Active transport is a process that moves molecules against a concentration gradient. The process requires energy. For plants to take up mineral ions, ions are moved by active transport into root hairs ...

Modifications to existing theories have enabled researchers to better understand and model the dynamics of systems which don't obey conventional laws of diffusion. In normal circumstances, particles ...

(Nanowerk Spotlight) Nanofluidic channels feature a unique unipolar ionic transport when properly designed and constructed. Recent research in nanofluidics has adopted reconstructed layered ...

Animals, including humans, need to absorb all glucose molecules from their food. This is taken from the gut wall, inside the small intestine, into the blood. There is more glucose (a higher ...

Journal of Experimental Botany, Vol. 15, No. 45 (October 1964), pp. 422-427 (6 pages) The electrical potential difference between the exuding sap of detopped castor oil plants and the external 1 mM ...

Transport proteins are proteins that help in transporting of substances across biological membranes. Ions such as sodium and potassium ae the substances transported by transport proteins .They ...