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Cells: Agriculture’s Building Blocks
Cells: Agriculture’s Building Blocks

... • Animals and plants contain specialized cells, which vary in size and shape – Largest – ostrich egg – Smallest – some bacteria ...
Cells: Agriculture`s Building Blocks
Cells: Agriculture`s Building Blocks

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Cell Theory Learning Target: I can develop and use a model to
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Cell Membrane - Fall River Public Schools
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Sample APBio Exam1 - Bruce Rife`s Web Page
Sample APBio Exam1 - Bruce Rife`s Web Page

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... yeast, have only one cell. Other organisms, like you, are multicellular, which means they are made of many cells. In your case, many, MANY cells! Most of your cells have specific functions and a specialized structure. For example, a skin cell is different from a muscle cell or a kidney cell. Since c ...
Chapters 14 & 19
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...  Cell wall made of chitin  Multicellular but one group is unicellular  Yeast cells are unicellular  Do not move from place to place  Lack chlorophyll therefore they are heterotrophs  Obtain food by secreting digestive enzymes on whatever they grow on  Some live on dead organisms and some are ...
Cells and Organelles - Birmingham City Schools
Cells and Organelles - Birmingham City Schools

... • All living things are made up of cells. • Cells are the smallest working units of all living things. • All cells come from preexisting cells through cell division. ...
TI Education - Texas Instruments
TI Education - Texas Instruments

... yeast, have only one cell. Other organisms, like you, are multicellular, which means they are made of many cells. In your case, many, MANY cells! Most of your cells have specific functions and a specialized structure. For example, a skin cell is different from a muscle cell or a kidney cell. Since c ...
Chapter 4 - Warren`s Science Page
Chapter 4 - Warren`s Science Page

... through which ions can pass Some channels are always open Some channels have gates ...
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Cell wall



The cell wall is a tough, flexible and sometimes rigid layer that surrounds some types of cells. It surrounds the cell membrane and provides these cells with structural support and protection. In addition, the cell wall acts as a filtering mechanism. A major function of the cell wall is to act as a pressure vessel, preventing over-expansion when water enters the cell. Cell walls are found in plants, fungi and prokaryotic cells but not in mycoplasmas.The composition of the cell wall varies between species and may depend on cell type and developmental stage. The primary cell wall of land plants is composed of the polysaccharides cellulose, hemicellulose and pectin. In bacteria, peptidoglycan forms the cell wall. Archaean cell walls have various compositions, and may be formed of glycoprotein S-layers, pseudopeptidoglycan, or polysaccharides. Fungi possess cell walls made of the glucosamine polymer chitin, and algae typically possess walls made of glycoproteins and polysaccharides. Unusually, diatoms have a cell wall composed of biogenic silica. Often, other accessory molecules are found anchored to the cell wall.
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