'Phagocytosis' diaporamas de présentation

Cells

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Chapter 2: Introduction to Cells

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Dynamic Defense System

Dynamic Defense System. Ch 43 Notes. Pathogens. Infectious Agents that cause disease Viruses, bacteria, protists and fungi may be pathogens Animals fight back using immune cells. Innate Immunity. Found in all animals Active immediately upon infection

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Innate Defenses

Innate Defenses. Surface barriers Skin, mucous membranes, and their secretions ________________________________________ to most microorganisms _________________________________________ is resistant to weak acids and bases, bacterial enzymes, and toxins

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MEMBRANE TRANSPORT

MEMBRANE TRANSPORT. LECTURE-----4 DR ZAHOOR ALI SHAIKH. MEMBRANE TRASPORT. Plasma membrane is selectively permeable that means it allows some particles to pass while other can not pass. Things which can pass through Plasma membrane easily are:

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BIOT 307: MOLECULAR IMMUNOLOGY

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Rate of Phagocytosis in Macrophages Stimulated by Astragalus membranaceus

Rate of Phagocytosis in Macrophages Stimulated by Astragalus membranaceus. Curtis Dobrowolski Department of Biology and Marine Science Jacksonville University. Introduction. Macrophages are the first line of defense in the human immune system Phagocytose

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Unit 5: Cell Membrane and Transport

Unit 5: Cell Membrane and Transport. Review. 1. D ifference between polar and nonpolar compounds? Give an examples. Polar dissolve in water, Hydrophilic, have one positive side and one negative side; Examples: water, sugars, ionic compounds, phosphate head of phosopholipid Nonpolar

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Facilitated Diffusion

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T Cell Phagocytosis

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Video 18.1 Chemotaxis of human neutrophils

Video 18.1 Chemotaxis of human neutrophils. Video 18.2 Phagocytosis of Escherichia coli by a neutrophil. Video 18.3 Phagocytosis of Candida albicans by a macrophage. Video 18.4 Macrophages attacking Leishmania. Video 18.5 Cytotoxic T lymphocyte attacks an influenza-infected cell.

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Active Transport

Active Transport. Molecule to be carried. Active Transport. moves molecules from low concentration to high a gainst a concentration gradient, requires ATP (energy), and may require transport proteins. Endocytosis & Exocytosis . Endocytosis Movement of large materials INTO the cell.

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Vesicular transport

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3.5 Active Transport, Endocytosis, and Exocytosis

3.5 Active Transport, Endocytosis, and Exocytosis. KEY CONCEPT Cells use energy to transport materials that cannot diffuse across a membrane. 3.5 Active Transport, Endocytosis, and Exocytosis.

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Large Central Vacuole/ Food Vacuole

Large Central Vacuole/ Food Vacuole. Aaron Miyamoto. Structure. Membrane enclosed sac filled with water, nutrients, waste Food Vacuole (animal cells)- formed through phagocytosis Large Central Vacuole (formed through combining of smaller vesicles). Function of Large Central Vacuole.

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Phagocytosis

Phagocytosis. An animation by Darcy C oombes. Bacterium/pathogen. Phagocyte.

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endocytosis osmosis passive transport hypertonic pumps simple diffusion sodium-potassium pump

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AMOEBA

AMOEBA. FLAGELLA. Classification: Animal-like Protist; Protozoan Habitat: fresh and salt water; decaying vegetation Symmetry: N/A Cellular Organization: Unicellular; Eukaryote Reproduction: Asexually; fisson

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LE Sander et al . Nature 000 , 1 -5 (2011) doi:10.1038/nature10072

Bacterial RNA is a vita-PAMP that accesses cytosolic receptors during phagocytosis and in the absence of virulence factors. LE Sander et al . Nature 000 , 1 -5 (2011) doi:10.1038/nature10072.

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