1.1 Studying the Structure of Cells In 1665‚ English scientist Robert Hooke became the first person to study cells Cell Structure Nucleolus: Makes Ribosomes‚ which help to make proteins Nuclear Membrane: Protects the contents of the nucleus Nuclear Pores: Allow materials‚ such as ribosomes‚ in and out of the nucleus |Light Microscope |Electron Microscope | |Uses light source |Beams of electrons
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Text 2 The Great Wall of China‚ known as the ‘Long Wall’ in Chinese‚ is the longest man-made structure in the world‚ stretching across northern China‚ from Shanhaiguan in the east to Lop Nur in the west. It is said that the work and materials required to build the Great Wall was equal to 30 great pyramids in Egypt‚ and that about 2 to 3 million people died while building it. The wall’s history began about 2‚200 years ago‚ when a Chinese leader‚ Emperor Qin‚ formed seven groups of Chinese
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Cell Organelle Worksheet Organelle Nucleus Where found (plant/animal/both) In animals it’s in the center of the cell while in plants it’s found in the cytoplasm. What it does in the cell (functions) It maintains the integrity of the genes and controls the activities of the cell. Something that performs the same function in the “real world” It works like a CPU sending out messages. Organelle Nucleolus Where found (plant/animal/both) For both animal and plants it’s within the nucleus of the
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Chapter 3 Cell Structure and Function Section 3.1: Cell Theory: Cells are the smallest building unit of living organisms that can carry out all processes required for life. Almost all cells are too small to see without the aid of a Microscope. Although glass lenses used to magnify images for hundreds of years‚ they were not enough to reveal individual cells. The invention of Compound microscope was in the late 1500s by the Dutch eyeglass maker Zacharias Janssen. In 1665‚ the English scientist
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of the Cell Overview: The Importance of Cells • All organisms are made of cells. o Many organisms are single-celled. o Even in multicellular organisms‚ the cell is the basic unit of structure and function. • The cell is the simplest collection of matter that can live. • All cells are related by their descent from earlier cells. Concept 2 Eukaryotic cells have internal membranes that compartmentalize their functions Prokaryotic and eukaryotic cells differ
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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 Transport Mechanisms Essay There are two methods of moving molecules across the cell membrane‚ passive transport and active transport. Passive transport doesn’t use energy‚ while active transport does use energy. Passive transport allows molecules to move on their own according to natural laws of physics. The three types of passive transport mechanisms include diffusion‚ osmosis‚ and facilitated diffusion. Diffusion is the movement of materials from an area of most concentrated to
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Cell Fractionation * Cell Fractionation: takes cells apart and separates the major organelles and other subcellular structures from one another. * Tissue cells are the first one to be homogenate or broken apart. * Plasma membranes are broken up so that there internal contents spill out and mix together and this is called homogenate. * Homogenate is in spun in a higher rate of speed in a process called centrifugation. And that speed can vary that why it’s called differential
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A Cell Compared to a Hospital Cameron Browne The main organelle is the nucleus. I think the nucleus is like the hospital administration because the nucleus is the core of the cell that handles everything‚ and the hospital administration handles everything that goes on in the hospital. Without the “cores” for both the hospital and the cell‚ neither could properly functions. The nucleolus is the center of the nucleus‚ and it basically sends out all of the other organelles that work within the
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Organelle |Function |Location | | |Cell (plasma) membrane |Composed of proteins and a bilayer of lipid. |Outermost boundary of cell (animal) | | |Holds the contents of the cell in place. | | | |Regulates the movement of materials into and out of the cell using the |
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