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VOCAB Chapter 7
VOCAB Chapter 7

... Pressure exerted against a semi-permeable membrane caused by water moving by osmosis ACTIVE TRANSPORT: Process that REQUIRES ENERGY to move molecules across a cell membrane against a concentration gradient (moves molecules from lower concentration → higher concentration) PASSIVE TRANSPORT: Process t ...
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... This is a large internal compartment of the cell that stores water, ions, nutrients, and waste. It also helps the plant cell keep its shape by filling up much of the empty space in the cytoplasm. ...
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... D. Cell survival depends on balancingwater uptake and loss. a) Cells lacking cell walls (as in animals) are isotonic with their enviroments or have adaptations for osmoregulations. Figure 8.10 E. Specific proteins facilitate the passive transport of selected solutes. a) In facilitated diffusion, a t ...
Lecture 10: Introduction to Bacteria (Structure, Growth
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... held from the sensor surface by its surface appendages. In this example, a “bold” bacterium, completely devoid of surface appendages, was also investigated and there was a clear difference in the response comparing the bold bacteria with the ones with appendages. FIGURE 1. Bacterial bond maturation, ...
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... 100 - This is what telophase looks like. (Draw it) 200 – This is what anaphase looks like. (Draw it) 300 – This is what metaphase I looks like. (Draw it) 400 – This is what prophase II looks like. (Draw it) 500 – This is what Meiosis I looks like. (Draw all of the phases) ...
Swimming behavior of the monotrichous bacterium Pseudomonas
Swimming behavior of the monotrichous bacterium Pseudomonas

... fluid dynamics (Berg, 1975; Ping, 2012). The cell dimension and flagellation are key parameters that determine output. The cells of P. fluorescens SBW25 are monotrichous as expected, but not in sensu stricto. More than 60% flagellated cells are with one flagellum (Fig. 1a inset). Among the 254 fluor ...
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Flagellum



A flagellum (/fləˈdʒɛləm/; plural: flagella) is a lash-like appendage that protrudes from the cell body of certain prokaryotic and eukaryotic cells. The word flagellum in Latin means whip. The primary role of the flagellum is locomotion but it also often has function as a sensory organelle, being sensitive to chemicals and temperatures outside the cell. Flagella are organelles defined by function rather than structure. There are large differences between different types of flagella; the prokaryotic and eukaryotic flagella differ greatly in protein composition, structure, and mechanism of propulsion. However, both are used for swimming.An example of a flagellate bacterium is the ulcer-causing Helicobacter pylori, which uses multiple flagella to propel itself through the mucus lining to reach the stomach epithelium. An example of a eukaryotic flagellate cell is the mammalian sperm cell, which uses its flagellum to propel itself through the female reproductive tract. Eukaryotic flagella are structurally identical to eukaryotic cilia, although distinctions are sometimes made according to function and/or length.
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