The pressure that develops in the xylem during imbibition of water by seeds is primarily responsible for which of the following?
Transpiration pull
Root pressure
Breaking open the testa
Guttation
Related Questions
Rate of imbibition is more in?
Protein
Carbohydrates
Cellulose
Lipids
Which of the following factors DOES NOT significantly affect the rate of imbibition?
Temperature
Affinity of the imbibant for the liquid
Surface area of the imbibant
External hydrostatic pressure
The first process by which water enters into the seed coat when a seed is placed in suitable environment for germination is
Imbibition
Osmosis
Diffusion
Active Absorption
At the time of seed germination, when water is absorbed by the seed due to imbibition, the seed coat breaks as it swells to a lesser degree than the kernel because
The kernel is made up of cellulose while the seed coat is made up of proteins lipids and starch
The kernel is made up of proteins, lipids and starch, while the seed coat is formed of cellulose
Both kernel and seed coat are made up of same
None of the above constituents, it depends on the nature of medium
Imbibition plays a crucial role in the initial stages of water absorption by which plant structure?
Xylem vessels
Phloem sieve tubes
Root hairs
Stomata
When pea seeds and wheat grains are soaked in water, pea seeds showed more swelling than the wheat. The reason is
Imbibitions capacity of proteins is more than that of starch
Presence of less hydrophilic colloids in the wheat grains
Cell membrane of pea seeds is more permeable
Cell wall of wheat grains are less permeable
Which force is primarily responsible for imbibition?
Gravitational forces
Cohesive forces
Adhesive forces
Osmotic pressure
The pressure that develops in the imbibant due to imbibition is called:
Osmotic pressure
Turgor pressure
Wall pressure
Imbibition pressure
The pressure required to prevent the swelling of a gelatine block when immersed in water is called:
Osmotic pressure
Turgor pressure
Wall pressure
Imbibition pressure
The first process by which water enters into the seed coat when a seed is placed in suitable environment for germination is
Imbibition
Osmosis
Diffusion
Plasmolysis
