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Concerning their permeability how are membranes classified?
Membranes can be divided as impermeable, permeable, semipermeable or selectively permeable.
An impermeable membrane is that by which no substance can pass. Semipermeable membranes are those that let only solvents, like water, to pass by it. Permeable membranes are those that let solvent and solutes, like ions and molecules, to pass across it. There are also selectively permeable membranes, i.e., membranes that besides permitting the passage of solvent let only some specific solutes to pass while blocking others.
State the Transmission of Visual Sensation This process takes place in the visual pathway from the retina to the visual cortex. 'The impulse originating in the retina travels a
Explain about the Torbed Dryer? On the other hand, is a variation of the fluidized bed dryer. This is designed for use with particulate foods. Torbed dryers are used to dry haz
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Quantitative Characters - Population Density Density denotes the average number of individuals of a particular species in a unit area. In other words, it represents the numeri
Pulmonary Ventilation: Pulmonary ventilation is the process by which gasses flow between the atmosphere and lung alveoli. Air moves into the lungs when air pressure inside the
Anomalies Related to Oesophagus and Stomach Let us discuss briefly the anomalies of oesophagus and stomach. These are summarised as follows: Associated Problems 1) P
One characteristic of the DNA molecule is its replication capability. What are the consequences of failures during DNA replication? Ideally a DNA molecule should replicate in a
defitionce of vitamin d
Enzymes are proteins that are catalysts of chemical reactions. From Chemistry, it is called that catalysts are non-consumable substances that decrease the activation energy essenti
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