• Study cell shape, contents, and wall structure, the relation of cells to one another for intact tissues, the presence of intercellular connections via pits, and the presence or absence of intercellular spaces. The cell walls and air spaces constitute the Apoplast. The Plasmalemma and all within it constitute the Symplast.
  • These cell names all start with "OSTEO" because that is the Greek word for bone. OSTEOCLASTS are large cells that dissolve the bone. They come from the bone marrow and are related to white blood cells. They are formed from two or more cells that fuse together, so the osteoclasts usually have more than one nucleus.
  • Plant cells have a regular shape to aid in their structure and support. A plant cell is rigid so that the plant may stand upright. Animals have an irregular, flexible shape to allow for movement. B. CELLS WITH CHLOROPLASTS. 1 What is the shape of the chloroplasts in the Elodea cells? The chloroplasts are round in shape.
Unicellular protists are a single cell. Colonial protists are a mass of cells that move as one body, but remain individual cells. They usually have flagella. Filamentous protists are multiple cells joined end to end and are not motile. 1. Answer the following: a.) Describe the shape of the specimen. b.)
Jul 18, 2014 · The cell membrane is rather fluid but also slightly rigid. This allows the cell to change shape but it cannot change shape very much. This membrane is called the fluid mosaic model as it is a mixture of phospholipids, cholesterol, proteins and carbohydrates. Most of the membrane is composed of phospholipid molecules. These allow the membrane to be rather fluid. Embedded in this membrane are ...
The three principal shapes associated with epithelial cells are—squamous, cuboidal and columnar. Squamous epithelium is composed of cells that are wider than their height (flat and wide). Cuboidal epithelium is composed of cells whose height and width are approximately the same (cube shaped).
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  • Describe the shape of the spirogyra cells

