LIGHT IN PHOTOSYNTHESIS Theory: Leaf discs float normally. When the air spaces are infiltrated with the solution the overall density of the leaf disc increases and the disc sinks. The infiltration solution includes a small amount of sodium bicarbonate. The bicarbonate ions serve as the carbon source for photosynthesis. As photosynthesis proceeds oxygen is released into the interior of the leaf which changes the buoyancy – causing the discs to rise. Since cellular respiration is taking place
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INTRODUCTION Standing Broad Jump (SBJ) is a test for muscular power of the lower extremities‚ coordination of the upper and lower extremities‚ and a person’s ability to jump horizontal distances. The SBJ is a test station that has been used in official fitness tests in Singapore and has one of the higher failure rate (Wai Kit. L‚ 2014). There are many components that contribute to jump performance; velocity of the centre - of - gravity (CG) at take - off‚ jumping technique‚ and magnitude of force
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PHYSICAL FITNESS WHAT IS FITNESS? Fitness does not only refer to being physically fit‚ but also refers to a person’s mental state as well. If a person is physically fit‚ but mentally unwell or troubled‚ he or she will not be able to function optimally. Mental fitness can only be achieved if your body is functioning well. You can help relax your own mind and eliminate stresses by exercising regularly and eating right. FITNESS COMPONENTS a) Health Related Fitness The components of health related
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Exercise 7: Respiratory System Mechanics: Activity 1: Measuring Respiratory Volumes and Calculating Capacities Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. Which of the following statements describing the mechanics of breathing is false? You correctly answered: d. Ventilation relies exclusively on contracting skeletal muscles. 2. The contraction of which of the following muscles will increase the thoracic cavity volume during inspiration?
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Abstract The major racket sports include badminton‚ squash‚ table tennis and tennis. The growth of sports science and the commercialization of racket sports in recent years have focused attention on improved performance and this has led to a more detailed study and understanding of all aspects of racket sports. The aim here‚ therefore‚ is to review recent developments of the application of motor skills to racket sports specifically on badminton. It is evident that a great deal of scientific endeavor
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Muscle Fatigue Monira Begum How muscles work and get the energy they need to work. Muscles need energy to work and move. (1) Their main source of energy is glucose. Glucose is made of a number of different types of carbohydrates (usually sugar) as well as milk and fruits. Glucose turns into other chemicals such as water and carbon dioxide which releases energy. (2)Your muscles get warm when using or burning energy. Glucose is sent to muscles through red blood cells; this is how muscles get
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(a) Give generalized conclusions (in point form) according to your observation in (a). 1. systolic pressure increases when the degree of exercise increases Systolic pressure increases gradually from 115 mmHg at rest to 150 mmHg during severe exercise. When thr degree of exercise increases‚ the skeleton muscle needs more energy(ATP) for rapid contraction by carrying out aerobic respiration. The skeleton muscle required faster uptake of oxygen and removal of carbon dioxide. At the same time‚ skeleton
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A. Cardiovascular Fitness At the moment‚ my cardiovascular fitness is not very efficient‚ if I do not improve my cardiovascular fitness‚ it will increase my likelihood of heart disease and respiratory problems down the road. By increasing my cardiovascular endurance level‚ it can help my cardiovascular and respiratory systems to function properly while under the stress of challenging exercise sessions. Like the book mentions‚ improving cardiovascular endurance will not only help boost oxygen to
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Cardiac Catheterization and Kidney Function In many hospitals‚ the use of cardiac catheterization is used to determine if a patient has occluded arteries or grafts. This procedure saves many lives every day and helps prevent myocardial infarctions in many cases. The procedure itself is rather simple and safe for the most part‚ but one thing that many fail to realize is how hard the procedure is on kidney function due to the dye used intra-procedure. According to the NIH‚ kidney damage caused by
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Benefits of exercise: reduction of anxiety and improvements of well-being of pregnant women. Physical fitness has many positive effects on individuals’ physical health and well-being (). Exercise has been shown in previously conducted research to help ease muscle tension‚ alleviate back pain‚ and help regulate blood pressure (Jones‚ Dean and Lo‚ 2002). Exercise activity releases endorphins in the brain‚ which can improve mental focus‚ reduce anxiety and boost self-esteem (McArthur and Raedeke‚
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