Prepare for NEET Biology Anatomy of Flowering Plants (Secondary Growth) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert solutions to understand cambial activity, growth rings, and wood formation.
NEET Questions / Botany / Anatomy of Flowering Plants / Secondary Growth
The vascular cambium is responsible for producing which tissues?
Primary xylem and phloem
Cork and phelloderm
Secondary xylem and phloem
Epidermis and cortex
Which tissue forms the 'wood' of a tree?
Primary xylem
Secondary phloem
Secondary xylem
Cork
In a woody dicot stem undergoing secondary growth, which of the following cell types would be LEAST likely to be found within the region of the secondary phloem?
Sieve tube elements
Companion cells
Phloem fibers
Tracheids
The formation of annual rings in trees growing in temperate regions is primarily influenced by:
Rate of primary growth
Seasonal variations in cambial activity
Amount of heartwood formation
Activity of the cork cambium
Which of the following is NOT a function of the periderm?
Protection against desiccation
Protection against mechanical injury
Protection against pathogens
Conducting water and minerals
The vascular cambium in dicot stems primarily gives rise to which of the following tissues?
Primary xylem and primary phloem
Secondary xylem and secondary phloem
Pith and cortex
Epidermis and periderm
During secondary growth in a dicot root, the vascular cambium produces:
Primary xylem and primary phloem
Secondary xylem and secondary phloem
Cortex and endodermis
Root hairs and root cap
Which of the following tissues are NOT produced by the vascular cambium?
Secondary xylem
Secondary phloem
Pith rays
Wood
A plant with a damaged vascular cambium will likely have difficulty in:
Absorbing water from the soil
Carrying out photosynthesis
Transporting water, minerals, and sugars
Producing flowers
I. The 1Β° and 2Β° phloem get gradually crushed due to the continued formation and accumulation of 2Β° xylem
II. 1Β° xylem remains more or less intact in or near the centre
III. Secondary growth results in an increase in the length of the axis
Select the correct statements
I and II
II and III
I and III
I, II and III