just end up alone in some awkward place? All I knew was that it was a long road ahead of me. I had begun to walk around this new environment. As I walked further down the walkway the sounds that surrounded me began to get louder. It even got to the point where I couldnt even hear myself think. I had decided to turn on the next corner to see if I could find out what the entire racket was about and as soon as I did it was like I had entered this whole different world. There was so much going on. There
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normally solitary animals. Answer: A Topic: Opening Essay Skill: Factual Recall 2) Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hierarchy as it increases in complexity? A) ecosystem‚ population‚ organ system‚ cell‚ community‚ molecule‚ organ‚ organism‚ tissue B) cell‚ molecule‚ organ system‚ organ‚ population‚ tissue‚ organism‚ ecosystem‚ community C) organism‚ organ system‚ tissue‚ population‚ organ‚ community‚ cell‚ ecosystem
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Cells come from pre-existing cells via division Cells of all organisms fundamentally similar in structure‚ function‚ and metabolic functions Contain hereditary information passed down during cell division A cell’s volume increases faster than it’s surface area Less surface area = less are for nutrient/waste diffusion Solves via: Dividing‚ getting thinner‚ form microvilli‚ store nutrients (Microvilli – within small intestine) Cells are highly organized‚ 3 basic parts Plasma membrane Selective
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Micrograph Structure (noun) Function (verb) Relationship between S/F Nucleus - Nucleus composed of chromatin‚ nucleoplasm‚ a nucleolus‚ and a nuclear envelope - Has large pores (nuclear pores/nuclear envelope) - Nuclear envelope has a double membrane - Diameter of 5 micrometers - spherical shape - controls all cell activity by directing which enzymes are made for specific functions - stores the genetic material of the cell (DNA) - directs the chemical reactions in cells by transcribing
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Cell Structure I. Cell History A. Anton Leewenhock (1600s) - first person to observe cells - in pond water‚ using a homemade microscope B. Robert Hooke (1665) - observed many kinds of animal tissue under a microscope - concludes that all animals are made up of cells C. Schwann (1868) - observed many kinds of animal tissue - concludes that all animals are made up of cells D. Schleiden (1869) - observed many kinds of plant tissue - concludes that all plants are made up of cells E. Cell
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Eukaryotes are organisms whose cells are organized into complex structures by internal membranes and a cytoskeleton. The most characteristic membrane bound structure is the nucleus. This feature gives them their name‚ (also spelled "eucaryote‚") which comes from the Greek word referring to the nucleus. Animals‚ plants‚ fungi‚ and protists are eukaryotes. Microorganisms and all other living organisms are classified as prokaryotes or eukaryotes. Prokaryotes and eukaryotes are distinguished on the
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Period:________ Cell Project Each person will complete one of the three cell projects at home: a. Cell Analogy Poster b. Travel Brochure to a Cell c. 3D Cell Analogy Model Due Date: Wednesday‚ November 26‚ 2014 One cell project (Poster‚ Brochure‚ OR Model) Use this packet as a resource guide to help lead you through your project. Remember‚ you are not doing everything in this packet‚ only ONE cell project choice at home. Parents/Guardians Please review the choices for the cell project with
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respond using the understanding of the cell membrane structure‚ types of transport mechanisms such as active‚ passive‚ diffusion‚ osmosis‚ and explain the movement of particles moving across the cell membrane. In this lab was divided into two parts. The first part was varying the concentration and the second part was varying the temperature. All cells are controlled by a cell membrane or plasma membrane that keeps the materials inside. When I think of a cell membrane I think of a grocery bag with
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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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simple sugars ▪ Chemical formula for hexoses is C6H12O6 ▪ The most abundant sugars in nature. They comprise both disaccharides and polysaccharides. ▪ Examples are Glucose‚ Galactose and Fructose. o • Isomers • Chemicals that share the same chemical formula but different structures (mirror images) • • Glucose “the blood sugar” • The primary source of energy in all living things • • Galactose
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