APPROVED ACADEMIC SESSION: 2011/2012 Campus MEDWAY School School of Science Level Four Date May 2012 COURSE CODE BIOL1002 COURSE TITLE FUNDAMENTAL BIOLOGY AND PHYSIOLOGY Duration 2 Hours ___________________________________________________________________________ INSTRUCTIONS TO CANDIDATES SECTION A Answer ALL the multiple choice questions on the answer sheet provided. Each question carries one mark (50 questions). SECTION B Answer TWO questions. Each question carries 25 marks.
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Vitiligo is a complex disease associated with selective and progressive loss of melanocytes from epidermal basal layer resulting in white patches‚ commonly on the skin and occasionally on mucosae. It is also known as leukoderma or phulwari in India. The condition is non-contagious and asymptomatic but is associated with a significant psychosocial implication leading to an exaggerated sense of humiliation‚ loss of self-esteem and job discrimination among patients. Worldwide prevalence of vitiligo
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DIGESTIVE ENZYMES AND THEIR FUNCTIONS Mouth -the oral cavity or the mouth contains salivary glands that secrete a wide range of enzymes to aid the first step of metabolism of food. The salivary gland secretes the enzyme lysozyme which has an antibacterial action. The enzymes secreted by the mouth mainly provide protection against bacteria. Betaine helps to maintain a fluid balance inside the mouth. The lists of digestive enzymes secreted by the oral cavity are mentioned in the table. Enzymes
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Unit 1. Homeostasis and Integument 1. Define what is meant by homeostasis in living systems a. Homeostasis = Body wisdom ↓ ↓ Steady state * Homeostasis keeps us healthy * The means by which organisms (our body) maintain a constant internal environment in spite of fluctuations in the external environment. * This means humans have narrow limits we have to keep. 1. Body temp 2. Water content * Our blood contains 92% water and has to maintain
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The oxygen gas is first brought into the body through the nasal cavity. Once the O₂ molecule has entered the body through the nose‚ it will travel down the esophagus into the bronchi. It will then go through the lung tissue and into the bloodstream where is it dissolved and absorbed by the red blood cells. Once it is taken up by the red blood cells into will travel throughout the body until it has reached a cell that is in need of oxygen in order to last. In this case the O₂ molecule will travel
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present in the solution. In Tube B‚ pancreatic extract and liquid protein were used. The Ninhydrin turned purple when added to the solution‚ suggesting that the solution had amino acids present. This demonstrated the role that enzymes like pepsin and trypsin play in the body when breaking down proteins. When there are no amino acids detected in the final solution‚ it means that the protein was not broken down at all. This was the case in Tube A. Tube B did have amino acids present‚ meaning that the pancreatic
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Reproductive System 1. How is a vasectomy performed? Be sure to cite the specific anatomical structures involved. How does this prevent pregnancy? Vasectomy refers to the surgical procedure that involves male fertilization that helps to perform lasting birth control. During this procedure‚ surgeon cut off part of the male anatomy called vas deferens that transports sperm from the epididymis to the ejaculatory ducts. It prevents further sperm entering into the seminal stream. After this procedure
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ENZYME TIME (posted 9-7) Written by: Len Davis Creatine. Check. Arginine. Check. Protein powder. Check. Enzymes. Che . . . wait‚ what was that last one? You may not think of them as you compile your supplement shopping list‚ but enzyme products can be a smart choice for packing on muscle mass. Traditionally‚ enzymes are known as a digestive aid‚ but studies have shown that they also play an important role in recovery from high-intensity training‚ making them a prime addition to a bodybuilding
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Biology Grade 11 Exam Study Guide Diversity Taxonomic Categories Domain Kingdom Phylum Class Order Family Genus Species Hierarchy From most general to most specific Binomial Nomenclature System used to identify all organisms on Earth Identifies an organism by its genus and species (ex. Humans-homo sapiens) Developed by Linnaeus in the 18th century Identifying Species 3 methods: Morphology Form and shape It is simple but there are natural variations in population Biology
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The Digestion process The digestive process is important in maintaining the lives of living organisms and in providing them with needed energy and nutrition. Groups of organs‚ such as the mouth‚ esophagus‚ stomach‚ intestines‚ pancreas‚ and gal bladder work together to perform this complex task. Digestion is the process of breaking down food from large molecules into small ones to make it easier for absorption. The three major steps involved in the digestive process are ingestion‚ digestion‚ and
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