Why do we describe the path of electrons in photosynthesis as starting in photosystem II and ending in photosystem I? In other words, why is the nomenclature “backward”
Q: Why is the nickname "dark reactions" not entirely correct for the chemical stage of photosynthesis?
A: Introduction - 6CO2 + 6H2O = C6H12O6 + 6O2 is a typical representation of photosynthesis. This…
Q: Why does Photosytem II comes first before Photosystem I?
A: Photosystems are structural and functional elements of protein complexes involved in an important…
Q: Why do plants, algae, and some bacteria need to do photosynthesis?
A: Photosynthesis is necessary for all life on Earth; it is required by both plants and animals. It is…
Q: i) Describe the process that occur in this photosystem when a pigment molecule absorbs a photon…
A: Photosynthesis is a process in which glucose is synthesized and oxygen is liberated after…
Q: Put the events in correct order: + A photon of light excites a pigment molecule in photosystem I…
A: Photosynthesis is a phenomenon by which green living plants make their food (starch)in the presence…
Q: The key event in photosystem 1 is the liberation of a blank into the electron transport chain
A: Plants are autotrophs. They are called so because they are not dependent on other organisms and can…
Q: What is the general chemical equation of photosynthesis? Why doesn't that equation clearly show the…
A: Photosynthesis is the process by which green plants (autotrophs) fix CO2 into organic form…
Q: __________ is the final electron acceptor in photosystem I.
A: Photosystems are large complexes of proteins and light-absorbing pigments that are optimized to…
Q: . Inside of the chloroplast, chlorophyll molecules absorb light and convert light energy to chemical…
A: The process by which green plants and certain other organisms transform light energy into chemical…
Q: There are two photosystems ( I and II) involved in the light-dependent reactions of photosynthesis.…
A: Photosystems are functional and structural units of protein complexes involved in photosynthesis…
Q: What is implied about the energyrequirements of photosystems I and II by the fact that there is a…
A: Photosynthesis is the process by which green plants and certain other organisms transform light…
Q: Why is it true that the electrons from photolysis are absolutely required for photosynthesis?
A: Photosynthesis is a process in which photosynthetic autotrophs can obtain energy via light energy.…
Q: Name the electron carriers that transport electrons from photosystem II to photosystem I. Which ones…
A: Photosynthesis is the process by which green plants and several other organisms transform light…
Q: What role does photosynthesis play in bigger cycles? Explain how photosynthesis fixes carbon and how…
A: Photosynthesis' fundamental job is to transform sunlight into chemical energy, which is then saved…
Q: Why photosynthesis is considered as a process supporting all life on Earth?
A: Photosynthesis is a chemical process where green plants and other organisms transform light energy…
Q: Photosystem II uses sunlight to strip electrons (and protons) away from which of the following…
A: Photosystem II is the protein complex in light-dependent reactions of photosynthesis. Photosystem II…
Q: In what ways is nonoxygenated photosynthesis that uses H2S as an electron source similar to oxygenic…
A: Photosynthesis is the process of formation of energy sources with the help of an electron source and…
Q: Name the process of conversion of ADP into ATP during the first phase of photosynthesis.
A: Photosynthesis is a process in which the photosynthetic organisms like plants and some bacteria use…
Q: If the sun randomly went dark today, what part(s) of photosynthesis would be directly affected?…
A: Photisynthesis is the process by which plants and certain organisms converts sunlight into chemical…
Q: Why is photorespiration considered an evolutionary artifact?
