Describe the cycle of carbon (C), nitrogen (N) or phosphorus (P) (only one) and include one paragraph overview, explaining the movement of the compounds of this element between the Earth’s spheres (including relative amounts) and how these movements are accompanied by changes in chemical forms.
Q: Four molecules form an electron transport chain with the electron being sequentially passed from…
A: The electron transport chain consists of a series of electron acceptor proteins.
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A: The oldest method of food preservation includes drying, refrigeration and fermentation…
Q: A reduced compound isa. NAD+ b. FAD c. NADH d. ADP
A: A cell is the fundamental unit of life. All living organisms are made up of one or many cells. Each…
Q: DESCRIBE THE ROLE OF ATP IN THE COUPLING REACTIONS SEEN IN BIOLOGICAL PROCESSES
A: Adenosine triphosphate is the energy molecule for life. It is the high-energy molecule that stores…
Q: Statement A: The flow of matter across the earth’s subsystems involves the transformation of matter…
A: Statement A: The transformation of matter into energy takes place through many chemical reactions…
Q: Explain why life on Earth is carbon-based rather than, for example, hydrogen- or oxygen-based.
A: BASIC INFORMATION EVOLUTION The theory of evolution was first given by the Jean Baptist de Lamark.…
Q: Is the bolded statement TRUE or FALSE? Free energy: 11. is exchanged between a system and the…
A: At the state of equilibrium, the Gibbs free energy change is zero.
Q: What is ultimately the source for most of the energy used to sustain life on earth? the sun…
A: For all living organisms to perform their all physiological activities they need energy in…
Q: Students studying the plant Brassica rapa want to know at what percent of carbon dioxide (CO2) in…
A: It is a multiple choice question.
Q: How are the electrons of carbon distributed between the first and second electron shells?
A: In the world of atomic physics or quantum chemistry, the concept of electron configuration is…
Q: Which of the following is "unfixed" carbon? O N2 (atmospheric nitrogen) O CO2 (carbon dioxide) O…
A: Introduction :- Biological carbon fixation, also known as carbon assimilation, is the process by…
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A: In Ecology, trophic level refers to the position an organism occupies in a food chain.
Q: If 2 minerals had the same amount of energy transferred in, why did mineral A change while Mineral B…
A: There is a barrier inside each mineral which has to overcome in order to show a change in it.
Q: The reactions in which single carbon atoms aretransferred from one molecule to another are…
A: Carbocation rearrangements are defined as the movement of a carbocation from an unstable state to a…
Q: Explain why two atoms of hydrogen tend to combine into a molecule of hydrogen gas (H2).
A: The fact that hydrogen exists as dihydrogen, H2, instead of H indicates that the mixture of 2…
Q: The term ____________________ refers to the sum total ofall the low-molecular-weight metabolite…
A: The metabolome includes compounds such as fatty acids, amino acids, vitamins, and carbohydrates that…
Q: Compare cellular respiration, photosynthesis and alcohol fermentation. In your comparison, be sure…
A: Metabolic processes are the chemical reactions occurring inside the body to generate and utilize…
Q: The isotope added to fertilizer to study plant processes is called?
A: It is related to research the plant nutrition.
Q: why is energy released when IMFs form in between molecules as they approach eachther
A: In molecular terms, intermolecular forces are the forces of attraction and repulsion between…
Q: Explain why methane is nonpolar but water is polar.
A: Methane, the main component of natural gas, is a nonpolar molecule. In it, four hydrogen atoms…
Q: Explain the natural formation of Carbon-14. Describe how Carbon-14 becomes incorporated into our…
A: Carbon-14 is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8…
Q: The structure of NAD+ DOES NOT include
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Q: Define the following terms: a. Fe–S clusters b. electron transport c. CoQ d. ubisemiquinone e. UQH2
A: The electron transport chain is a series of complexes that transfer electrons from electron donors…
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A: The survival of the living organisms is dependent on various factors in which temperature is one of…
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Q: The oxidation of 1 mol of palmitic acid yields a total of _____________ mol of metabolic water.
A: Palmitic acid is a fatty acid, which has a fatty acid chain and glycerol moiety.
