Prepare for NEET with Botany-specific practice questions. Covering all major Botany chapters, this is perfect for your NEET Biology needs.
Which specific adaptation in the leaves of submerged hydrophytes contributes MOST significantly to their buoyancy and flexibility in water currents?
Highly dissected leaves
Absence of stomata
Presence of extensive aerenchyma
Thin cuticle
In a nitrogen-limited ecosystem, which of the following adaptations would be MOST advantageous for a plant?
Increased leaf surface area for enhanced light capture
Deeper root systems for accessing groundwater
Symbiotic association with nitrogen-fixing bacteria
Thicker cuticle to reduce water loss
In a plant adapted to arid conditions, you would expect to find a higher proportion of sclerenchyma tissue in which region, and for what primary purpose?
Stem, to provide structural support against strong winds and reduce water loss
Leaves, to increase photosynthetic efficiency in harsh sunlight
Roots, to enhance water absorption from deep soil layers
Flowers, to attract pollinators in a resource-scarce environment
Which specific adaptation allows some plants to minimize water loss while still facilitating gas exchange for respiration?
Increased leaf surface area
Absence of stomata
Continuous, high rates of transpiration
Stomatal opening primarily at night in CAM plants
Root pressure primarily contributes to the movement of water in:
Tall trees
Short plants and herbs
Desert plants
Submerged aquatic plants
If a plant utilizes PEP carboxylase for primary fixation, it is MOST likely adapted to which environment?
Hot and dry
Cold and wet
Shaded and humid
Aquatic
Which type of root develops from the stem base of plants like the banyan tree, providing additional support?
Adventitious roots
Tap roots
Fibrous roots
Storage roots
A researcher observes a plant exhibiting high photosynthetic rates even under high light intensity and temperature conditions. Which of the following is the LEAST likely explanation for this observation?
The plant utilizes a C4 photosynthetic pathway.
The plant exhibits low photorespiration rates.
The plant has an extensive root system.
The plant effectively manages water loss.
Seed dormancy is an important adaptation that prevents premature germination. Which of these is NOT associated with maintaining this dormant state?
Abscisic acid
Phenolic acids
Short-chain fatty acids
Gibberellins
The colorful and fragrant flowers of water hyacinth and water lily are adaptations to attract which type of pollinator?
Birds
Bats
Insects
Wind
