Prepare for NEET with Botany-specific practice questions. Covering all major Botany chapters, this is perfect for your NEET Biology needs.
Parenchyma cells are typically capable of:
Cell division, photosynthesis, storage, and secretion
Providing structural support and transporting water
Protecting the plant from pathogens and herbivores
Conducting long-distance transport of sugars and minerals
During which stage of interphase are the majority of cellular organelles duplicated?
G1
S
G2
M
During secondary growth in dicot stems, the cells that form the phelloderm are:
Parenchymatous
Sclerenchymatous
Collenchymatous
Fibrous
Which of the following is NOT involved in the formation of annual rings?
Apical meristem
Vascular cambium
Seasonal variation
Secondary xylem
The 'bark' of a tree includes all tissues:
Exterior to the vascular cambium
Interior to the vascular cambium
Within the vascular cambium
Including the pith
Lenticels are primarily involved in:
Gaseous exchange
Water transport
Food storage
Mechanical support
In a woody dicot stem undergoing secondary growth, which tissue is responsible for increasing the girth of the stem?
Vascular cambium
Cork cambium
Apical meristem
Intercalary meristem
The activity of the vascular cambium in temperate regions is influenced by:
Seasonal changes
Gravitational pull
Presence of lenticels
Root pressure
A researcher studying secondary growth in a dicot stem observes a peculiar pattern. The vascular cambium appears to be producing more xylem towards the center than phloem towards the periphery. Which of the following factors is LEAST likely to contribute to this unusual observation?
Hormonal imbalances
Environmental stress
Genetic mutation
Seasonal variations
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