Q: The Miller-Urey experiment provided evidence that abiotic processes could produce organic molecules…
A: Introduction The Miller–Urey experiment was a chemical experiment that mimicked early Earth…
Q: When NAD picks up two electrons and a proton in reactions of the Krebs cycle to form NADH, the NAD+…
A: Answer
Q: Which of the statement is true regarding equilibrium? The rate of the forward reaction exceeds the…
A: Equilibrium is a stage of constant in which there is no net change in the amount of reactant and…
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Q: the energy used to obtain, transfer, and transport materials within an organism comes directly from
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Q: You label CO2 with radiolabeled 18O. After exposure of a plant adapted to a hot, dry climate to the…
A: Plants are the autotrophic organisms. They make their own food by the process of photosynthesis.
Q: True or False: Carbon fixation involves oxidation of inorganic carbon to make monosaccharides.
A: Carbon fixation involves fixation of inorganic carbon into the organic carbon by the process of…
Q: List some examples of carbon stores for each sphere.
A: Storage of Carbon --The Carbon cycle is the biogeochemical cycle by which Carbon is exchanged…
Q: Draw the major product of this reaction. Ignore any inorganic byproducts
A: HBr addition to the alkenes: HBr addition to the alkenes under the normal conditions follows…
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A: 4.5 billion years ago our planate originate from the solar system. at 1st billion…
Q: The reactions in which single-carbon atoms are transferred from one molecule to another are referred…
A: Homeostasis is the ability to maintain a constant internal environment in response to different…
Q: Explain why organic molecules that have an abundance of hydrogen are excellent cellular fuels
A: Cellular respiration is defined as a set of metabolic reactions that will occur in all living or…
Q: earth'sis composed primarily of iron and nickel.
A: Our planet Earth is divided into four layers, these areas; inner core outer core mantle thin-crust…
Q: Mention some examples of carbon stores for each sphere.
A: Carbon is stored on our planet as (1) as organic molecules in living and dead organisms found in the…
Q: Label the following equation. The parentheses represent the choices for each label (A-D). A.…
A: Photosynthesis is the process by which green plants synthesise their food from air,water sunlight…
Q: With regard to the nitrogen cycle, even though nitrogen makes up approximately 78% of our…
A: Nitrogen fixation is a process where Nitrogen in the molecular form (N2) that is present in the air…
Q: Explain the meaning of each component in the equation for thechange in free energy of a spontaneous…
A: Spontaneous-is a reaction assumed to be natural since it is a reaction without any prior action to…
Q: Indicate whether each statement describes only autotrophs, only heterotrophs, or both autotrophs and…
A: Energy is an important requirement for their survival of all living beings. On the basis of chemical…
Describe the cycle of carbon (C), nitrogen (N) or phosphorus (P) (only one) and include one paragraph overview, explaining the movement of the compounds of this element between the Earth’s spheres (including relative amounts) and how these movements are accompanied by changes in chemical forms.
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- A solution commonly used to grow plants in hydroponics is the Hoagland solution. A recipe for this solution is listed below. How many grams of NaFeDTPA are needed to prepare 500 ml of the stock solution of this chemical compound? TABLE 5.3 Composition of a modified Hoagland nutrient solution for growing plants (Part 1) Concentration Volume of stock of stock solution Concentration Final solution per liter of final solution Molecular of stock concentration of element Compound weight solution Element g mol mM g L-1 ml pM ppm Macronutrients KNO, Ca(NO),"4H,0 236.16 NH,H,PO, MgSO, 7H,0 1,000 1,000 101.10 101.10 6.0 16,000 224 236.16 4.0 K 6,000 235 1,000 1,000 115.08 115.08 2.0 Ca 4,000 160 246.48 246.49 1.0 P 2,000 62 1,000 32 Mg 1,000 24 Micronutrients KCI 74.55 25 1.864 CI 50 1.77 61.83 H,BO, MnSO, H,O ZnSO, 7H,0 CusO,"5H,0 H,MoO, (85% MoO,) 12.5 0.773 25 0.27 169.01 1.0 0.169 Mn 2.0 0.11 2.0 287.54 1.0 0.288 Zn 2.0 0.13 249.68 0.25 0.062 Cu 0.5 0.03 161.97 0.25 0.040 Mo 0.5 0.05 16.1-…Ozone in the upper atmosphere is depleted when it reacts with nitrogen oxides. The rates of the reactions of nitrogen oxides with ozone are important factors in deciding how significant these reactions are in the formation of the ozone hole over Antarctica as shown. One such reaction is the combination of nitric oxide, NO, with ozone, O3:The atmospheric ratio of peroxyacetic nitric anhydride (PAN) to PAN + inorganic nitrite varies from less than 0.1 to 0.9. High values of the ratio are associated with photo chemically aged air masses, situations where precipitation has recently occurred, and situations were unusually high nighttime nitrogen oxide concentrations are found. What do these observations tell us  about the factors affecting the relative rates of formation and removal of nitrogen oxide compounds?
