breath‚ our body combines the oxygen with fuel to produce energy‚ the source of fuel are food nutrients such as; protein‚ fat‚ carbohydrates‚ i.e. starch and sugar. The body’s most preferrred fuel for exercises‚ e .g. marathon running are; glucose and fat. This process breaks down glucose into lactic acid C3 O6 H3 and energy as follows: C5 H12 O6 2C3 H6 O3 + energy Anaerobic respiration is a stage of cellular respiration that happens in the absence of oxygen. The first step is the breakdown
Premium Cellular respiration Metabolism Glucose
Hypotheses Water quality parameters such as pH‚ dissolved oxygen‚ seston‚ water temperature etc. are important variables in the abundance and diversity of benthic macroinvertebrates of the Old Chelsea stream. Therefore‚ it can be hypothesized that pH and dissolved oxygen have a direct correlation on biotic factors within the stream. Furthermore‚ due to the surface water velocity variations of the stream‚ it is hypothesized that water pH and dissolved oxygen interreach variability is statistically significant
Premium Biotic component Statistical hypothesis testing Oxygen
INTRODUCTION/LITERATURE REVIEW THE ERYTHROCYTES A cell that contains haemoglobin and can carry oxygen to the body. Also called a red blood cell (RBC). The reddish colour is due to haemoglobin. Erythrocytes are biconcave in shape which increases the cells surface area and facilitates the diffusion of oxygen and carbon dioxide. This shape is maintained by a cytoskeleton composed of several proteins. Erythrocytes are very flexible and changes shapes
Premium Red blood cell Oxygen Hemoglobin
‘heme’. The ‘heme’ group contains one atom of iron (Fe²+) and it is this iron that the oxygen molecule combines itself to. As there are four of the iron molecules in the haemoglobin this shows that a maximum of four oxygen molecules can be carried by the haemoglobin at anytime. For simplicity the equation of the reaction of haemoglobin and oxygen is written as a single polypeptide ‘heme’ chain reacting with oxygen: O2 + Hb ↔ HbO2 . The reactions of the four subunits occur in a consecutive manner‚ with
Premium Oxygen Carbon dioxide
Dissolved oxygen enters water through the air and plant. Dissolved oxygen produce by the atmosphere and the process is called air saturation. The gasses a stable body of water with no stratification‚ dissolved oxygen will remain at 100% air saturation. 100% air saturation means that the water is holding as many dissolved gas molecules as it can in equilibrium. At equilibrium‚ the percentage of each gas in the water would be equivalent to the percentage of that gas in the atmosphere like its partial
Premium Water Oxygen Carbon dioxide
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. Plants also need mineral ions‚ including nitrate and magnesium‚ for healthy growth. They
Free Carbon dioxide Photosynthesis Oxygen
the diaphragm moves down. 3. The primary stimulus for breathing is the amount of carbon dioxide in the blood. 4. Oxygen moves from the alveoli to the capillaries by means of diffusion. 5. Carbon dioxide is carried in the plasma as the bicarbonate ion. 6. Hemoglobin readily takes up oxygen in the lungs‚ where the pH is neutral and the temperature is cool. 7. At the tissues‚ oxygen diffuses out of the blood and carbon dioxide diffuses into the blood. 8. In which structures does gas exchange actually
Free Carbon dioxide Oxygen
having water coming in contact with these kinds of products‚ such as magnesium and gasoline. According to Robert Vettori‚ “Magnesium has a strong affinity for oxygen that it attracts the oxygen from oxygen containing compounds” (5). With this said‚ it shows that the two products burning are both magnesium and an adequate supply of oxygen. The National Fire Protection Association Fire Protection Handbook expresses that water may used to extinguish magnesium fires if it can be applied very quickly
Premium Oxygen Carbon dioxide Water
EXPERIMENT 7: PERCENTAGE OF OXYGEN IN KClO3 Introduction: In this experiment you will determine the percentage of oxygen in potassium chlorate. You will calculate the theoretical value from the chemical formula and compare your experimental value to the theoretical value. Background: When potassium chlorate (KClO3) is heated‚ it undergoes chemical decomposition. Oxygen gas (O2) is given off and potassium chloride (KCl) remains as the residue. The equation for the decomposition of potassium
Premium Chlorine Oxygen Potassium
electronegativities of the carbon and oxygen atoms that are bonded in acetic anhydride. This difference in electronegativities causes one of the carbonyl groups in acetic anhydride to break its carbon-oxygen double bond with the oxygen atom taking the pair of electrons from the pi bond and results in a negative charge on oxygen and a positive charge on carbon. The positive charge on carbon is then stabilized by the donation of a lone pair of electrons from oxygen‚ which is attached to both of the carbonyl
Premium Oxygen Atom Electric charge