Prepare for NEET Biology Morphology of Flowering Plants with MCQs & PYQs on NEET.GUIDE. Get free practice, previous year questions, and expert explanations of plant structures.
Which of the following statements regarding the anomalous secondary growth in Boerhaavia is INCORRECT?
A variant of cambium outside the vascular bundles
Concentric rings of secondary vascular bundles
Presence of medullary bundles
Inverted vascular bundles
In a dicot stem undergoing secondary growth, which tissue is primarily responsible for the increase in girth?
Cork Cambium
Vascular Cambium
Apical Meristem
Intercalary Meristem
The 'open' vascular bundles found in dicot stems are characterized by:
Scattered arrangement of xylem and phloem with no cambium.
The presence of cambium between xylem and phloem, allowing for secondary growth.
Joint, collateral arrangement of xylem and phloem with no cambium.
Concentric arrangement of xylem and phloem.
In which of the following plants does the stem perform the primary function of photosynthesis?
Ficus
Opuntia
Hibiscus
Mangifera
Which of the following is NOT a function of lenticels?
Gaseous exchange
Transport of water and minerals
Transpiration
Removal of excess water in some plants
The arrangement of vascular bundles in a monocot stem is best described as:
Arranged in a ring
Scattered
Bicollateral
Amphicribral
Which of the following BEST explains the physiological significance of the quiescent center in the root apical meristem?
Promotes rapid cell differentiation to form specialized root tissues
Acts as a reserve of stem cells, protecting the meristem from damage and ensuring continuous growth
Synthesizes hormones that inhibit root elongation and promote branching
Regulates the uptake of water and nutrients from the soil
Which of the following is not a limitation of classical taxonomy?
It relies heavily on morphological characteristics, which can be subject to convergent evolution.
It may not accurately reflect evolutionary relationships.
It can be difficult to distinguish between homologous and analogous traits.
It incorporates molecular data for a more comprehensive analysis.
What is the primary function of the root cap?
Absorbing water
Anchoring the plant
Storing food
Protecting the root apical meristem
Which of the following is NOT a function of the stem in plants?
Support for leaves, flowers, and fruits
Transport of water and nutrients
Storage of food reserves
Absorption of water and minerals from the soil
