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- w i 1) Destruction of the ozone layer takes place when its component ozone (03) is converted O3 + 0202 into oxygen gas (O2) as shown by the following chemical equation. Although degradation of O3 happens naturally, there are some man-made substances that cause this process to take pla ce at a rate which is harmful to the environment. One such substance is chlorofluorocarbon or CFC. In the presence of ultraviolet (UV) radiation, a de chlorine (Cl) atom from CFC reacts with O3 and converts it to 02 at a faster rate. This is Cl + O3 → Clo + O2 Clo + 0- Cl + O2 shown by the 2 equations below. In this process, the chlorine atom acts as 2) Pepsin is an enzyme present in gastric juice. In the stomach, it catalyzes the breaking ! down of proteins into shorter polypeptides. Therefore, proteins are of pepsin. the 3) The unstable compound that is formed when the disaccharide maltose binds with the active site of the enzyme maltase is called 4) The binding of ATP with the enzyme pyruvate kinase…How does the combustion of fossil fuels influence our planet? Be sure to explain how the following are directly related to the combustion of fossil fuels: acid deposition, sea level rise, global climate change, greenhouse gasses and one other event of your choosing.In biofuel production, plants are grown in order to create fuels thatare eventually burned in vehicles like automobiles. Overall, does theprocess of biofuel production add carbon dioxide to the atmosphere,remove it, or both?
- Combining BioEnergy with Carbon Capture and Storage (BECCS) offers theprospect of energy supply with large-scale net negative emissions and in most of the lower RCPs is required to stay below 2 degrees of global warming. But this entails challenges and risks associated with the upstream large-scale provision of the biomass that is used in the CCS facility as well as those associated with the CCS technology itself. In no morethan 1 page (excluding diagrams) discuss the potential role of BECCS in reducing global greenhouse gas emissions from conventional fossil fuel power stations and what issues or barriers need to be addressed to enable this. Some of the points to be addressed include:i. To what extent the technology has been proven at an appropriate scale.ii. What incentives (e.g. what level of carbon price) would be needed to drive the investment needed.Extremophiles are microorganisms that can survive and proliferate in extreme environments. One group of such microorganisms are lithotrophs. These are found deep beneath the Earth's surface, living on rocks under anaerobic conditions and surviving on CO2 as their sole source of carbon. Imagine that you are studying a newly discovered lithotroph and are trying to determine what it uses as a source of electrons for reducing CO2 and for producing energy. Which one of the following conditions must be met for a molecule to serve as a useful electron donor? Oxidation of the molecule occurs with a decrease in free energy. Oxidation of the molecule occurs with an increase in free energy. Reduction of the molecule occurs with a decrease in free energy. O Reduction of the molecule occurs with an increase in free energy.A photobioreactor (PBR) system is used to sequester CO₂ from a small boiler operating at 20 kWth, fired with natural gas and with a capacity factor of 25%. Assuming that the microalgae can grow at 2 g/L-day over 365 days per year and utilize the emitted carbon, calculate the total reactor volume that is needed to sequester 100% of the CO₂ emissions per year. Briefly comment on your answer and potential problems of this CCS method.
- These questions relate to BOTH cellular respiration and photosynthesis. 19. Carbon cycles through living and nonliving parts of the environment. Three of the processes involved in the carbon cycle are photosynthesis, cellular respiration, and combustion. Which of the following tables correctly identifies whether each process releases carbon to the environment or stores carbon as biomass? A Releases Carbon Stores Carbon Releases Carbon photosynthesis cellular respiration photosynthesis Stores Carbon cellular respiration combustion combustion B 0 Releases Carbon Stores Carbon cellular respiration photosynthesis Releases Carbon cellular respiration Stores Carbon photosynthesis combustion combustion 20. The graph shows how concentrations of dissolved oxygen (02) and carbon dioxide (CO2) gasses change in pond water on a warm, sunny day. Based on the graph, which of the following best compares two processes occurring between 6 a.m. and 6 p.m.? A. The rate of transpiration is greater than the…In 1770, Joseph Priestley performed a series of experiments to determine the reactants and products of photosynthesis. The diagram below shows the experimental conditions and results of two experiments performed by Priestley, named here as Experiment 1 and Experiment 2. From his experiments, Priestley concluded that plants restore to the air whatever breathing animals and candles remove. Joseph Priestly Photosynthesis Experiments and Results Experiment Results: - candle extinguished (went out) 1 - mouse died Experiment 2 Results: candle continued to burn mouse stayed alive Note: Experiment 1 and Experiment 2 were both performed in the presence of sunlight. The substance produced by the plant in Experiment 2, that keeps the candle burning and the mouse alive is O CO2 O 02 O H2O O C6H1206The law of conservation of matter states that no matter on earth can be created or destroyed. Using the following equation: 6H2O + 6CO2 + Sunlight—> C6H12O6 + 6O2, explain how the process of photosynthesis is an example of this.
- Matter is constantly cycled between living and non living parts of the environment. Processes like photosynthesis and respiration allow the carbon cycle to regenerate needed substances by recycling earth’s atoms. A diagram of the carbon cycle is shown. Each arrow represents a process in the cycle. Which explanation best describes the process in the cycle. Which explanation best describes the process that occurs at the arrow marked B? A) plants use carbon dioxide from the atmosphere in the process of photosynthesis to produce glucose B) plants release carbon dioxide into the atmosphere in the process of photosynthesis to produce glucose C) plants use carbon dioxide from the atmosphere in the process of cellular respiration to convert glucose to atp energy D) plants release carbon dioxide into the atmosphere in the process of cellular respiration to convert glucose to atp energySome friends are trying to make wine in their basement. They've added yeast (which is a facultative anaerobe - it can perform both aerobic respiration and fermentation) to a sweet grape juice mixture and have allowed the yeast to grow. After several days they find that sugar levels in the grape juice have dropped, but there's no alcohol in the mixture. The most likely explanation is that the mixture needs less oxygen, because yeast only produce alcohol in the absence of oxygen the mixture needs less sugar, because high sugar concentrations prevent fermentation the mixture needs more sugar, because yeast need a lot of energy before they can begin to produce alcohol the yeast used the alcohol as a carbon source the mixture needs more oxygen, because yeast need oxygen to break down sugar and get enough energy to produce alcoholPlease help me answer those a,b,c questions. Please answer with your own original scientific words and not taken from the google internet, I could do it myself. Thank you for your help in advance. A) Explains why it takes six Calvin cycles to produce a glucose molecule. B) Why should a balanced diet absolutely include proteins? C) Why is it said that the Krebs cycle is an aerobic reaction, although oxygen plays no direct role in the series of reactions?