Culinary Exam Review Contaminants • Chemical o Toxic metals (lead‚ copper‚ brass‚ zinc) o Chemicals (cleaning products‚ polish‚ lubricants‚ sanitizers) o Pesricides • Physical: glass‚ metal‚ nail polish • Biological o Seafood toxins o Plant toxins o Fungal toxins o Pathogens o Bacteria o Parasites o Viruses Pathogens: Microorganisms that cause illnesses (virus‚ bacteria‚ parasites and
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Cellular Functions CORE TOPIC 1: CELLULAR FUNCTIONS Learning Outcomes: (a) Describe and interpret drawings and photographs of typical animal and plant cells as seen under the electron microscope‚ recognising the following membrane systems and organelles: rough and smooth endoplasmic reticulum‚ Golgi body‚ mitochondria‚ ribosomes‚ lysosomes‚ chloroplasts‚ cell surface membrane‚ nuclear envelope‚ centrioles‚ nucleus and nucleolus. (b) Outline the functions of the membrane systems and organelles
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Cardiovascular Anatomy & Physiology I. Structures and Functions Heart Muscle * Has 3 layers (epicardium‚ myocardium‚ and endocardium) and a surrounding sac called the pericardium * Location: In the mediastinum‚ above the diaphragm‚ and is surrounded on both sides by lung * Shape: Resembling triangle‚ with base parallel to the right edge of the sternum Heart Chambers * The right side of the heart is a low pressure system and the left side is a high pressure system
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CHAPTER 1 Interest in the human body and how it functions probably developed when our ancestors began to think about the reasons why people became ill and died. All earlier cultures had someone designated as a healer who was responsible for finding plants and herbs that cured body disorders. This healer also was responsible for praying or invoking the assistance of past ancestors to help in the healing process. As cultures developed and science began to evolve‚ interest in and knowledge about
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powered by the oxidation of fats and carbohydrates‚ but anaerobic chemical reactions are also used‚ particularly by fast twitch fibers. These chemical reactions produce adenosine triphosphate (ATP) molecules which are used to power the movement of the myosin heads.
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complex muscular response. 16. When patients are told to think about a particular movement‚ there is an increase in blood flow to the (motor cortex/supplemental motor area). 17. The (thin/thick) filaments are made of the contractile protein called ‘myosin’. 18. Muscles do not continuously contract because the cross bridges are (prevented/allowed) to bind with the actin molecules. 19. When there is an action potential‚ it (acts on the contractile proteins directly/increases the cytosolic calcium concentration)
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Chapter 4 Tissue: The Living Fabric 4.1 What are tissues? * Groups of cells that are similar in structure and perform a common or related function * There are four basic types of tissues: 1) Epithelial (covering) 2) Connective (support) 3) Muscle (movement) 4) Nervous (communication and control) * The study of tissues is known as histology 4.2 Preparing Human Tissue for Microscopy Requirements * Specimen must be fixed (preserved) * Specimen must be
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BIOLOGY 22 MODULE 1 – Chemical Basis of Life v2.0 * Levels of Organization – biological functions are ultimately based on the properties of atoms and molecules * Subatomic particles – neutrons‚ electrons‚ protons * Atoms * Compounds * Complexes of compounds * Organelles – bodies within cells that perform specific functions * Cell * Specific combination of organelles * Can metabolize and reproduce * Least elaborate living structure * Significance
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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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Section 1: Binary fission‚ mitosis‚ & meiosis Reading: Chapter 7 Watch and Learn: Mitosis http://www.youtube.com/watch?v=1cVZBV9tD-A&feature=share&list=UUEik-U3T6u6JA0XiHLbNbOw Meiosis http://www.youtube.com/watch?v=rB_8dTuh73c&feature=share&list=UUEik-U3T6u6JA0XiHLbNbOw Basic Learning objectives After completing the readings and practice exercises‚ students should be able to: Describe the process of binary fission. Describe the features and components of eukaryotic chromosomes and sister
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