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Which is the evidence to show that oxygen released in photosynthesis comes from water :–
- a)Isotopic oxygen (O18) supplied as H2O appears in the O2 released in photosynthesis.
- b)Activated chloroplast in water released O2 if supplied potassium ferrocyanide or some other reducing agent in the absence of CO2.
- c)Photosynthetic bacteria use H2S and CO2 to make carbohydrates, H2O and sulphur.
- d)All of the above.
Correct answer is option 'D'. Can you explain this answer?
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Which is the evidence to show that oxygen released in photosynthesis c...
Evidence that oxygen released in photosynthesis comes from water:
There are several pieces of evidence that support the notion that oxygen released in photosynthesis comes from water. The correct answer to this question is option D, which states that all of the provided options are evidence for this phenomenon. Let's examine each piece of evidence in detail:
a) Isotopic oxygen (O18) supplied as H2O appears in the O2 released in photosynthesis:
Isotopic oxygen (O18) can be used as a tracer to determine the origin of oxygen released during photosynthesis. When O18-labeled water is supplied to plants, the O18 is incorporated into the oxygen gas (O2) released as a byproduct of photosynthesis. This indicates that the oxygen present in the released O2 molecules originates from the water molecules supplied to the plant.
b) Activated chloroplast in water released O2 if supplied potassium ferrocyanide or some other reducing agent in the absence of CO2:
This evidence demonstrates that in the absence of carbon dioxide (CO2), activated chloroplasts can still release oxygen (O2) when supplied with a reducing agent like potassium ferrocyanide. This suggests that the oxygen released by chloroplasts does not solely come from CO2 but also from another source, which is water.
c) Photosynthetic bacteria use H2S and CO2 to make carbohydrates, H2O, and sulfur:
Photosynthetic bacteria, such as purple sulfur bacteria, can utilize hydrogen sulfide (H2S) and carbon dioxide (CO2) to produce carbohydrates. In this process, oxygen (O2) is released as a byproduct, indicating that the oxygen originates from the water (H2O) present in the bacteria's environment.
Summary:
All three pieces of evidence provided support the idea that oxygen released in photosynthesis comes from water. The isotopic labeling of water molecules demonstrates the incorporation of oxygen from water into the released O2. The release of oxygen by activated chloroplasts in the absence of CO2 indicates that water is a source of oxygen. Additionally, the utilization of H2S and CO2 by photosynthetic bacteria to produce oxygen and carbohydrates further supports the conclusion that water is the source of the released oxygen in photosynthesis. Therefore, the correct answer is option D, as it includes all the provided evidence.
There are several pieces of evidence that support the notion that oxygen released in photosynthesis comes from water. The correct answer to this question is option D, which states that all of the provided options are evidence for this phenomenon. Let's examine each piece of evidence in detail:
a) Isotopic oxygen (O18) supplied as H2O appears in the O2 released in photosynthesis:
Isotopic oxygen (O18) can be used as a tracer to determine the origin of oxygen released during photosynthesis. When O18-labeled water is supplied to plants, the O18 is incorporated into the oxygen gas (O2) released as a byproduct of photosynthesis. This indicates that the oxygen present in the released O2 molecules originates from the water molecules supplied to the plant.
b) Activated chloroplast in water released O2 if supplied potassium ferrocyanide or some other reducing agent in the absence of CO2:
This evidence demonstrates that in the absence of carbon dioxide (CO2), activated chloroplasts can still release oxygen (O2) when supplied with a reducing agent like potassium ferrocyanide. This suggests that the oxygen released by chloroplasts does not solely come from CO2 but also from another source, which is water.
c) Photosynthetic bacteria use H2S and CO2 to make carbohydrates, H2O, and sulfur:
Photosynthetic bacteria, such as purple sulfur bacteria, can utilize hydrogen sulfide (H2S) and carbon dioxide (CO2) to produce carbohydrates. In this process, oxygen (O2) is released as a byproduct, indicating that the oxygen originates from the water (H2O) present in the bacteria's environment.
