...A cell has many different parts. All the different parts have a job, and all the different parts work together to help the cell do its job. One part called the cell wall is very important to the cells ability to work. There are many different functions that the cell wall performs. It is important to know what the cell wall looks like. Who discovered it? Where is it found on the cell? What it is made of? How big is it? What types of cells have it? How many times it is found in the cell? The cell wall is an important part to the function of a cell. The cell wall has many important parts and uses. One of its main uses is to protect the cell. Another use is that it allows certain materials to move in and out of the cell. The way the cell wall allows materials to move in and out is with small holes called plasmodesmata. The plasmodesmata allow the transfer of nutrients, waste, and ions. The cell wall acts like a skeleton by helping the plant maintain its shape and sturdiness. Without a cell wall plants would not be able to keep their shape. The cell wall is made out of cellulose. One of the most abundant macromolecules on earth is cellulose. Cellulose is a type of sugar that is not used for energy but rather for structure. It does not dissolve in water and only cows and other herbivores can digest cellulose with cellulose polymers. Without the...
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...takes place. This paper shows how cellular concept has contrasting approach in India and Japan and also, it gives detailed information about cell and cellular layout. Also, it consists of problem identification in the existing layout, objectives and methodology followed to achieve the objectives .In India, few companies like TVS, Maruti etc. have implemented it and other few are in a way of implementation (like Mahindra & Mahindra). A “Cell” is a collection of dissimilar machines or processes, located closely together in a sequential operation manner and dedicated to a set of a similar part and product. Cell is that in which two or more machine should be arrange such that receiving and shipping should be present at same location. Each machine has fix position and dissimilar machines are arranged in a cell so, the layout is known as cellular layout. CMS emphasis on : 1)To reduce through put time of the component, 2)To increase the target of manufacturing component and completion of target as per demand, 3)To maximize manpower utilization, 4) To minimize space utilization, 5)To reduce investment per unit output, 6)To reduce manpower requirement, 7)To improve Material Flow Control, 8)Cell Design, 9)Design Standardization . 2. SIMULATION APPROACH 2.1 Issues related to CMS implementation Identification of part families Identification of cell equipment and allocation of families to...
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...Impact of Cell Phone’s Radio Frequency in Children Herzing University Saugat Basnet The development and use of mobile device services in the last decade have hugely increased the amount of radiofrequency electromagnetic wave (RF-EMW). High exposures towards radio frequency (RF) in our daily lives have raised concerns regarding the harmful effects on human health especially on children. Children with cell phone exposure have higher odds of migraines and headache-related symptoms than the one with no exposure. A great deal of scientific and public interest have focused on radio frequencies that alter the brain, somatic and germinal cells in children. Children should be very careful and guided by elders while using cell phones that produce a lot of harmful radio frequencies. Today cell phone is one of the inseparable parts of modern life. Each and every daily activity today is possibly accomplished by the aid of the cell phone. With its reference, we can say that cell phone directly and regularly comes in contact with the vital body parts like head and sense organs. As it comes in contact with vital organs, not immediately but after some long term exposure, it causes severe health problems and in children, it’s even more serious. Children are still developing mentally; therefore, radio frequency from cell phones has a greater effect on them than on adults. It is because children have growing body parts where cell multiplication is active. According to a study conducted by Sudan...
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...Tissues: An introduction Lab Report Part 1 This lab is divided into two different parts. Part 1 deals with the general characteristics of tissues, and part 2 asks you to interpret some photomicrographs taken of human tissue slides in our lab. Part one should be completed first, but you’ll probably get a lot of hints about the answers for part 2 if you’ve looked over the images and questions provided ahead of time to work on them. To do Part 1, download the following documents and have your textbook available. Part 1 Characteristics of tissues A. Epithelial Tissues What are five general characteristics which distinguish epithelial tissues? (1. Cellularity: tightly packed sheets of cells with little intercellular material between them 2. Basement membrane; the basal surface of ETs are anchored to underlying CT by a distinct basement membrane 3. Specialized contacts: tight junctions and desmosomes 4. Avascularity: contain no blood vessels; are nourished by nutrients which diffuse upward from underlying connective tissue through the basement membrane 5. Regeneration: high regeneration capacity due to rapid cell division ) Explain how the general morphology of epithelial cells may be deduced from the names of the epithelial tissues. (The names of the epithelial cells are characteristic of their structure: simple=single layer stratified=many layers squamous=flat cuboidal=cube shaped columnar=elongated ) Epithelial tissues specialized for secretion can be found...
