Why does NADPH absorb light at 260 nm? At 340 nm?
Q: How are the products of the light dependent reaction used in the light independent reaction?
A: Photosynthesis is a process in which green plants that the food in the form of glucose with the help…
Q: What is the overall reaction for the light reactions of photosynthesis?
A: Introduction: The process of preparing food from stored energy using sunlight is called…
Q: If the light-independent reaction can run without light, why does oxygen production (and presumably…
A: Introduction: The process of photosynthesis occurs in two stages, the first phase is called the…
Q: What color light does Chlorophyll reflect?
A: Chlorophyll is a pigment present in all green plants and a few other organisms. It is required for…
Q: We perform our measurements for KHP at 281 nm. Would we get the same results for pathlength at 250…
A: Absorption of light by any substance depends upon many factors like light wavelength, the…
Q: Make one table to show: At what wavelengths do the 3 photosynthetic pigments absorb the most (i.e.,…
A: Green plants are capable of producing their own food with the help of solar energy. They have…
Q: Which of the following is not involved in cyclic cyclic photophosphorylation? Group of answer…
A: During photosynthesis the photoexcited electron that is energized by light passes from the primary…
Q: To reduce six molecules of carbon dioxide to one molecule of glucose via photosynthesis, how many…
A: To reduce six molecules of carbon dioxide to one molecule of glucose via photosynthesis 18 ATP and…
Q: Describe the light reactions.
A: Photosynthesis is a biochemical process that converts carbon dioxide and water to glucose and oxygen…
Q: In general terms, how do the light-independent reactions differ from the light - dependent…
A: Photosynthesis is the process where light energy and carbondioxide and water is used a raw material…
Q: What does the light reactions and light-independent reactions of photosynthesis have in common?
A: Answer: Introduction: Photosynthesis is the phenomenon utilized by plants, algae and certain…
Q: Why is cyclic electron flow important during photosynthesis even though linear electron flow also…
A: Photosynthesis is a process that occurs in plants and other chlorophyll-containing organisms. As it…
Q: What is the correct sequence of steps in the light reaction? ADP + Pi --> ATP oxidation of water…
A: In plants, photosynthesis occurs in two stages one is light-dependent and the other is…
Q: Chlorophyll reflects green light (540–560 nm) and absorbs other wavelengths. What biologically…
A: Chlorophyll is the primary pigment used in photosynthesis, which reflects green light (540–560 nm)…
Q: What is ADP phosphorylation? What respectively are photophosphorylation and oxidative…
A: Introduction - The addition of phosphate to an organic substance is known as phosphorylation.…
Q: THE LIGHT DEPENDEN REACTION MUST OCCUR BEFORE THE LIGHT INDEPENDENT REACTION TRUE OR FALSE?
A: Photosynthesis is process of synthesis of glucose monitoring molecule from inorganic materials like…
Q: What is the structural difference between NADH and NADPH?
A: NADH refers to "nicotinamide adenine dinucleotide (NAD) + hydrogen (H)". NADPH refers to…
Q: How many moles of ATP could theoretically be synthesized under standard conditions using the energy…
A: Photon is an elementary particle. These particles are massless and in vacuum, they move at the speed…
Q: What does the d stand for in Nadph?
A: NADPH takes part in an enzymatic reaction as a cofactor. It donates hydrogen and electrons to the…
Q: Describe the effect of photooxidation on the redox reactions summarized in the Z-scheme.
A: Photosynthesis is the process through which plants and some purple sulfur bacteria and cyanobacteria…
Q: Is it reasonable to list standard reduction potentials (see Chapter 20) for the reactions of…
A: Photosynthesis is the process used by plants and other organisms to convert light energy into…
Q: Why does CO2 depress photorespiration?
