el A.) Cell theory : 1.) All organisms are made of cells. 2.) All existing cells are produced by other living thing. 3.) The cell is the most basic unit of life. B.) Contributors to the Cell Theory: People | Information | Hooke | He was the first to identify cells and he also named them. | Leeuwenhoek | He made better lenses so he observed cells in greater detail. | Schledien | He was the first to note that plants are made of cells. | Schwann | He concluded that all living
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Chapter 6: A Tour of the Cell Cell fractionation – cells are taken apart using a centrifuge (differential centrifugation) and separated into their sub cellular structures Point of Difference | Eukaryotic | Prokaryotic | Shape/Size | Larger | Smaller | Complexity | Membrane bounded organelles | No membrane bound organelles | Nucleus | Bounded membrane with DNA | DNA in a region (nucleoid) | Kingdom | Plants‚ animals‚ fungi‚ protists | Bacteria and archaea | Reproduction | Sexual reproduction
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Cell City Cell City A cell is like a city. They both have parts that play different roles. A cell is microscopic that has organelles‚ and a city has different services. Keeping them both running smoothly and orderly. As a result they both survive and grow. There’re a lot of different organelles in a cell that are similar to a city for example the cell membrane borders and protects the cell it’s role is letting certain things in and out of the cell in the same way a border in a city does. Another
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Cells do everything from providing structure and stability to providing energy and a means of reproduction for an organism. There are many professions that have jobs like the organelles in a cell. One example is a Prison. A prison is a clear representation of a cell because all the organelles have a function that is tantamount to a prison. Also it is logical because each function have a function that relates to the jobs found in a prison. The Nucleus in a cell controls everything in the cell
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Cell: The cell is the basic structural‚ functional and biological unit of all known living organisms. Cells are the smallest unit of life that is classified as a living thing‚ and are often called the "building blocks of life". Discoverer: The cell was discovered by Robert Hooke in 1665. The cell theory‚ first developed in 1839 by Matthias Jakob Schleiden andTheodor Schwann‚ states that all organisms are composed of one or more cells‚ that all cells come from preexisting cells‚ that vital functions
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Cell Specialisation All cells are designed to perform a particular job within an organism‚ that is‚ to sustain life. Cells can become specialized to perform a particular function within an organism‚ usually as part of a larger tissue consisting of many of the same cells working together for example muscle cells. The cells combine together for a common purpose. All organisms will contain specialised cells. There are hundreds of types of specialised cells. Below is listed some of the major ones
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biology‚ cell theory is a scientific theory that describes the properties of cells‚ which are the basic unit of structure in all organisms and also the basic unit of reproduction. The initial development of the theory‚ during the mid-17th century‚ was made possible by advances in microscopy; the study of cells is called cell biology. Cell theory is one of the foundations of biology.The observations of Hooke‚ Leeuwenhoek‚ Schleiden‚ Schwann‚ Virchow‚ and others led to the development of the cell theory
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structure of these cells is a flying disk shaped like a donut‚ this is so maximum haemoglobin can be carried allowing maximum amount of oxygen to be transported. Sperm cells A sperm cell is the male reproductive cell that carries the male portion of chromosomes and deoxyribonucleic acid (DNA) information to be fused with the female egg or ovum. The sperm cell carries various amount of heredity information inside the cell nucleus. There are various ways in which sperm can be transmitted to the
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STUDY GUIDE WITH CELL QUIZ Cell wall: Cell membrane: All cells have cell membrane Allows only essential things to come in. Double layer of lipids. Double layer=bilayer Golgi body Process and package macromolecules There is a cis end and a Trans end. Cells secrete things that have been packages from apparatus. Modify by adding carbs and phosphates. Imports substances Endoplasmic retulum Ribosome Cytoplasmic granules-small particle that floats in cytoplasm Made of ribosomal DNA and
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Cell Unit Notes I. Life Processes - What makes something living? A. Biotic: Having life’s conditions Abiotic: Not having life’s conditions Homeostasis: The condition of maintaining a constant internal environment in living organisms. B. Characteristics of living Organisms (LIFE) 1. Nutrition - Food for energy and body (cell) repair and development 2. Transport - Move materials were needed in organism 3. Respiration - Able to generate energy for life processes
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