A: Photorespiration alludes to a cycle in the metabolism of plants where the protein RuBisCO oxygenates…
Q: Describe the differences in color between the leaf which was fully exposed to sunlight and the one…
A: Since you have asked multiple question, we will solve the first one for you. If you want any…
Q: The final electron acceptor for electrons for photosystem I is O NADP+ carbon dioxide chlorophyll in…
A: Photosynthesis is the process of synthesizing the food in presence of Sunlight, carbondioxide and…
Q: Summarize the starting and ending products for each step in the light-dependent reactions:…
A: Light-dependent reactions These reactions use light energy to make two molecules needed for the…
Q: The three phases of the photosynthetic dark reactions are ond
A: * Calvin cycle is called as dark Reaction as thick cycle is main pathway for dark reactions. *The…
Q: Place the following steps of the Light-Reactions of Photosynthesis in order.…
A: Photosynthesis is plants occur in two stages. One involves light reactions and other involves dark…
Q: Excited electrons (and hydrogen ions) in Photosystem 2 go through an electron transport system, but…
A: Photosynthesis is a plant physiological process in which chlorophyll containing organisms produce…
Q: How do the following features improve the effiency of photosynthesis? A. the presence of accessory…
A: The mechanism through which green plants and algae receive their nutrition is known as…
Q: Which of the following are products of the Calvin cycle that are then used as reactants in the light…
A: 6CO2 + 12 H20 gives 6 O2 and glucose molecule (1) . So reactants are CO2 and H20
Q: How do we know that C4 photosynthesis suppresses photorespiration?
A: The mechanism by which green plants and some other lower living beings make their food in the…
Q: how essential is the light- dependent reaction stage of photosynthesis in the Calvin cycle?
A: Plants are autotrophs. They are called so because they are not dependent on other organisms and can…
Q: What is common to both photosystems I and II? O Both involve the generation of oxygen Both involve…
A: Photosynthesis is the process by which chlorophyll containing organisms produce simple organic…
Q: In photosystem I and II, an electron will
A: Photosynthesis occurs in two phases - 1. Light reaction of photosynthesis is dependent on light.…
Q: What are the two phases of photosynthesis? What are the important products in photosynthesis?…
A: Photosynthesis is a process in which light energy is utilized to fix carbon and produce…
Q: In a scientific experiment, thylakoids put in an acidic solution and then transfered to a basic…
A: The light-dependent reaction of photosynthesis contains two pigments. The photosystem I and…
Q: Which of the following is characteristic of Photosystem I but NOT Photosystem I1? Select one: O It…
A: Photosystems are functional units of photosynthetic protein complexes that are involved in the…
Q: Which of the following statements is/are TRUE for photosynthesis? The e- moves from H20 to NADP+.…
A: Photosynthesis occurs in two phases- light phase and light independent phase (commonly known as dark…
Q: How many hydrogen ions are taken from the stroma and added to the lumen during the light-reaction of…
A: Photosynthesis is a process by which autotrophic organisms prepare their own food by using sunlight.…
Q: What substrate of photosynthesis is used during the Calvin cycle?
A: Photosynthesis is a vital process for all plants in order to survive. Plants use the light energy…
Q: Which of the following approaches would be the best way to detect the lack of photosystem II in some…
A: Determine whether they produce O2 in the light.
Q: The Calvin cycle produces sugar from carbon dioxide. How many turns of the Calvin cycle will it take…
A: Answer The Calvin cycle is also known as the reductive pentose phosphate cycle is a series of…
Q: When elodea releases oxygen, is it a light-dependent reaction or is it the Calvin cycle?
A: Plants are non-motile living beings that shows the capacity of producing their own food utilizing…
Q: Why is the spatial separation of photosynthesis within the chloroplast important?