Summary:
All three pieces of evidence provided support the idea that oxygen released in photosynthesis comes from water. The isotopic labeling of water molecules demonstrates the incorporation of oxygen from water into the released O2. The release of oxygen by activated chloroplasts in the absence of CO2 indicates that water is a source of oxygen. Additionally, the utilization of H2S and CO2 by photosynthetic bacteria to produce oxygen and carbohydrates further supports the conclusion that water is the source of the released oxygen in photosynthesis. Therefore, the correct answer is option D, as it includes all the provided evidence.
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Which is the evidence to show that oxygen released in photosynthesis c...
The Z-scheme represents the linear flow of electrons from water to NADP⁺ during the light reactions of photosynthesis. This model illustrates how the energy from sunlight is used to drive the electrons' movement across the photosystems, ultimately leading to the production of ATP and NADPH. Interesting fact: The Z-scheme is named for its characteristic shape when the energy levels of the electron transport components are plotted, resembling the letter "Z."
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Which is the evidence to show that oxygen released in photosynthesis comes from water :a)Isotopic oxygen (O18) supplied as H2O appears in the O2 released in photosynthesis.b)Activated chloroplast in water released O2 if supplied potassium ferrocyanide or some other reducing agent in the absence of CO2.c)Photosynthetic bacteria use H2S and CO2 to make carbohydrates, H2O and sulphur.d)All of the above.Correct answer is option 'D'. Can you explain this answer?
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Which is the evidence to show that oxygen released in photosynthesis comes from water :a)Isotopic oxygen (O18) supplied as H2O appears in the O2 released in photosynthesis.b)Activated chloroplast in water released O2 if supplied potassium ferrocyanide or some other reducing agent in the absence of CO2.c)Photosynthetic bacteria use H2S and CO2 to make carbohydrates, H2O and sulphur.d)All of the above.Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which is the evidence to show that oxygen released in photosynthesis comes from water :a)Isotopic oxygen (O18) supplied as H2O appears in the O2 released in photosynthesis.b)Activated chloroplast in water released O2 if supplied potassium ferrocyanide or some other reducing agent in the absence of CO2.c)Photosynthetic bacteria use H2S and CO2 to make carbohydrates, H2O and sulphur.d)All of the above.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which is the evidence to show that oxygen released in photosynthesis comes from water :a)Isotopic oxygen (O18) supplied as H2O appears in the O2 released in photosynthesis.b)Activated chloroplast in water released O2 if supplied potassium ferrocyanide or some other reducing agent in the absence of CO2.c)Photosynthetic bacteria use H2S and CO2 to make carbohydrates, H2O and sulphur.d)All of the above.Correct answer is option 'D'. Can you explain this answer?.
Which is the evidence to show that oxygen released in photosynthesis comes from water :a)Isotopic oxygen (O18) supplied as H2O appears in the O2 released in photosynthesis.b)Activated chloroplast in water released O2 if supplied potassium ferrocyanide or some other reducing agent in the absence of CO2.c)Photosynthetic bacteria use H2S and CO2 to make carbohydrates, H2O and sulphur.d)All of the above.Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which is the evidence to show that oxygen released in photosynthesis comes from water :a)Isotopic oxygen (O18) supplied as H2O appears in the O2 released in photosynthesis.b)Activated chloroplast in water released O2 if supplied potassium ferrocyanide or some other reducing agent in the absence of CO2.c)Photosynthetic bacteria use H2S and CO2 to make carbohydrates, H2O and sulphur.d)All of the above.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which is the evidence to show that oxygen released in photosynthesis comes from water :a)Isotopic oxygen (O18) supplied as H2O appears in the O2 released in photosynthesis.b)Activated chloroplast in water released O2 if supplied potassium ferrocyanide or some other reducing agent in the absence of CO2.c)Photosynthetic bacteria use H2S and CO2 to make carbohydrates, H2O and sulphur.d)All of the above.Correct answer is option 'D'. Can you explain this answer?.
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