- Samples of illicit “street” drugs often contain an inactive component, such as ascorbic acid (vitamin C). After obtaining a sample of cocaine, government chemists calculate the mass of vitamin C per gram of drug sample, and use it to track the drug’s distribution. For example, if different samples of cocaine obtained on the streets of New York, Los Angeles, and Paris all contain 0.6384 g of vitamin C per gram of sample, they very likely come from a common source. Do these street samples consist of a compound, element, or mixture? Explain.If you want to produce carbohydrates containing the heavy oxygen (18O) isotope,should you water your plants with H2 18O or inject C18O2 into the air?The synthesis of products is limited by the amount of reactants.(a) If one mole each of CH4, NH3, H2S, and CO2 is added to 1 literof water (= 55.5 moles of H2O) in a flask, how many moles ofhydrogen, carbon, oxygen, nitrogen, and sulfur are in the flask?(b) Looking at the molecular formula in the table, how manymoles of each element would be needed to make 1.0 mole ofglycine? (c) What is the maximum number of moles of glycine thatcould be made in that flask, with the specified ingredients, if noother molecules were made? Explain. (d) If serine or methioninewere made individually, which element(s) would be used up firstfor each? How much of each product could be made?
- The French chemist Antoine Lavoisier was elected to the French Academy of Sciences for his discovery that roasted metals weighed more than unroasted metals, due to the creation of: metal carbonates from exposure to carbon dioxide gas metal hydrides from exposure to hydrogen gas metal oxides from exposure to oxygen gas metal nitrates from exposure to nitrogen gas metal sulfides from exposure to hydrogen sulfide gasAll living things must be able to make proteins, and protein molecules always contain nitrogen. Explain how the nitrogen used for making proteins in a loin's body traveled from the atmosphere to the lion. How will it be returned to the atmosphere after the lion dies?Another fossil-fuel gas used in cooking appliances is "propane", used commonly in backyard grills and RV/camping stoves. Propane is a bigger hydrocarbon: 3 carbons single-bonded in a chain, and the remaining bonds are taken by hydrogen. Its formula is C3H8 and its structure is shown below. KEY POINT: the products are the same as the combustion of methane, but more is produced. The graphic below shows that one propane molecule reacts with 5 oxygen molecules to form molecules of carbon dioxide. C3Hg + 502 → 3CO,+ 4H,0 00O 000 SUOLDICIATEFIEETILNED I RLIANMr CASIRICTIOonL H
- The six elements that make up biomolecules aren't the six most prevalent elements on Earth. What are these 6 elements and discuss why the biomolecules' abundance isn't a factor to consider. What characteristics do these elements possess that enable them to better perform their responsibilities in the production of life-sustaining molecules?Hydrocarbons with 5 carbons (pentane) and 19 carbons (nonadecane) are liquids at room temperature. The molecules with 8, 9, and 10-carbons are "octane", "nonane", and "decane" and are common components of gasoline. The image below shows chemical equations for the combustion of the simplest hydrocarbon methane, 3-carbon propane, and 10-carbon decane. As you can see, the products are always carbon dioxide and water, just in larger amounts for larger hydrocarbons. Question: how many carbon dioxide molecules are formed from combustion of one molecule of decane? Methane CH4 + 202 → CO2 + 2H2O Propane C3H3 +502 – → 3CO2+4H2O C10 H22 + 15.502 10CO2 + 11H20 Decane -It is sometimes necessary to prepare isotopically labeled samples of organic substances for probing biological transformations and reaction mechanisms. Various sources of the radioactive mass-14 carbon isotope are available. Describe synthetic procedures by which benzoic acid, labeled with 14C at its carbonyl carbon, could be prepared from benzene and the following 14C-labeled precursors. You may use any necessary organic or inorganic reagents.(a) CH3Cl (b) CO2