Prepare for NEET with Botany-specific practice questions. Covering all major Botany chapters, this is perfect for your NEET Biology needs.
A plant species exhibits cleistogamous flowers alongside chasmogamous flowers. What is the PRIMARY advantage conferred by the cleistogamous flowers?
Increased genetic diversity through cross-pollination
Assured seed set even in the absence of pollinators
Attraction of a wider range of pollinators
Production of larger and more nutritious seeds
The symbiotic relationship between nitrogen-fixing bacteria and leguminous plants involves complex signaling and structural modifications in the root. Which of the following accurately describes the role of NOD factors in this interaction?
Plant hormones that promote bacterial growth within root nodules
Bacterial signals that trigger root hair curling and cortical cell division
Enzymes produced by the plant to break down bacterial cell walls
Proteins that transport nitrogen from bacteria to plant cells
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 process is essential for the continuity of life?
Nutrition
Respiration
Reproduction
Excretion
All living organisms show:
Consciousness
Locomotion
Response to stimuli
Photosynthesis
Growth in living organisms is due to:
Increase in cell number and size
Accumulation of water
Synthesis of new protoplasm
Increase in non-living matter
Which of the following statements about chemotaxonomy is incorrect?
It uses chemical constituents of organisms for taxonomic classification.
It can be useful in distinguishing closely related species with similar morphologies.
It can help in understanding evolutionary relationships.
It relies solely on morphological characteristics for classification.
In numerical taxonomy, the principle of 'overall similarity' emphasizes:
Prioritizing specific key characters over others.
Focusing on derived characteristics rather than ancestral ones.
Considering a large number of characters and giving equal weight to each.
Using only morphological characteristics for analysis.
Which of the following is NOT a characteristic used in the five-kingdom classification system?
Mode of nutrition
Cell structure
Phylogenetic relationships
Presence or absence of a coelom