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...The area in which this proliferation occurs is called the Progress Zone (PZ). The cells in this area are kept in a state of constant proliferation and are not differentiated. This means that the cells have not yet been specialized, or given a particular function. As the cells in the PZ rapidly proliferate, the cells along the side of the body in which limb buds are not present are dividing at a much slower rate. This results in an accumulation of mesenchymal cells in the primordium that are the start of the limb. As the mass of cells begins to transform into a limb, crucial structures are necessary to ensure proper growth and...
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...body, it's job is to communicate by sending messages and receiving them. The nervous system receives specific messages from the brain to then send off to a specific part of the body to perform a movement or task (Hillendale, 2014). There are two parts to the nervous system. These are called the 'Central Nervous System' (CNS) and 'Peripheral Nervous System' (PNS). The Central Nervous System consists of the brain and the spinal cord and the Peripheral Nervous System consists of the nerves out side the brain and spinal cord (Rayner, 2014). The peripheral nervous system is divided in to two parts called the 'somatic nervous system' and the 'autonomic nervous...
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...region of the head, as well as to morphological and functional differentiation of all organs are formed in the embryonic period. Further differentiation processes continue even after birth (postnatal period of development). Part of the embryo and fetus on whose head is referred to as cranial (head), the last part of the caudal (tail), the ventral side of the ventral and dorsal side of the dorsal. MAIN CHARACTERISTICS OF DEVELOPMENT The main characteristics of development includes processes that occur in the process of creating every tissue and organ in the human body. This includes the following processes: 1. The proliferation - increasing the number of cells that occurs as a result of a number of asymmetric cell division by division (when the mother of one daughter cells are formed identical to the mother cell and daughter cell that directs the differentiation); 2. Growth - weight gain and the size of the formed tissue, organ, or whole organism, which occurs as a result of proliferation, ie. creating a large number of cells and the formation of a large amount of extracellular matrix; 3. Determination - predestination cells to be under the influence of inductive factors differentiate into specific cell types (in the body there are about 200 types of cell phenotype). Determination is a restriction...
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...Crystal Structures The regular geometric shapes of crystals reflect the orderly arrangement of the atoms, ions, or molecules that make up the crystal lattice. Many different types of compounds will form crystals when solid; metals and ionic compounds are almost always in solid crystal form at room temperature. Only a few covalently bonded compounds are solids at room temperature. Of those covalent compounds that are solid, not all form crystals. The ones that do not are referred to as amorphous. Many covalently bonded compounds which are liquids or gases at room temperature will crystallize at lower temperatures (i.e. water forming ice). In this experiment, you will be using styrofoam spheres as models of atoms or ions to gain insight into the ways in which metallic or ionic crystals are formed. You will investigate three basic crystal structures which can form if all of the particles are the same size, as would happen in a pure metal: simple cubic (SC), body-centered cubic (BCC), and face-centered cubic (FCC). structures. Using the styrofoam models, you will determine the number of nearest neighbors (the coordination number) of the particles in each of these structures. In a simple crystal structure, all atoms or ions of the same type should have the same coordination number; in other words, any atom or ion of the same element is identical with respect to size and position relative to its neighbors. When ions form crystals, the cations and anions are...
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...An important organ that is part of lymphatic system. It is an internal body organ in the abdomen just underneath the left rib cage. Spleen lies between fundus of stomach and diaphragm. In addition, “it is the largest collection of reticuloendothelial cells in the body and is composed of sponge like tissue of two types: red pulp, which is the dark reddish brown substance filling the interspaces of the sinuses of the spleen, and white pulp, which consists of sheaths of lymphatic tissue surrounding the arteries of the spleen” (Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, 2003). The spleen is not part of the digestive system however is connected to the blood vessels of both the stomach and the pancreas. Spleen...
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...is served by a local DC. Each region follows a periodic review policy where an order is placed every 6 days with a replenishment lead time of 5 days. Given a reorder interval of 6 days, the batch size is 6 days of demand. The safety inventory in each location (for each product) is calculated using Equation 12.18. The cycle inventory and safety inventories are evaluated in Cells C43:G48. They are converted into days of demand in Cells K43:O48. It is interesting to get the class to observe that the days of safety inventory held is proportional to the coefficient of variation calculated in Cell C25:G27. The total cost of the status quo is evaluated in Cell H67 to be $960,326. Impact of Centralization The worksheet Central vs. Local details the inventory and financial impact of centralizing all inventory in an NDC. The mean and standard deviation of centralized demand is obtained in Cells J16:J21 using Equation 12.13. This is used to evaluate the cycle and safety inventory (using Equation 12.18) in Cells J35:J40. The costs from centralizing each part type is obtained in Cells J56:J58 with the total cost in Cell J59 of $755,164 for the case when demand across all regions is independent. The net savings from centralization are...
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...centre of the cell, it has coded instruction that enables it to make specific protein; this is how ribosomes are made here. This is bounded by a double membrane; the cytoplasm is like material within the nucleus this is called the nucleplasm (Rowland, as biology, 2008). The nucleus stores, replicates and decodes DNA. , which gives each cell it unique characteristics; this means liver cells are is different from muscle cell and is different from a fat cell. It is also the largest and most prominent organelle in the cell; it is a specialized subunit in the cell that has a specific function. As the nuclear envelope isolates and protects a cell’s DNA from various molecules that might damage the structure or its processing this when DNA is synthesized special RNA (Parker and Honeysett, biology, 2008). The nucleolus produces ribosome’s, which move out of nucleus to a position on the rough endoplasmic reticulum where they are critical in protein synthesis. Endoplasmic Reticulum which has a system of complex tunnels that spread throughout the cell, this part of the cell which is suspended. This helps food to be consumed and transform into energy for the cell functions. It has elaborate system which is called endoplasmic reticulum (Rowland, as biology, 2008); this is interconnected with the lining membrane with nuclear envelope. This given to the fact that is referred to as called cytosol, mean cell substance which is a grey colour when looked at it. As it is made up of two parts the ectoplasm...
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...the plant cell that's different from the animal cell. This paper will be diving deeper into each individual aspect and provide more information. First, Aspirin Is A drug that is supposed to to reduce pain and fever from infections. Aspirin is also an acid called acetylsalicylic, this as well helps with the irritation of cuts or illnesses. Aspirin interferes with blood clots, preventing anything bad to happen to them. Aspirin is a powder with the chemical formula C9H8O4. Aspirin...
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...plant cells, they use photosynthesis Mitochondrion are found in both, the use chemicals to breakdown food and convert it into usable compounds They both convert things into energy Cell wall vs plasma membrane: Cell wall is only found in plants, it is rigid and protects the plant cell Cell membrane are in. Oth,bit is semipermeable and flexible Both protect cell and both regulate what goes in and out of the cell Rough vs smooth er: Rough er is speckled with ribosomes and assembles proteins Smooth er makes lipids, detoxifies drugs and makes membranes Both transport and produce domppunds important to the cell Cytosol vs cytoplasm: Cytosol is only the liquid part of the cytoplasm Cytoplasm includes cytosol but is also the organelles and dissolved nutrients They are both part of the cytoplasm and both are the liquid part Nucleus vs. nucleolus: Nucleolus does not contain DNA or chromosomes and only makes ribosomes Nucleus contains the nucleolus and the DNA also gives instructions to the cell Both part of the nucleus Lysosomes vs food vacuoles: Lysosomes breakdown food and unusable organelles Food vacuoles store food before the lysosomes start to break it down Both do something with food Cytoskeleton vs micro tubules: Micro tubules are the hollow like structures that are part of the cytoskeleton, they are important for cell division The cytoskeleton as a whole supports the cells structure and holds the organelles in place helps move cell and parts...
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...Prokaryotic and Eukaryotic Cells | | Part of our definition/description of what it means to be a living thing on Earth includes the assertion that living things are made of cells and cell products. In other words, we consider the cell to be a pretty fundamental structural aspect of life. Cells in our world come in two basic types, prokaryotic and eukaryotic. "Karyose" comes from a Greek word which means "kernel," as in a kernel of grain. In biology, we use this word root to refer to the nucleus of a cell. "Pro" means "before," and "eu" means "true," or "good." So "Prokaryotic" means "before a nucleus," and "eukaryotic" means "possessing a true nucleus." This is a big hint about one of the differences between these two cell types. Prokaryotic cells have no nuclei, while eukaryotic cells do have true nuclei. This is far from the only difference between these two cell types, however. Here's a simple visual comparison between a prokaryotic cell and a eukaryotic cell: This particular eukaryotic cell happens to be an animal cell, but the cells of plants, fungi and protists are also eukaryotic. Despite their apparent differences, these two cell types have a lot in common. They perform most of the same kinds of functions, and in the same ways. Both are enclosed by plasma membranes, filled with cytoplasm, and loaded with small structures called ribosomes. Both have DNA which carries the archived instructions for operating the cell. And the similarities go far beyond the visible--physiologically...
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...Cancer is a disease in which cells grow out of control and invade, erode, and destroy normal tissue. It has sadly affected many people. Damaged genes are the cause of this. Since mitosis - a process for cell division - and the cell cycle are controlled by genes, having damaged genes can cause the cell to go wrong. If it starts in just a single cell, it can replicate itself to make new cells that duplicate. In the cell cycle, cells can be in the G1 or G0 stage. Often cells leave G1 and enter G0 where they carry out their functions then die out or re-enter the cell cycle if needed. It is usually a balance. Contrary, some cells can not enter G0 and are destined to repeat the cell cycle indefinitely. These are cancer cells. As the very early damaged...
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