PPT-1.3 Membrane Structure

Essential idea The structure of biological membranes makes them fluid and dynamic Above are models of a plasma membrane showing how its fluidity allows lipid soluble molecules to move directly through the membrane. 007 pro clima SOLITEX Cover fleece Specialist film A stretchable diffusion permeable specialist 64257lm gives the pro clima SOLITEX membranes extremely high resistance to water At the same time vapourcan pass through it almost unrestricted The tight 2009 pro clima SOLITEX Cover fleece Specialist film A stretchable di57375usion permeable specialist 57374lm gives the pro clima SOLITEX membranes extremely high resistance to water At the same time vapour can pass through it almost unrestricted The t -. Gateway to the Cell. 2. Photograph of a Cell Membrane. 3. Cell Membrane. The cell membrane is . flexible. and allows a . unicellular. organism to . move. 4. Homeostasis. Balanced. internal condition of cells. and Transport. Cell Membrane. Cell membrane- also called the . Plasma Membrane. Separates the cell from its surrounding . environment.  . Helps maintain homeostasis which is keeping the internal conditions constant. Summary. How do materials get across a cell's membrane. ?. It depends on the type of substance. Summary. Non-polar materials or hydrophobic materials . do. cross easily, especially if small. Ex – CO. . Cell Structure. Enormous variety in the size and shape of different cells. Smallest cells belong to group of . organisms. . Mycoplasma. Only about 0.2 µm in diameter. So small that often beyond the limit of resolution of light microscopes. Cell Membrane and Cell Wall:. . ALL. . cells have a . cell membrane. made of . proteins. and . lipids. . Cell Membrane. lipid bilayer. protein channel. protein . pump. Layer 1. Layer 2. SOME. cells have cell membranes . Cell Membrane and Cell Wall:. . ALL. . cells have a . cell membrane. made of . proteins. and . lipids. . Cell Membrane. lipid bilayer. protein channel. protein . pump. Layer 1. Layer 2. SOME. cells have cell membranes . All text comes from:. Membrane Function Part 1, . by W.R. Healy, K.N. Prestwich, and J. . Rymer. . © 2010. What is a model?. Models are . conceptual representations used to explain and predict phenomena. . Structures, Functions and Organelle Relationships. p.50-50 in textbook. Animal Cell. Plant Cell. Cell Membrane & Cell wall. The cell membrane (plasma membrane) creates a cell boundary and helps to regulate the transport of molecules in and out of the cell (in plant & animal cells). Notes – Membrane Structure and Function Check In 1. What is an enzyme ? 2. What do they do? Homework Study for your test, now on Friday Oct. 5 . You may want to make flashcards and save the flashcards for your final exam. I can compare functions of plant and animal cell structures (organelles) GLE 4. “Cells, cells, they’re made of organelles..try to pull a fast one, the cytoplasm gels”. youtube Cell Rap. The Cell . TECHNOLOGY. PRESSURE DRIVEN MEMBRANE PROCESS. Various pressure-driven membrane process can be used to : . 1. Concentrate . 2. Purify a dilute (aqueous or non aqueous). THE PARTICLE OR MOLECULAR SIZE AND CHEMICAL PROPERTIES . Here are major advantages of steel structure building including costing, safety, designs and uses. Explore here!