    May 13, 2008 · The cells have eyespots, more developed near the anterior, which enable the colony to swim towards light. Spirogyra is a genus of filamentous green algae of the order Zygnematales, named for the helical or spiral arrangement of the chloroplasts that is diagnostic of the genus. Basic Microscopy 1. Describe the shape of the Spirogyra cells. Which cellular structure gives rise to this shape? Spirogyra - cylinder or ribbon like shape. Maintains Cell shape Controls position of organelles within the cell by anchoring them to the plasma membrane Involved with the flow of the cytoplasm, known as cytoplasmic streaming Anchors the cells in place by interacting with extracellular elements 38. There are three main types of fibers that make up the cytoskeleton. Name them. A drop of water containing a strand of the green algae, Spirogyra, and some free living aerobic bacteria were mounted on a microscope slide. The slide was then illuminated with light which was split into its constituent The pancreas serves as the most vial organ in the digestive process for producing and secreting enzymes needed for the digestion of chyme and the prevention of cell damage due to pH. In addition to the pancreas secreting into the duodenum, bile, which is stored in the gall bladder and produced by the liver, is secreted as well. 3) The inside of the cell called the cytoplasmic region. This region includes the nucleoid, cytoplasm, and ribosomes. Eukaryotic Cells - These cells are typically a lot bigger and more complex than prokaryotic cells. They have a defined cell nucleus which houses the cell's DNA. These are the types of cells we find in plants and animals. The basal body and hook anchor the whip-like filament to the cell surface. The basal body consists of four ring-shaped proteins stacked like donuts around a central rod in the cell envelope. The inner rings, associated with the plasma membrane, are the flagellar powerhouse for activating the filament. In this lab we looked at many different organisms from a few of the kingdoms and we observed their shape, colour, and how they moved. We compared many of the organisms to each other and took note of certain things that set them apart from one another such as the fact that many protists can photosynthesize (they are green) and organisms, such as the Daphnia, eat protists. In contrast to low phenotypic and high genetic variability in Spirogyra, the genus Staurastrum – one the most species-rich genera within the Desmidiaceae comprising around 700 species – showed great variability of morphological characters such as cell shape, size or cell wall ornamentation. The last arrangement occurs when the cells divide along random planes, and as one might guess, yields a random arrangement of the cells. The last recognized form of bacteria is known as the spiral, which occurs in three distinct sub-forms. The first one is a called a vibrio, in which cells are characterized by a comma shaped rod. ADVERTISEMENTS: The following points highlight the top six experiments on osmosis in plants. Some of the experiments are: 1. Demonstration of the Phenomenon of Osmosis 2. Demonstration of Osmosis by Osmoscopes 3. Demonstration of Plasmolysis and Determination of Isotonic Conc. of the Cell Sap 4. Determination of Osmotic Pressure of Integrated Plant Tissues and Others. […] See full list on biologywise.com These cells are cuboid in shape and have a spherical nucleus. These cells are present in the exocrine gland of the pancreas and the lining of kidney tubules. As they are located in the pancreas and kidney tubules, they help in absorption of nutrients as well as secretion of hormones, sweat, wax, digestive enzymes and even milk. Each is an individual bell-shaped cell sitting atop a long stalk. [Close-up of the bell-shaped parts of several Vorticella. Wider view of several Vorticella near a few strands of spirogyra.] Take advantage of the information and facilities that help shape the world of those who have lived in the community for a long time. Read the local newspaper (and the alternative paper, too, if there is one), listen to local radio, watch local TV, listen to conversation in cafes and bars, in barbershops and beauty shops. FIGURE 1-2A and B Pyramidal cells. Pyramidal cells (depicted somewhat realistically in A and iconically in B) have a cell body shaped like a triangular pyramid, an extensively branched spiny apical dendrite, shorter basal dendrites, and a single axon emerging from the basal pole of the cell body. The majority of the neurons in the labeled with the parts of the cell to identify the same parts on the enlarged poster of the animal cell that is not labeled. 13. The other cooperative group will place and paste the parts of the plant cell on the enlarged poster of the plant cell using the small labeled picture of the plant cell as a guide. 14. As the name implies, the cells form long filaments instead of colonies. Filamentous algae can also be microscopic, such as Spirogyra or Klebsormidium, or macroscopic, such as members of the Cladophoras. Each cell will have its own cell wall and a second cell wall allowing it to interact with other cells in the filament. The retina contains the cells that sense light (photoreceptors) and the blood vessels that nourish them. The most sensitive part of the retina is a small area called the macula, which has millions of tightly packed photoreceptors (the type called cones). The high density of cones in the macula makes the visual image detailed, just as a high ... It gives mechanical support to the cells. Vacuoles- Although this organelle is not exclusive in plants. But plants have very large vacuoles compared to animal cells. c.) Centrioles , Lysosomes. Q2. Cytoskeleton : Keeps the shape of the cell and provide the function of each structure. Nucleus : is the hub of the cell. It stores genetic information. The cells of protists are among the most elaborate and diverse of all cells. Most protists are microscopic and unicellular, but some true multicellular forms exist. A few protists live as colonies that behave in some ways as a group of free-living cells and in other ways as a multicellular organism. The algae possesses a spiral shaped chloroplast, which is clearly visible in the cell. The image of Spirogyra is taken from a permanent slide. Several pictures were stacked and the contrast was enhanced. Spirogyra is the genus name of a fresh water algae, of which there are over 400 individual species.In this lab we looked at many different organisms from a few of the kingdoms and we observed their shape, colour, and how they moved. We compared many of the organisms to each other and took note of certain things that set them apart from one another such as the fact that many protists can photosynthesize (they are green) and organisms, such as the Daphnia, eat protists. 1) Cells are separated by large amounts of extra-cellular substance or matrix 2) Cells interspersed in matrix of Connnective Tissue 3) Matrix a. holds and surrounds specialized cells b. produced by the cells c. can be fluid, gel-like or solid 4) scattered in the matrix are thread-like microscopic fibers a. collagen: strong and wavy. Describe the shape of a blood cell. Composition of Blood: The blood consists of the formed elements (red blood cells, white blood cells, and platelets) suspended in the blood plasma. The retina contains the cells that sense light (photoreceptors) and the blood vessels that nourish them. The most sensitive part of the retina is a small area called the macula, which has millions of tightly packed photoreceptors (the type called cones). The high density of cones in the macula makes the visual image detailed, just as a high ... Asexual reproduction in spirogyra involves the shape of akinetes, aplanospores, or azygospores/parthenospores. During critical circumstances, some types of spirogyra form thick-walled resting spores called akinetes. Sexual reproduction in Spirogyra can be of two types: scalariform conjugation and lateral conjugation.How would you describe the shape of the histogram? Bell-shaped: A bell-shaped picture, shown below, usuallypresents a normal distribution. Bimodal: A bimodal shape, shown below, has two peaks. This shape may show that the data has come from two different systems. If this shape occurs, the two sources should be separated and analyzed separately.
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Most plant cells have a single vacuole that takes up much of the cell. It helps maintain the shape of the cell. Cell wall (plant) A thick, rigid membrane that surrounds a plant cell. This layer of cellulose fiber gives the cell most of its support and structure. The cell wall also bonds with other cell walls to form the structure of the plant.

