POB II: Exam II Review Chapter 6: tour of the cell Microscopy: • Microscopes provide a window to the cell. • Most important tool in cytology • Resolution has improved understanding of cells. o Resolving power – the smallest distance between two objects that allows them to be seen as distinct objects. o Resolving power of the human eye is 0.1 mm • Light microscope – uses glass lenses and visible light to form a magnified image of an object. o Resolving power of about 100 nm (.0002 mm)
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able to carry on exercising. During acute exercise your muscle pliability increases which allows a greater range of movement which helps reduce injury. Acute exercise will cause muscle fibre micro tears. This is generally known as micro-trauma. The myosin heads and the actin filaments will be pulled from the myofibrils. This damage will cause a release of chemicals that cause the soreness after your period of exercise. The chemicals released also stimulate repair and growth in the area to rebuild the
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break records With my research‚ if we took away drugs all records will be cut 20-50% These steroids are different from the others These steroids i’m referring to produce different proteins but they primarily increase the production of the actin and myosin that are the major proteins that make you strong and jacked. The main issue is getting those steroids into your blood to have full effect. That’s why most of the time it’s better to not involve digestion so it can be safer on your
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Vocabulary Chapter 4 1. adhesive junctions- tissues that link together cells 2. basal body- An eukaryotic cell organelle that consists of a 9 + 0 arrangement of microtubule triplets; could be the organization of a microtubule assembly of a cilium or flagellum; its structure is completely identical to that of a centriole 3. capsule- surrounding the cell walls of some bacteria is a sticky layer that protects the cell surface and sometimes helps in gluing cells to surfaces 4. cell junctions- A
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Cells are the structural and functional units of all living organisms; each specialised to perform dedicated duties throughout their life span. All living organisms can be sorted into one of two groups depending on the fundamental structure of their cells. These two groups are the prokaryotes and the eukaryotes. A Prokaryote cell is the first form of cells for many millions of years until the eukaryote cell evolved from the prokaryote cell‚ which created life. Prokaryote cells are organisms made
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Chapter 1 • Anatomy & Physiology • Gross anatomy – visible to naked eye • Microscopic • Developmental • Pathological anatomy • Radiographic anatomy • Molecular biology • Physiology • Focuses on cellular or molecular level • Principle of Complementarity of Structure and Function • A&P are inseparable • Function reflects structure • Specific form • Levels of organization 1. Chemical level 2
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LABORATORY REPORT (Click on the Save a Copy button on the panel above to save your report) Activity: Name: Instructor: Date: Enzyme Activity Pam Campbell Id 0002337 Dr. Murphy Nmezi August 9‚ 2011 Predictions 1. Sucrase will have the greatest activity at pH 6 2. Sucrase will have the greatest activity at 40 °C (104 °F) 3. Sucrase activity increases with increasing sucrose concentration until a plateau is reached. Materials and Methods Effect of pH on Enzyme Activity. 1. Dependent Variable
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to "recognise" foreign microbes and cancer cells‚ these cell-surface receptors are from the core of the body’s endocrine and immune system (Raven et al 2008). Muscles contract through the sliding motion of two kinds of protein filaments: actin and myosin (Raven et al 2008). A variety of globular proteins transport small molecules and ions. The transport protein Haemoglobin‚ for example‚ transports oxygen in the blood stream (Raven et al 2008). Small proteins called
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be able to carry on exercising. During acute exercise your muscle pliability increases which allows a greater range of movement which helps reduce injury. Acute Exercise will cause muscle fibre tears. This is generally known as micro- trauma. The myosin heads and the actin filaments will be pulled from the myofibrils. This damage will cause a release of chemicals that cause the soreness after your period of exercise. The chemicals released also stimulate repair and growth in the area to rebuild the
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LABORATORY REPORT (Click on the Save a Copy button on the panel above to save your report) Activity: Enzyme Activity Predictions 1. Sucrase will have the greatest activity at pH 6 2. Sucrase will have the greatest activity at 60 °C (140 °F) 3. Sucrase activity decreases with increasing sucrose concentration. Materials and Methods Effect of pH on Enzyme Activity. 1. Dependent Variable. amount of product (glucose and fructose) produced 2. Independent Variable. pH 3. Controlled Variables
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