--%>
Assignment Help - homework help

Permeability how membranes are categorized

Regarding their permeability how membranes are categorized?

E

Expert

Verified

Membranes can be categorized as impermeable, semi permeable, permeable or selectively permeable. An impermeable membrane is which through which no substance can pass. Semi permeable membranes are those which permit only solvents, like water, to pass through it. Permeable membranes are those which permit solutes and solvent, like ions and molecules, to pass across it. There are as well selectively permeable membranes, that is, membranes that besides permitting the passage of solvent allow only some particular solutes to pass while blocking others.

   Related Questions in Biology

  • Q : Structures which form external ear

    Write down the structures which form external ear? And also write down its function?

    		•
  • Q : Mucous membrane of intestine Subsequent

    Subsequent to digestion the later step is absorption completed by cells of the mucous membrane of intestine. For this task a big absorption surface is a benefit. How is it probable in the small interior space of the body of a pluricellular organism to exist a big inte

    		•
  • Q : State Equal Employment Opportunity or

    Equal Employment Opportunity (EEO): This is making sure that everybody has equivalent access to accessible employment by: • Making sure that workplaces are free from harassment and discrimination and,&bu

    		•
  • Q : PLANNING PLANNING Meaning and

    PLANNING Meaning and definition: planning may be defined as deciding in advance what is to be done in future. It is the

    		•
  • Q : Project proposal Individual Project

    Individual Project Proposal: 10% Deadline: End of Learning Week 4 Initial work-in-progress report to confirm a project's aims and proposed solution and to identify

    		•
  • Q : Pairing of nitrogen having bases in the

    Name the rule for the pairing of nitrogen having bases in the DNA molecule? And in RNA? Is this question proper?

    		•
  • Q : Respiration of animals Oxygen comes

    Oxygen comes from the environment and carbon dioxide in the end returns to the environment. How small animals do solve the problem of taking away and bringing these molecules from/to their cells? Why isn't that solution possible for the larger animals?

    		•
  • Q : Recent Developments-Technology

    a) "Knowledge portals" available on employees' individual desktop PCs or PDAs for easy access to all useful data in the organization. b) Software that transforms text and numbers into charts and graphs to make it easier to glean relevant information. c) More sophisticated filters,

    		•
  • Q : Explain Occupational Health and Safety

    Occupational Health & Safety (OH&S): It is a cross-disciplinary region concerned with protecting the safety, health and welfare of public engaged in work or employment. The main goals of occupational safety and health programs

    		•
  • Q : Name the vessels which carry blood to

    Name the vessels which carry blood to the kidneys? Is this blood venous or arterial?

    		•