Long distance transport, Biology

Assignment Help:

Long Distance Transport

Once in the xylem vessels, the transport of the mineral elements from the root to the shoot is driven by the gradient of hydrostatic pressure (root pressure) and by the gradient of water potential. The gradient of water potential between roots and shoots is usually quite steep during the day when the stomata are open. It follows the pattern: atmosphere << leaf cells << xylem sap < root cells < external solution (soil). Transport in xylem vessels is mainly unidirectional. An increase in the transpiration rate enhances both the uptake and the translocation of mineral elements in the xylem.

 


Related Discussions:- Long distance transport

Define uses isolated soybean proteins, Define uses isolated soybean protein...

Define uses isolated soybean proteins? Partially hydrolysed soy proteins possess good foam stabilization properties and can be used as whipping agents in combination with egg a

Respiration, what is the respiration interdisiplinary field,legal concerns,...

what is the respiration interdisiplinary field,legal concerns,backgroun and ad vantages and diadvantages

Define the redia larva - platyhelminthes, Define the Redia Larva? Redia...

Define the Redia Larva? Redia is the third larval stage in the life cycle of F. heputicn. Redia develops from the germ cell Is of the sporocyst and comes out of the sporoc

Why the rate of photosynthesis does increases, Why the rate of photosynthes...

Why the rate of photosynthesis does increases, peak, and then reduces as temperature increases? Increasing the temperature initially accelerates the many chemical reactions in

Do you know about lateral lines of fishes, Q. What are the lateral lines of...

Q. What are the lateral lines of fishes? The lateral lines of bony fishes are sense organs that extend along both sides of the animal body they make contact with the environmen

How are secondary cell walls different from primary cell, How are secondary...

How are secondary cell walls different from primary cell walls? Primary cell walls are assembled on the surface of the plasma membrane whereas the cell is growing. They can gro

How do homeotic genes regulate development in drosophila, How do homeotic g...

How do homeotic genes regulate development in Drosophila? Homeotic genes code for regulatory proteins that are thought to control the rate of cell division in various body area

Why water is considered a universal solvent, Water is considered a universa...

Water is considered a universal solvent because- Select one: a. it can dissolve polar and non-polar compounds b. it can dissolve both positively and negatively charged ions a

Micro-organisms in medicines, In terms of western medicines, over 3000 anti...

In terms of western medicines, over 3000 antibiotics - including penicillin and tetracycline - are obtained from micro-organisms. Another product of micro-organisms i.e. cyclospori

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd