Under which of the following specific environmental conditions would guttation be LEAST likely to occur?
Cool, humid night with high soil moisture
Warm, humid morning with adequate soil moisture
Cool, dry night with moderate soil moisture
Hot, dry day with low soil moisture
Related Questions
Under which of the following specific environmental conditions would guttation be LEAST likely to occur?
Cool, humid night with high soil moisture
Warm, humid morning with adequate soil moisture
Cool, dry night with moderate soil moisture
Hot, dry day with low soil moisture
Statement: Root pressure is acidic due to the secretion of organic acids into the xylem.
Reason: Active transport of ions into the xylem lowers the pH.
Choose the correct option:
Both the statement and reason are correct and the reason is the correct explanation for the statement.
Both the statement and reason are correct but the reason is not the correct explanation for the statement.
The statement is correct but the reason is incorrect.
The statement is incorrect but the reason is correct.
Which phenomenon demonstrates the existence of root pressure?
Transpiration
Wilting
Guttation
Photosynthesis
Root pressure is typically acidic. Which of the following best explains this acidity?
Active transport of ions, including , into the xylem sap
Passive diffusion of organic acids from the phloem
Presence of carbonic acid formed from respiration
Alkalization of the surrounding soil
Root pressure primarily contributes to the movement of water in:
Tall trees
Short plants and herbs
Desert plants
Submerged aquatic plants
Who proposed the ‘Cohesion Theory’ of ascent of sap?
Strasburger
Godlewski
Western
Dixon andJolly
Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using one of following options:
Both processes cannot happen simultaneously
Both processes can happen together because the diffusion coefficient of water and is different
The above processes happen only during night time
One process occurs during day time, and the other at night
The primary reason for a passive flow of water from soil into the atmosphere through the plant body is?
Cohesive forces
Adhesive forces
Tension
Water potential gradient
Root pressure is due to
Diffusion
Passive transport
Active transport
Osmosis
The magnitude of root pressure ranges between
2-5 atm
1-5 atm
0.1-0.2 atm
4-6 atm