A: Photorespiration : It is a respiratory process in many higher plants by which they take up oxygen…
Q: One of the following is most accurate about relative redox potential of different electron carriers.…
A: Electron carriers are molecule that is capable of accepting one or more electrons (acceptor) from…
Q: 100 50 - 400 450 500 550 600 650 700 Wavelength (nm) In the absorption spectrum shown above, what…
A: Photopigment is the pigment present in plants for absorption of light in different wavelengths .The…
Q: Why do the reaction centers have different pigments rather than only the chlorophyls?…
A:
Q: What is CAM photosynthesis and why is it better than either C3 or C4 photosynthesis in desert or…
A: C3, C4, and Crassulacean acid metabolism (CAM) are the process of photosynthesis in which plants use…
Q: In cyclic photophosphorylation, it is estimated that two electrons must be passed through the cycle…
A: Cyclic photophosphorylation is the process in which cycling of electrons occurs through a set of…
Q: How, then, do plants that grow in hot climates ,such as sugar cane, prevent very high rates of…
A: Photorespiration or C2 is a process of plant metabolism, which uses the enzyme RuBisCO to oxidize…
Q: Briefly explain photolysis.
A: Light energy is a form of electromagnetic radiation. It consists of photons which are generated when…
Q: Explain the reduction potential of the NAD+/NADH couple?
A: NAD+ stands for nicotinamide adenine dinucleotide. It is used to transfer electrons from one…
Q: H218O is added to a suspension of chloroplasts capable of photosynthesis.Where does the label appear…
A: Photosynthesis is a vital process in primary producers, plants. Plants use light energy and carbon…
Q: What are the P:O ratios for electrons donated by matrix NADH and by succinate?
A: The P:O ratios fro electrons donated by matrix NADH is 2.5.
Q: Phenol red reaction is orange on maple leaf, is it alive?
A: The measure of free hydrogen ion concentration is referred to as pH. The greater the amount of…
Q: In cyclic photophosphorylation, it is estimated that two electrons must be passed through the cycle…
A: Calculating the E (total energy) produced by the 700 nm light: We know, E = h c/λ Where, h (Planck’s…
Q: In terms of aerobic cellular respiration, how does this photo works?
A: Cellular respiration is the process by which organisms mix oxygen with food molecules, transferring…
Q: In the light reactions, what is the initial electron donor?Where do the electrons finally end up?
A: The light dependent reactions are the reactions, which require light for the initiation of chemical…
Q: Why is the P/O ratio for NADH not a whole number?
A: The Phosphate/oxygen ratio (P/O) refers tot the amount of ATP produced from the movement of two…
Q: Why is the cyclic light reaction important?
A: In certain cases, photoexcited electrons follow cyclic path, which involves PSI but not PSII. In…
Q: What fraction of the energy of 700-nm light absorbed by photosystem I is trapped as high-energy…
A: In the light reaction, both photosystems I and II are involved. The PS-II absorbs 680nm range light…
Q: would you expect an absorption spectrum graph of chlorophyll (green plant pigment involved in…
A: During propagation, light behaves as a wave and as it interacts with any matter it behaves as a…
Q: Where does carbon dioxide fixation take place in the cellwith reference to the light-dependent…
A: The dark reaction of photosynthesis involves reduction and fixation of carbon. In all oxygenic…
Q: When running cycle photophosphorylation and passaging electrons from PSI to two fully reduced PQH2s,…
A: Photophosphorylation is basically using light energy to convert ADP to ATP During photosynthesis…
Q: When electrons flow from the NAD+ /NADH conjugate redox pair to the 1/2 O2/H2O redox pair, does the…
A: ATP is the chief molecule that provides energy when the high energy in the ATP molecules is broken…
Q: How do the light reactions communicate with the dark reactions to regulate this crucial process of…
A: Plants are autotrophs. They can synthesize their own food in the presence of light. This process of…
Q: What is midpoint potential of redox active centers in photosynthetic organisms? What factors affect…
A: Note- as we are allowed to do only one question at a time. I'm posting answer of first question.…
Q: Why oil is used in experiments for measuring the transpiration?
