Primary water channel

Rice belong to genus Oryza. The cultivated species are Oryza sativa and Oryza glaberrima. Oryza glaberrima has been cultivated in West Africa. Rice is grown under many different conditions and production system, but submerged in water is the most common method use worldwide. Rice is the only cereal crop that can grown for long periods of time in standing water. 57% of rice is grown on irrigated land, 25% on rainfed lowland, 10% on the uplands, 6% in deepwater and 2% in tidal wetland.

7p nguathienthan2 25-12-2019 12 0   Download

Aquaporin 5 (AQP5) is most likely the primary water channel in the human nasal mucosa and acts as a key tight junction protein. The signaling cascades responsible for AQP5 regulation are still works in progress.

8p vicaracas2711 27-11-2019 14 1   Download

The passage of salt (NaCl) across a plasma membrane is of primary importance to most cells. The chloride ion (Cl–) usually crosses the plasma membrane because it is attracted by positively charged sodium ions (Na+). First sodium ions are pumped across a membrane, and then chloride ions simply diffuse through channels that allow their passage. As noted in Figure 4.2a, the genetic disorder cystic fibrosis results from a faulty chloride channel. Ordinarily, after chloride ions have passed though the membrane, sodium ions (Na+) and water follow.

148p commentcmnr 03-06-2013 52 7   Download

Mining wastes can cause significant ecological destruction. Often, solid mine wastes are dumped into streams, destroying habitat and causing siltation and heavy metal and other contamination. Even when such wastes are stored out of water channels, trace materials can leach into surface waters and infiltrate into local groundwater. Fine- grained tailings can wash into local waterways and degrade streams by covering and filling coarser-grained substrates.

41p saimatkhauroi 01-02-2013 58 4   Download