It is measured during a resting metabolic rate assessment or calorie point. When you measure how much oxygen is inhaled and how much carbon dioxide is exhaled, the amount of carbohydrates and fat being burned can be measured. Our bodies are only able to use fat as a major fuel source when it’s able to get O2 into the cells. A person’s resting or moderately active respiratory quotient should be 0.7 to 1.0. When we do intense workouts our ratio increases about 1.0, thus making our bodies work anaerobically (this means without O2).
Acetyl-CoA is transported within the cell to the mitochondrion, a specialized organelle where acetyl-CoA converts into ATP. Aerobic cellular respiration is a more efficient process producing 38 molecules of ATP compared to the anaerobic process that produces 2 ATP molecules. This sequence of reactions also creates the by-products of water and carbon dioxide (CO2). The by-product carbon dioxide was the compound measured for this experiment. As carbon dioxide is released into the water through the respiration of the crayfish it is converted into carbonic acid shown below.
Adding distilled water to the solution lowers the initial intensity of the blue color, bringing back to a lighter blue. Applying heat to this solution changes it’s color from blue to green to eventually turning black. After boiling, black precipitate can be identified, which is what gave the solution it’s black color. Once the precipitate begins to settle on the bottom of the beaker, the liquid solution can be observed as being clear. Some of the black precipitate becomes stuck to the side of the beaker as it’s being stirred and some of the liquid being vaporized.
Caffeine & Alcohol Effect on the Water Flea Heart Rate Abstract In this study, water fleas (Daphnia magna), a semi-transparent freshwater crustacean, are used to study the effects of caffeine and alcohol on heart rate. There was a control group used along with the alcohol and caffeine to ensure the results were more accurate. The prediction was the introduction of alcohol and each increased concentration of alcohol, would decrease heart rate and the introduction and subsequent increased concentrations of caffeine would increase heart rate. The results of this experiment proved the prediction to be correct with the alcohol, but the results from the caffeine were hardly noticeable. Methods & Materials
Glucose is split into two molecules called pyruvate and two ATP molecules are generated per molecule of glucose as well as two molecules of NADH. Also Glucose takes place in the cytoplasm of the cell. Glycolysis can occur with or without oxygen. Without oxygen it is called fermentation with oxygen it is the first stage of the cellular respiration. • What is the role of the citric acid cycle?
AS substrates are initially added, the activity is higher and then it reaches a plateau with increase. NO. Sucrase activity reached a plateau. Correct Predictions: Optimal temperature: 40 °C (104 °F), Sucrase activity increases with increasing sucrose concentration until a plateau is reached. Incorrect predictions: Sucrase will have highest activity at ph 6 not ph 7 Warm up exercise increases body temperature making it ideal for enzyme activity Increasing myosin activity makes muscles tougher and stiff and limits free movement for performance.
K+ Perform flame test by dipping a test loop in test solution and putting in Bunsen flame after cleaning the loop with HCl(aq). Observe flame through a cobalt blue glass. A lavender flame occurs and the flame is observable through the cobalt blue glass. Presence of potassium in the test solution - 3. NH4+ Heat 5mL of the test solution in a beaker.
Gabriella Armstrong An Experiment Investigating the Rate of Photosynthesis in a Water Plant Introduction Photosynthesis is the process in which carbon dioxide and water are converted into glucose and oxygen. The reaction requires light energy, which is absorbed by chlorophyll. This process can be represented using an equation: Carbon dioxide + Water (+ light energy) → Glucose + Oxygen Research Question The objective of the experiment was to find out if light intensity affects the rate of photosynthesis in aquatic plants that are naturally found in water. This would be observed by the amount of oxygen bubbles released in water during photosynthesis. By shining a light at different distances to the Elodea plant a trend may be observed between light and the rate of photosynthesis.
Exercise increases your heart rate, which strengthens your heart HDL (high density lipids) “good" cholesterol and reducing your triglycerides, which can help lessen the buildup of arterial plaque. These benefits decrease your risk of developing heart disease in the future.Pulmonary changes Exercise not only increases your heart rate, it also increases your breathing rate. Like the heart, as your lungs work harder, they become stronger. This increases your ability to take breaths during rest times as well as during exercise. Stronger lungs mean you can similarly take more oxygen in.
So what is Refeeding? Refeeding can be defined as a planned increase in calorie intake during dieting. Refeeding can yield a myriad of psychological and physiological benefits: • Decreased risk for binge eating because of hunger regulation • Restored muscle glycogen so better performance in gym. • Increased motivation from boosted testosterone, and leptin (a hormone responsible for satiety and metabolism). Leptin!!