Organ Systems and their functions I. Integumentary System Functions to protects against environmental hazards; helps control body temperature. Composed of Skin and derivates Epidermis – covers surface; protects deeper tissues Keratinocytes – waterproofing Melanocytes – pigment –protects against UV light Dermis – Nourishes epidermis; provides strength; contains exocrine glands Collagenous tissue – strength Skin Derivates A. Hair– protection and warmth (vellus – fine un-pigmented hair: terminal
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acid radical which is a poison and relatives to formaldehyde. This acetic acid radical combines with enzymes in the liver and enters the Krebs Cycle which is the second stage of cellular respiration‚ also referred to as citric acid cycle that is fueled by acetyl CoA formed after glycolysis in cellular respiration. Chemical reactions in the cycle complete the metabolic breakdown of glucose molecules to carbon dioxide and water (Simon‚ 2010‚ p.G-5). The cycle occurs in the matrix of mitochondria and
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Biology exam Endocrine system: Hormones: chemical messengers that coordinate the body’s activates. Substances secreted by cells that act to regulate the activity of other cells in the body. They are part of the endocrine system and they are slow acting but have a longer affect than neurotransmitters. Functions: * regulate growth‚ development‚ behavior‚ and reproduction. * Maintain homeostasis * Regulate metabolism and water and mineral balance * Respond to external stimuli
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Evolution of Plants and Fungi LAB REPORT 95.00 % (A) Animal Diversity LAB REPORT Part 1 93.59 % (A) Animal Diversity LAB REPORT Part 2 100.00 % (A) Animal Diversity LAB REPORT Part 3 100.00 % (A) Becoming Human LAB REPORT 95.00 % (A) Respiration and Photosynthesis LAB REPORT Part 1 620.00 % (A) Plant Organization LAB REPORT Part 2 93.00 % (A) Plant Transport LAB REPORT 100.00 % (A) Plant Reproduction LAB REPORT 100.00 % (A) Nervous System LAB REPORT 70.00 % (C) The
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Respiration is the process that takes place in every living cell to make energy available to the body. Energy is vital for us to carry out many life processes such as movement and so respiration in essential to life. During respiration glucose and oxygen are used in a reaction that produces energy and gives out carbon dioxide and water as waste products. Glucose is obtained by digestion of food and oxygen is taken from the air during a process called breathing or ventilation. Pulmonary Ventilation
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Photosynthesis Green plants absorb light energy using chlorophyll in their leaves. They use it to react carbon dioxide with water to make a sugar called glucose. The glucose is used in respiration‚ or converted into starch and stored. Oxygen is produced as a by-product. This process is called photosynthesis. Temperature‚ carbon dioxide concentration and light intensity are factors that can limit the rate of photosynthesis. Photosynthesis summary Photosynthesis [photosynthesis: The chemical change
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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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In my BIO 102 lab I have learned about the Microscope and Lab Safety‚ Sensory Organs (Eyes and Ears)‚ The Human Blood and Circulation‚ and Respiration. Once I first started this class this semester taught us about the Microscope and Lab Safety. According to google online dictionary a Microscope is an optical instrument used for viewing very small objects‚ such as mineral samples or animal or plant cells typically magnified several hundred times. We used this instrument to look at different types
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resuscitation (CPR)—the heart lies between the sternum in front and the bodies of the thoracic vertebrae behind; rhythmic compression of the heart between the sternum and vertebrae can maintain blood flow during cardiac arrest; if combined with artificial respiration procedure‚ it can be life saving * HEART * Anatomy * Heart chambers (Figure 12-2) * Two upper chambers called atria (receiving chambers)—right and left atria * Two lower chambers called ventricles (discharging
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Outline I. Title: The Causes of People Exercise II. Introduction: A. Hook B. Thesis statement: There are three causes of people exercise: health‚ appearance‚ and relieve stress. III. Body Paragraph 1: Health A. Promote digestion B. Promote blood circulation C. Disease prevention IV. Body Paragraph 2: Appearance A. Increase muscle B. Lost weight V. Body Paragraph 3: Relieve stress A. A lot of work B. Abreact a bad mood C. Divert attention VI. In Conclusion Qiang Yi IEP 261-262
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