than dicots?

During the development of a dicot leaf, the dorsiventral structure is established with palisade parenchyma on the adaxial surface and spongy mesophyll on the abaxial surface. Which combination of factors is primarily responsible for maintaining this distinct anatomical differentiation?