A plant exhibits vigorous guttation during the night. Which of the following would be the MOST likely consequence of completely sealing the hydathodes with a waterproof sealant without harming the plant otherwise?
A significant decrease in root pressure
A substantial increase in transpiration rate
No change in root pressure or transpiration rate
A slight increase in root pressure
Related Questions
Which of the following best describes the relationship between the movement of water vapor and carbon dioxide through stomata?
They move in the same direction due to the same concentration gradient.
They move in opposite directions due to the same concentration gradient.
They move simultaneously but due to different concentration gradients.
They move sequentially, with one gas moving only after the other has stopped.
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
Hydathodes are involved in which of the following plant processes?
Transpiration
Photosynthesis
Respiration
Guttation
The main difference between root pressure and transpiration pull is that:
Root pressure pushes water up the xylem, while transpiration pull pushes water down from the leaves.
Root pressure occurs only at night, while transpiration pull occurs only during the day.
Root pressure is active transport, while transpiration pull is passive transport.
Root pressure is a positive pressure generated in the roots, while transpiration pull is a negative pressure generated in the leaves.
Which of the following processes contributes MOST to the acidic nature of root pressure?
Active transport of ions into the xylem
Diffusion of from the soil into the roots
Passive movement of organic acids into the xylem
Release of ions into the soil
Water lost in Guttation is
Pure water
liquid droplets
In vapour form
Either (A) or (B)
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
Guttation is mainly due to
Root pressure
Imbibition
Osmosis
Transpiration
The process responsible for facilitating loss of water in liquid form from the tip of grass blades at night and in early morning is
Transpiration
Root pressure
Imbibition
Plasmolysis
Root pressure
Is lowest at morning hours
Is responsible for guttation in grasses
Is highest in noon hours
Play a main role in water transport