A: Photosystems embedded in the thylakoid membrane are pigment-protein complexes, which transform the…
Q: Do all the chlorophyll molecules in a photosynthetic reaction center play the same roles in the…
A: Chlorophyll molecule : It consists of a central magnesium atom surrounded by a nitrogen-containing…
Q: Why does it take three turns of the Calvin cycle to produce G3P, the initial product of…
A: The Calvin cycle which is sometimes called the Benson-Calvin cycle describes the chemical events…
Q: Which of the following shows the path of electron flow during photosynthesis? Question 5 options:…
A: Photosynthesis is a process by which the carbon dioxide is converted into carbohydrates, and it…
Why do we describe the path of electrons in photosynthesis as starting in photosystem II and ending in photosystem I? In other words, why is the nomenclature “backward”
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- What is the overall purpose of the light reactions in photosynthesis?Which of the following shows the path of electron flow during photosynthesis? Question 5 options: photosystem II → cyt b6f → photosystem I cyt b6f → photosystem I → photosystem II photosystem I → photosystem II → cyt b6f cyt b6f → photosystem II → photosystem I photosystem I → cty b6f → photosystem II1) The light reactions begin with sunlight striking a photosystem. Which photosystem is this and what happens to the electrons there? 2) What happens to this first photosystem to prepare it to become activated by additional sunlight? 3) Why are there two different photosystems in the light reactions. 4) Where do these electron reside at the end of the Calvin Cycle (dark reactions)?
- What is the general chemical equation of photosynthesis? Why doesn't that equation clearly show the real origin of the molecular oxygen liberated?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 C6H1206There are two photosystems ( I and II) involved in the light-dependent reactions of photosynthesis. What is the functional difference between these two photosystems?
- In the photosynthesis lab, a group of students found that in the blue light condition, there was a change in absorbance (ΔA620) of 0.324 in extracted spinach chloroplasts. The students later went on a hike and located a plant they had never seen before and were interested in how the photosynthesis rates would compare to their experiment with spinach chloroplasts. They extracted chloroplasts of the unknown green-leaved plant and exposed them to the same experimental conditions as before. The students calculated the ΔA620 to be 0.100. Which plant (spinach or unknown) has the highest rate of photosynthesis? Explain your answer using evidence, being sure to demonstrate your understanding of the dependent variable.Excited electrons (and hydrogen ions) in Photosystem 2 go through an electron transport system, but these electrons (and hydrogen ions) must be replaced in the pigments. How are these electrons (and hydrogen ions) replaced? In other words, what is the ultimate origin of these electrons (and hydrogen ions) and what is the important byproduct of the reaction that provides these electrons (and hydrogen ions)?For most plants, two distinct photosystems (Photosystem I and Photosystem II) work together in series during photosynthesis. These photosystems are complexes of proteins and pigment molecules. Statement 1: Photosystem I has an absorption maximum of 680 nm, whereas Photosystem II has an absorption maximum of 700 nm. Statement 2: The special pair of chlorophyll a molecules in the reaction center of photosystem I is designated as P700, whereas the special pair of chlorophyll a molecules in the reaction center of photosystem II is designated as P680. Statement 1 is true. Statement 2 is false. Statement 1 is false. Statement 2 is true. Both statements are true. Both statements are false.
- In the light-dependent reaction of photosynthesis, what specifically happens in the electron transport chain between Photosystem II and Photosystem I? The excited electron accepted by the primary acceptor in Photosystem II is transferred to pheophytin and plastoquinones, then to cytochrome complex, and finally to plastocyanin. Plastocyanin then transfers the electron to the P700 in the reaction center complex of Photosystem I. The excited electron accepted by the primary acceptor in Photosystem I is transferred to pheophytin and plastoquinones, then to cytochrome complex, and finally to plastocyanin. Plastocyanin then transfers the electron to the P700 in the reaction center complex of Photosystem II. The excited electron accepted by the primary acceptor in Photosystem I is transferred to plastocyanin, then to cytochrome complex, and finally to pheophytin and plastoquinones. Plastoquinone then transfers the electron to the P700 in the reaction center complex of Photosystem II.…There are two photosystems involved in the light reaction of photosynthesis. Both take upenergy from the sun in the form of light.A. Where are the photosystems located and what is the name of the organelle? B. Where does the energy that the photosystems take up, go? Describe for eachphotosystem WHERE the energy ends up at the end of the light reactions. In otherwords, what products contain the energy from which photosystem at the end ofthe light reaction?What is meant by the "light" and "dark" cycles of photosynthesis?