A: Transpiration is the process by which plants loose water in the form of water vapor through a…
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- Calculate the biochemical standard cell potential for the oxidation of NADH by molecular oxygen O2 + 2NADH + 2 H+ → 2H2O + 2NAD+Need help Which of the following statements is most correct? Explain A. NAD/NADH are involved in catabolic reactions. B. In plants the major source of NADH is from ferredoxin formed from the high energy electrons generated by Photosystem II. C. Large molecules are built using catabolic reactions. D. NADP is not found in animal cells.Need help ASAP. Describe the steps by which the F0 portion of the ATP synthase harnesses the proton-motive force to help synthesize ATP. What would you expect to observe if the proton gradient were reversed? Explain your answer.
- Answers can be kept very simple and concise Photosynthesis: A) Is NADPH consumed during the light reactions or Calvin cycle? What is it’s energy used to do? Protons move across the thylakoid membrane in both directions during the light reactions of photosynthesis. B) When protons move in to the thylakoid, are they moving up or down their concentration gradient? (From low to high concentration or from high to low concentration?) C) Since protons are charged, they cannot freely diffuse across a plasma membrane. What protein(s) facilitate the transport of protons in to the thylakoid?BioKemi!! Make a theoretical calculation of how many ATP molecule of acetyl-CoA to Carbon dioxide and water if the entire proton gradient across the mitochondrias inner membrane can be used for ATP production and when the ATP synthase has 15 c-subunits? All steps in the calculations must be reported Hand written solution otherwise down voteReductive power. What ratio of NADPH to NADP+ is required to sustain [GSH] = 10 mM and [GSSG] = 1 mM ? Use the redox potentials given in Table 18.1 .
- a) Calculate the enzyme and specific activity of a reaction with 3 μM Hsp90 using the following information: The rate is measured in a spectrophotometer as 0.028 OD units/min in a 1 ml reaction volume. The absorbance was detected at 340nm and the extinction coefficient for NADH at this wavelength is 6200 L M-1 min-1 and the molecular mass of Hsp90 is 82.7 kDa. The rate of NADH utilisation is equivalent to the rate of ATP utilised by Hsp90. Show all your calculations and the units for your answers. b) Calculate the turnover number for the reaction described in (a) aboveThe compound Carbonyl cyanide-p-trifluoromethoxyphenyl hydrazone (FCCP) acts as an uncoupler of electrochemical gradients (in both mitochondria and chloroplasts) by shuttling protons across membranes. Predict the effect of a high dose of FCCP on the synthesis of ATP and NADPH in photosynthesis. Rationalize your answersAnswer separately with prediction and reason please thank you so muchPlease explain thoroughly. Thanks. 1. Would Hill reaction proceed at a significantly faster rater if... a) Reaction proceeded at a temperature 10 degrees centigrade HIGHER. Why or why not? b) Reaction is conducted at HIGHER light intensitites. Why or why not? 2. Does measuring Hill reaction accurately measure the entire photosynthetic process? Why or why not?
- . VISUAL SKILLS Name the molecules that conserve mostof the energy from the redox reactions of the citric acidcycle (see Figure 9.12). How is this energy converted to aform that can be used to make ATP?HIGH SCHOOL BIOLOGY QUESTION - please provide a junior/senior high school level response. Compare and contrast the electron transport chain in the mitochondrion v.s. chloroplast in terms of the electron carriers used to "drop off" electrons, the direction of H+ pumping, the creation of an electrochemical gradient, the synthesis of ATP, the final electron exceptor, etc. How are they similar? How are they different?Photosyntheis related question (s): When protons move out of the thylakoid, are they moving up or down their concentration gradient? (From low to high concentration or from high to low concentration?) What protein(s) facilitate the transport of protons out of the thylakoid? We can write the formula for photosynthesis as follows: 6 H2O + 6 CO2 + light energy → C6H12O6 + 6 O2 How would you write a formula for the light reactions? Include ATP, ADP, NADP and NADPH as relevant? How would you write a formula for the Calvin cycle? Include ATP, ADP, NADP and NADPH as relevant.