Prepare for NEET with Botany-specific practice questions. Covering all major Botany chapters, this is perfect for your NEET Biology needs.
All living organisms show:
Consciousness
Locomotion
Response to stimuli
Photosynthesis
A defining feature of living organisms is their ability to respond to stimuli. Which of these is an example of a plant responding to a stimulus?
A rock rolling down a hill
Water evaporating from a puddle
Phototropism in a sunflower
Salt dissolving in water
Which P-protein configuration within a damaged sieve element is MOST directly responsible for preventing excessive sap loss?
P-protein dispersing throughout the sieve element lumen
P-protein degrading into amino acids
P-protein lining the sieve element cell wall
P-protein forming a 'plug' at the sieve plate pores
Which plant hormone is primarily responsible for inducing dormancy in seeds and buds, enabling them to withstand unfavorable environmental conditions?
Gibberellin (GA)
Auxin (IAA)
Cytokinin (CK)
Abscisic Acid (ABA)
If a grass plant's leaves are observed to be curled inwards, what can be inferred about the environmental conditions?
The environment is excessively humid
The environment has high salinity
The environment is experiencing strong winds
The environment is likely dry or arid
Which of the following plant growth responses is utilized in the Avena curvature test?
Apical dominance
Seed germination
Fruit ripening
Differential growth
Which plant demonstrates minimal morphological changes in response to varying light intensities?
Sunflower
Cotton
Maize
Bean
Under which environmental condition would bulliform cells be most likely to cause a grass leaf to roll inwards?
High humidity
Low light intensity
Cold temperatures
Hot, dry conditions
Among the following choose the properties shown by the living organism exclusively?
I. growth
II. increase in mass
III. self-replication ability
IV. response to touch stimuli
I and II
II and IV
I and III
III and IV
Select the correct statement from the following statements
I. Increase in mass and increase in number of individuals are twin characteristics of growth
II. Metabolic reactions can also be demonstrated outside the body in isolated cell-free systems
III. โResponse to stimuliโ is a defining property of living organisms
I and II
II and III
I and III
I, II and III