PPT-Membrane Structure and Function

Ch 12 Stryer Short Course Introduction to Membranes Lipid structure makes a bilayer Hydrophobic effect Noncovalent structure Fluidity of membrane liquid crystal Fluidity controlled by cholesterol tail packing. OCR AS Biology. Unit 1: Cells, Exchange and Transport. Learning objectives. To understand and discuss the basis of cell theory based upon milestones in cell biology. To carry out practical work on cell size and magnifications using a light microscope. 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. Image from: © Pearson Education Inc, Publishing as Pearson Prentice Hall; All rights reserved. Nucleolus. Nucleus. Nuclear envelope. Ribosome (attached). Ribosome (free). Cell Membrane. Rough . endoplasmic . 1.2 Ultrastructure of cells. Essential Idea. : Eukaryotes have a much more complex cell structure than prokaryotes. Nature . of science: . Developments . in scientific research follow improvements in apparatus—the invention of electron microscopes led to greater understanding of cell structure. (1.8) . Cytoplasm.  . Cytoplasm . material between plasma membrane& nucleus. site of most cellular activity. 3 elements. Cytosol. Organelles. Inclusions . Cytosol. . viscous, semitransparent fluid in which other elements in cytoplasm are suspended. 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. . XYZ Market report published by Value Market Research is an in-depth analysis of the market covering its size, share, value, growth and current trends for the period of 2018-2025 based on the historical data. This research report delivers recent developments of major manufacturers with their respective market share. In addition, it also delivers detailed analysis of regional and country market. View More @ https://www.valuemarketresearch.com/report/liquid-applied-membrane-market Section 3-2 Chapter 7. Phospholipid Bilayer. The membrane is composed of two layers of phospholipids . Phospholipids are . ampipathic. . Hydrophobic tail. Hydrophyllic. head. Selectively Permeable. 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). 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 . What is the plasma membrane?. A flexible boundary between the cell and its environment which maintains . HOMEOSTASIS. within the cell. **Remember that . HOMEOSTASIS. is a state of balance/equilibrium within the cell.. Cell Parts. Cells. – the basic unit of life. . Organelles. - small structures inside a cell with specific functions.. Analogy – City of Rocklin. Cell . Membrane/Plasma Membrane . Analogy – Rocklin city limits. Extended Learning — Activities and Projects1.Visit a laboratory for senior secondary students in your school orin a neighbouring school. Learn about the functioning of aunder the microscope.2.Tal