NUCLEUS Function The nucleus is the control center of a cell as such it is the most important part of the cell. The control arises from the genetic information stored in the nucleus. Genes are made of the nucleic acid DNA. Hundreds of genes are linked together into enormous molecules called chromosomes (chromatin). Genes can be switched on or off and are indirectly responsible for making proteins which do the work of the cell. Structure The nucleus is a large roundish organelle. It is bounded
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BIOLOGY 10 Introduction to Biology Laboratory Manual Prepared by: KLLabrador Table of Contents |Exercise |Title |Page No. | |1 |Observation and Description |2 | |2 |Formulation
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Plant Tissues A mature vascular plant (any plant other than mosses and liverworts), contains several types of differentiated cells. These are grouped together in tissues. Some tissues contain only one type of cell. Some consist of several. Tissue is a cellular organizational level intermediate between cells and a complete organism. A tissue is an ensemble of similar cells and from the same origin, that together carry out a specific function. These are called tissues because of their identical functioning
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|2.3 Cell Continuity |Objectives | |2.3 Cell continuity + Mitosis |Explain the terms: cell continuity & chromosomes. | | |Define the terms: haploid & diploid number. |
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3 Cells and Tissues Concepts of the Cell Theory A cell is the basic structural and functional unit of living organisms. The activity of an organism depends on the collective activities of its cells. According to the principle of complementarity, the biochemical activities of cells are dictated by the relative number of their specific subcellular structures. Continuity of life has a cellular basis. Chemical Components of Cells Most cells are composed of the following four elements
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Cloning Team D: Casey Krueger, Erin Lee, Ferdinand Malarayap, Marvin Monge, and Ibrahim Mortada August 14, 2011 DeVry University Online Stem cell research and cloning have become a major topic of interest in countries all around the world ever since Dolly the sheep was successfully cloned in 1997. Every single country has their own views about stem cell research and cloning because of their moral and ethical issues. Muslims, for example, are individuals who are firm believers that knowledge is
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deeper; surface landmarks Microscopic anatomy: seen with microscope - Cytology: cells - Histology: study of tissues Developmental anatomy: study of changes of the body from conception to full maturation Comparative anatomy Radiographic anatomy: using special tools - CT, NMR, MRI Chapter1 : Page 6- intro to organ systems, different characteristics The Cell Cytology: study of the cell Why study cells? - Cells concentrate needed molecules, expel waste, synthesize larger molecules with complex
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reach the major organs that need the heart to work for them to be sustainable, the cells would not be able to produce ATP after it uses all the energy left in the cell from rapidly burning it up when the oxygen level drops and this function gives power to the cell. The cells will stop functioning and eventually die because of the loss of power in the cellular life and the ATP shuts down the plasma membrane. The cells will began to leak, and sodium will start to leak into the call and potassium will
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Histology: the study of the microscopic structure of cells and tissues * Gross anatomy: The study of the organs, parts, and structures of a body that can be seen with the naked eye Describe different levels of structural organisation of the human body: * Chemical elements and compounds combine to form * CELLS: basic units of life (cytology: study of the structure and function of the cells) * Group of similar cells and cell products that perform a special function.
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the aging process in which it’s used and why it’s so important. Human cells are constantly dividing. Whether they’re skin cells attempting to help replenish the epidermis or bone cells participating in bone remodeling, cells constantly need to replicate. When somatic cells divide, they do so through a process known as mitosis. During this process, chromosomes create duplicates of themselves in order to make a new cell. Chromosomes are able to accurately replicate themselves many times because
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