Chapter 18. The Genetics of Viruses and Bacteria. Viruses and bacteria are the simplest biological systems. Bacterial cells are much smaller and simpler than those of eukaryotes Viruses are even smaller and simpler, lacking the structure and metabolic machinery of cells.
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Professor/ Raeissa Mohammad. Introduction to Histology and Cell Structure. Content & Objectives. In this lecture you are expected to learn: What is histology and how it is studied?
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Emergency Diseases / Highly Pathogenic Avian Influenza (HPAI). Andre F. Ziegler, DVM, MPVM, Dip. ACPV CVM 6880, Spring 2003. Reportable Avian Diseases in Minnesota. Highly Pathogenic Avian Influenza Velogenic / Exotic Newcastle Disease Other paramyxoviruses other than ND
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Section 1 Passive Transport Section 2 Active Transport. Chapter 5. Homeostasis and Cell Transport. Table of Contents. Explain how an equilibrium is established as a result of diffusion. Distinguish between diffusion and osmosis.
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Active Transport. Section 4-2. Some substances are transported against a concentration gradient. Facilitated diffusion moves sugars and amino acids across the cell membrane DOWN their concentration gradient.
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Microscope and Cells. Chapter 4. I. The Cell Theory. All living organisms are made up of cells Cells are the basic units of structure and function in living organisms. All cells come from cells that existed before them by cellular reproduction.
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Cell Organelles. Cell Membrane. Forms a protective barrier around the cell Made of a double layer of lipids Called phospholipids The head of the phospholipid is attracted to water, but the tail is repelled by water. Diffusion.
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UNIT 2:CELL STRUCTURE & FUNCTION/ CHAPTER 4. Reference Biology: The Unity and Diversity of Life, Tenth Edition, Starr & Taggart. Refresh your memory on the cell:. CELLS. Smallest unit of all living things. Differ in size and shape depending on its function. Organelles.
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Organelles that Store, Clean up, and Support. Organelles that store, clean up, and support. Vacuoles, Vesicles, Lysosomes , and the Cytoskeleton Vacuoles are large saclike structures that store materials like water, salts, proteins, and carbohydrates
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A cell is like a farm. Vesicles & Chloroplasts Brady Ludvik. Vesicles. A vesicle takes the nutrients form the Golgi Apparatus to the areas that need it such as the cell wall, cell membrane, or any other organelles that need it. . Vesicles.
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SECRETION OF PROTEIN. 1. Vesicle containing freshly synthesised protein pinches off. 2. Pinched vesicles join up to form Golgi apparatus. 3. Protein processed in the Golgi usually CHO added. R.E.R. 4. Vesicles with finished protein pinched off. 5. Vesicles move towards the cell membrane.
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Particle-Encapsulating Vesicles. Haim Diamant , School of Chemistry, Tel Aviv University, Israel.
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