Micro 01-28-08 - Active Transport vs Facilitated Diffusion...

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Whitney Barter R 1, 2, 4, 6, 11 1/28/08 1. Diagram each of the following flagellar arrangements. a. Lophotrichous b. Monotrichous c. Peritrichous 2. Endospore formation is called sporogenesis . It is initiated by a difficult environment for growth . Formation of a new cell from an endospore is called germination. This process is triggered by a good environment for growth. 4. Match the structures to their functions. Cell Wall Protection from osmotic lysis Endospore Resting Fimbriae Attachment to surfaces Flagella Motility Glycocalyx Attachment to surfaces Protection from phagocytes Pili Transfer of genetic material Plasma Membrane Cell wall formation Selective permeability Ribosomes Protein Synthesis 6. Compare and contrast the following: Simple Diffusion vs. Facilitated Diffusion: Simple diffusion does not require any help with the movement of substance to achieve equilibrium. Facilitated diffusion does require help in the form of transport proteins to achieve equilibrium.
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Unformatted text preview: Active Transport vs. Facilitated Diffusion: Both require help of transport proteins, but in active diffusion the cell must expend energy because substance is moving from low to high concentration (against gradient). In facilitated diffusion the cell expends no energy because substance are moving from high to low concentration (with gradient). Active Transport vs. Group Translocation: Active transport simply moves materials across membrane, while group translocations modifies the chemicals prior to crossing the membrane. Both forms of transport utilize energy. 11. Match the following characteristics of eukaryotic cells with their functions. Pericentriolar Material - Microtubule formation Chloroplasts - Photosynthesis Golgi Complex - Secretion Lysosomes - Digestive enzyme storage Mitochondria - Respiration Peroxisomes – Oxidation of fatty acids Rough ER – Protein Synthesis...
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Micro 01-28-08 - Active Transport vs Facilitated Diffusion...

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