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  • In a mathematical sense, they are always 'closed generalized cylinders' and they are usually straight ('right') but the cross section of the cylinder can vary from circular to elliptical to spicular to complex lobed shapes like the Hydrosera cell shown above. The shape is maintained faithfully, whatever the environmental conditions, because the cell wall contains a large proportion of hard, brittle silica, which is partially hydrated [(SiO 2) m.nH 2 O] and non-crystalline. Basically, diatoms ...
  • Jan 15, 2020 · Bacterial morphology (size, shape and arrangement of bacterial cells) is one of the mostly used feature for the differentiation of various bacterial species. However pleomorphic bacteria can assume several shapes, following are the three basic bacterial shapes:

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The Spirogyra filament is very slimy due to the presence of mucilage sheath that lines the whole filament. The mucilage often holds the filaments together in a matted blanket. Each un-branched filament of Spirogyra consists of a number of elongated cylindrical cells of similar type joined end to end. The terminal cell is dome-shaped.

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  • Aug 02, 2014 · I like the organic look and called it Spirogyra as it reminds me of cells under the microscope in school biology classes! More thoroughly twisted canes take on a marbled, mineral look. You don't need much of each colour and it's dead easy to do, so it's a fun way to use up leftover clay after a project.
  • The last arrangement occurs when the cells divide along random planes, and as one might guess, yields a random arrangement of the cells. The last recognized form of bacteria is known as the spiral, which occurs in three distinct sub-forms. The first one is a called a vibrio, in which cells are characterized by a comma shaped rod.

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In this animated object, students observe how ATP energy is used to move substances across the cell membrane from an area of lower concentration to an area of higher concentration and when something too large needs to get in or out of a cell.

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cell membrane Let only certaint things into the cell. To protect the cell from it's surroundings. Both eukaryotic and prokaryotic cells have the cell membrane. cytoplasm Gives cell shape. In both eukaryotic and prokayotic cells. nucleus The control center of a cell. In eukayotic cells. chloroplast Chloroplast make the food for the plants.

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The lens of the eye is located directly behind the pupil. The lens bends light coming into the eye to help focus it on the retina. It changes shape to help the eye focus to see objects clearly at near. The lens is suspended from the wall of the eye by many small fibers (zonules) that attach to its capsule. Ciliary Body:

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Colony Shape: It includes form, elevation, and margin of the bacterial colony. Form of the bacterial colony: – The form refers to the shape of the colony. These forms represent the most common colony shapes you are likely to encounter. e.g. circular, irregular, filamentous, rhizoid, etc.

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Feb 16, 2011 · Epithelial cells come in different shapes depending on where in the body they're found. These shapes are called squamous, cuboidal, columnar, and ciliated columnar. Squamous epithelial cells are flat and are usually found lining surfaces that require a smooth flow of fluid, such as your blood vessels.

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The Solutions & Transport Through Membranes Page! A solution is a mixture of solute(s) in a solvent. A solvent is generally thought of as the liquid in which something else is dissolved (eg.

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