Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Fensom and Spanner Electroosmotic Flow Hypothesis
In electroosmosis the ions flow across a membrane in response to electrical gradient. Ions pull along water and other contents because of solvent drag. In this hypothesis it is visualised that sap flows in the lumen of sieve element and electroosmosis occurs across the sieve plate. The basic idea of this model is represented in Figure. The pores of sieve are negatively charged and many positive ions are associated with them. The companion cells of consecutive sieve elements are shown to be engaged in K+ uptake and release. This generates a (K+) gradient in the direction of phloem sap flux; the fluxes of other solutes are coupled to K+ flux and move along with the electroosmotic flow from one sieve tube to the next.
Figure: Active uptake of K+ by the companion cell from its associated sieve tube on the left and secretion of K+ into the sieve tube at the right side by its companion cell generate both e potential difference and a K+ concentration gradient. This causes a now of K+ ions and other solutes from right hand side to left.
Denaturing Gel is an agarose or the acrylamide gel run under conditions which destroy the secondary or tertiary protein or RNA. For protein, this generally means the inclusion of
State two ways in which sulphur dioxide emissions from coal-fired generating stations could be reduced. Sulphur dioxide emissions can be reduced by fitting desulphurization pl
How can germs can be transmitted Germs can be transmitted many ways, including: Touching dirty hands; Changing dirty or contaminated cloths; Through contaminated water and f
Cake mix evaluation Originally, cake mix formulations were very similar to bakery cakes and utilized standard "Hi-Ratio" cake oils; however, development of improved cake mixes
Concept behind Freezing the milk Freezing the milk also alters its composition and properties to a great extent. Let us learn about these changes. As the milk freezes, it becom
Q. What is xaxim? Most pteridophytes have subterraneous stems similar to the substrate called as rhizomes. Xaxim is a kind of pteridophyte with an aerial stem in generally perp
Define the Bacillus cereus Bacillus cereus is not a common cause of food poisoning. It is a Gram positive, aerobic, spore forming rod shaped bacteria normally present in soil,
Olericulture: It concerned with the cultivation or development of vegetables yielding plants. Olericulture is the study of vegetable growing, dealing with the culture of non-woody
Briefly explain Lichens organism? Lichens are unique organisms consisting of a symbiotic relationship between a fungus and a photosynthetic organism. They represent a type of s
As we have seen, in during epinephrine hormonal control or glucagon, dephosphorylated phosphorylase kinase is activated by being phosphorylated by protein kinase. This then a
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd