Portfolio The Cell and Cell Theory [pic] The cell The word cell comes from the Latin word “cellula”‚ which means a small room. The cell is the smallest unit of a living organism‚ also known as “the building block of life”. Every living organism is consisted of a cell. There are bacteria (unicellular organisms)‚ and multicellular organisms. There are different types of cells‚ prokaryotic and eukaryotic cells. All cells come from preexisting cells. “Every cell is self-maintaining;
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Cell Structure - Cell Organelles 1. What is cell theory? Cell theory asserts that the cell is the constituent unit of living beings. Before the discovery of the cell‚ it was not recognized that living beings were made of building blocks like cells. The cell theory is one of the basic theories of Biology. 2. Are there living beings without cells? Viruses are considered the only living beings that do not have cells. Viruses are constituted by genetic material (DNA or RNA) enwrapped by a protein
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The CELL THEORY‚ or cell doctrine‚ states that all organisms are composed of similar units of organization‚ called cells. The concept was formally articulated in 1839 by Schleiden & Schwann and has remained as the foundation of modern biology. The idea predates other great paradigms of biology including Darwin’s theory of evolution (1859)‚ Mendel’s laws of inheritance (1865)‚ and the establishment of comparative biochemistry (1940). Ultrastructural research and modern molecular biology have
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background knowledge relating to the current cell theory‚ the differences between prokaryotes and eukaryotes‚ and the structures and functions found within cells. Once this knowledge is known‚ a person is then able to give their opinion in the debate. In the 1800s‚ the cell theory was developed. This theory states that cells are found in all living things making them the basic units of life and that all cells come from other cells. In order to be classified as a cell‚ the object in question must be able
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Weismann‚ who noted that two cell divisions were necessary to transform one diploid cell into four haploid cells if the number of chromosomes had to be maintained. In 1911 the American geneticist Thomas Hunt Morgan observed crossover in Drosophila melanogaster meiosis and provided the first genetic evidence that genes are transmitted on chromosomes. The term meiosis was introduced to biology by J.B. Farmer and J.E.S. Moore in 1905 Meiosis i/maɪˈoʊsɨs/ is a special type of cell division necessary for
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the power to uplift us. b) My interpretation of the poem is based on the context in which haiku exists‚ my knowledge of the work and principles of the poet himself‚ and the effects of the techniques used in the poem‚ on me. The evolution of haiku was greatly influenced by Zen Buddhism which is “focused on meditation‚ a simple life and living close to nature” (Baugh et al‚ 2006‚ p. 62). This haiku alludes to all three things – a bare branch signifying a simple life‚
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Plan in Haiku for Grade 8 (Semi-Detailed) I. Objectives At the end of the lesson‚ the students will be able to: A. Tell what a haiku poem is B. Distinguish the different characteristics of haiku poems C. Recognize the masters/poets of haiku through their works D. Read haiku poems with correct feelings‚ emotions and pronunciations E. Produce their own kind of haiku poetry F. Appreciate the art of haiku as the reflection of Japanese culture II. Subject Matter: Haiku Poetry
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CELL THEORY – STEM CELLS Stem cells are a large focus of study in today’s biomedical world. “They are cells that exist in an undifferentiated state‚ and transform into differing tissue types depending on what the cells surrounding them are‚“ (National Institute of Health‚ 2012). Stem cells have the remarkable potential to develop into many different cell types in the body during early life and growth. In addition‚ they also serve as an internal repair mechanism inside many tissues‚ dividing without
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Question 1 1 out of 1 points Items that are necessary for survival are called Answer Selected Answer: needs Correct Answer: needs Question 2 1 out of 1 points Materials that come from nature such as water‚ coal and timber are examples of Answer Selected Answer: natural resources Correct Answer: natural resources Question 3 0 out of 1 points The economy of the United States is often described as Answer
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When a recording artist is in the process of writing a song their goal is to tell a story that can relate to people’s lives‚ most of the time. In The Catcher in the Rye‚ Holden Caufield is struggling to find his place in the world and feels lousy and ‘depressed’ a lot. Many people in today’s modern day society have similar struggles as Holden‚ like feeling isolated and alone in the world. In the song ‘Mad World’ by Gary Jules‚ he speaks about being in the same place with the same worm out people
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