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protist
protist

... grow on the surface of some protists. • Protists with cilia are called Ciliates. • Cilia cover the surface of the cell and move a protist through water. • Ciliates reproduce asexually, but they can exchange some genetic material through a process called conjugation. ...
animal cell ws
animal cell ws

... nucle ol us – composed of protein and RNA; involved in ribosome production (dark pink) cyt os kel et on – provides strength and shape to the cell; network of protein fibers (orange) en dopl asmic retic ulum (E R) – passageways that transport proteins within the cell (purple) mitoch on dri a – produc ...
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Bardet-Biedl Syndrome and the Neuronal Primary Cilium Scott T
Bardet-Biedl Syndrome and the Neuronal Primary Cilium Scott T

... oligodendrocytes, as well as for playing a wide range of other roles in neural development by regulating transcription of specific genes. Similarly, PDGF receptors are localized to the primary cilium and signal through cytoplasmic kinases like Akt and MAP kinases (see Ch. 25). PDGF signaling may be ...
Primary cilia of human endothelial cells disassemble under laminar
Primary cilia of human endothelial cells disassemble under laminar

... also was located in primary cilia of 10% of ciliated HUVEC, where it was found in particles along the cilia that resembled those stained by hisCMG-1Ab (Fig. 4, A and A’, insets; Fig. 4, B and B’). Therefore, PKD-1 elicits a response to mechanical stimuli only in a subset of the HUVEC expressing pri ...
Chromosomes - Spokane Public Schools
Chromosomes - Spokane Public Schools

... ● Somatic (nonreproductive) cells have two sets of chromosomes (DIPLOID) ● Gametes (reproductive cells: sperm and eggs) have half as many chromosomes as somatic cells ...
Organelles are small structures inside cells. They are often covered
Organelles are small structures inside cells. They are often covered

... All cells can be classified as either prokaryotic or eukaryotic. The main difference is that prokaryotic cells do not contain a nucleus or other membrane-bound organelles, while eukaryotic cells do. Both types of cells contain DNA and have ribosomes. Prokaryotic cells, like plant cells, contain a ce ...
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Chapter 6 Full PPT
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Cell Structure and Plasma Membrane Function Practice Questions

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What is a Protist?

... (photosynthetic) • Chlorophyll hidden by red and brown pigments. • Move by beating its two flagella. ...
Archaebacteria These unusual bacteria are genealogically neither
Archaebacteria These unusual bacteria are genealogically neither

... has a number of discrete subcellular structures. Its DNA, complexed with proteins, is organized into chromosomes within a membrane­ bounded nucleus. Mitochondria carry out cellular respiration; in a plant cell there are chloroplasts, which conduct photosynthesis. The Golgi apparatus is a secretory o ...
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7-2 Eukaryotic Cell Structure

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2.2 Cell Membrane and Transports

... Many polar and charged molecules, such as water, amino acids and sugars diffuse across the membrane with the help of protein complexes that span the membrane based on a concentration gradient from regions of high concentration to regions of low concentration. These transport proteins that extend thr ...
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... want to make a poster of a plant cell or an animal cell (for this assignment, each has the same number of organelles). The key to earning the maximum number of points for this assignment is to be as accurate as you can when depicting cell organelles, using as many careful 3-D drawings that you make. ...
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...  They accumulate in the host cell nucleus  Interestingly, some of them are enzymes capable of changing the phosphorylation state of proteins (kinases & phosphatases)  Their precise function remains to be determined but it appears that they modulate gene expression in the host cell and that their ...
Cells
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... 14. Cell #1 should have (lost ; GAINED; stayed the same) mass. 15. If osmosis was to occur in cell #2, which direction would most of the water be moving? (into /OUT OF) the cell. 16. Cell #2 should have (LOST ; gained; stayed the same) mass. 17. If osmosis was to occur in cell #3, which direction wo ...
Sites of Location of Ribosomes in the Bacterial Cell
Sites of Location of Ribosomes in the Bacterial Cell

... labeling close to the inner face of the cytoplasmic membrane of this wall-less bacterium. Labelling of EF-Tu copies distributed within the general cytoplasm of the cells was also observed, but less intense. After removal of the cytoplasmic membrane, the cells maintained their elongated shape; a cell ...
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Life in a Cell
Life in a Cell

... Cilia (row, row, row your boat) Other cells that move around do not have long flagella. Instead they have lots of little short hair-like appendages called cilia. The cilia usually cover the cell. Cilia are found mainly on animal cells but can occasionally be found on plant cells. Cilia move the cell ...
Chapter 4 - 4.2PowerPoint
Chapter 4 - 4.2PowerPoint

... 3.2 Cell Organelles Cells have an internal structure. Made of microtubules and Microfilaments. • Microtubules – hollow tubes that give cells shape. • Microfilaments – tiny thread like proteins that enable cells to move and divide. (important in muscle cell contraction an relaxation) ...
The Cell Membrane
The Cell Membrane

... Active Transport  Cells may need to move molecules against concentration gradient ...
The Cell - WordPress.com
The Cell - WordPress.com

... the cell is the basic unit of all living things, we need to explore what is found in and around the cell and how do they work. The various parts of the cell are referred to as organelles, which mean “little organs”. They function very much like our organs. It is important to recognize that the parts ...
Biological Kingdoms
Biological Kingdoms

... Fungi are a large group of eukaryotic organisms that includes such organisms as yeasts, molds, and mushrooms. Many fungi are multicellular, but some are unicellular, such as yeast. Some differences between fungi and other eukaryotes are at the cellular level. Fungal cells have cell walls that conta ...
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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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