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Consider the following statements.
- The ocean over regions with high concentrations of phytoplankton will appear blue-green to green, depending upon the type and density of the phytoplankton population there.
- Phytoplankton are microscopic marine algae that contain chlorophyll.
- Chlorophyll absorbs the green portions of the light spectrum.
How many of the above statements are correct?
- a)Only one
- b)Only two
- c)All three
- d)None
Correct answer is option 'B'. Can you explain this answer?
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Consider the following statements. The ocean over regions with high co...
Statement 3 is incorrect.
- Phytoplankton are microscopic marine algae that contain the green-coloured pigment chlorophyll. The pigment helps them absorb sunlight, which they use to capture carbon dioxide from the atmosphere and convert it into sugars. Moreover, chlorophyll absorbs the red and blue portions of the light spectrum — or photosynthesis — and reflects green light.
- “So, the ocean over regions with high concentrations of phytoplankton will appear as certain shades, from blue-green to green, depending upon the type and density of the phytoplankton population there,”
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Consider the following statements. The ocean over regions with high co...
Statement 1: The ocean over regions with high concentrations of phytoplankton will appear blue-green to green, depending upon the type and density of the phytoplankton population there.
Statement 2: Phytoplankton are microscopic marine algae that contain chlorophyll.
Statement 3: Chlorophyll absorbs the green portions of the light spectrum.
Explanation:
Statement 1 is correct: The ocean appears blue or green depending on the concentration of phytoplankton present in the water. Phytoplankton are microscopic organisms that contain pigments, including chlorophyll, which influence the color of the water. In regions with high concentrations of phytoplankton, the water may appear blue-green to green due to the pigments present in these organisms.
Statement 2 is correct: Phytoplankton are indeed microscopic marine algae. They are the primary producers in the oceanic food chain and are responsible for the majority of the Earth's oxygen production through the process of photosynthesis.
Statement 3 is incorrect: Chlorophyll actually absorbs the red and blue portions of the light spectrum, while reflecting or transmitting the green portions. This is why plants and phytoplankton, which contain chlorophyll, appear green to our eyes. The absorption of red and blue light by chlorophyll allows for photosynthesis to occur, as these wavelengths contain the necessary energy for the process.
Therefore, only two of the given statements are correct: Statement 1 and Statement 2.
Statement 2: Phytoplankton are microscopic marine algae that contain chlorophyll.
Statement 3: Chlorophyll absorbs the green portions of the light spectrum.
Explanation:
Statement 1 is correct: The ocean appears blue or green depending on the concentration of phytoplankton present in the water. Phytoplankton are microscopic organisms that contain pigments, including chlorophyll, which influence the color of the water. In regions with high concentrations of phytoplankton, the water may appear blue-green to green due to the pigments present in these organisms.
Statement 2 is correct: Phytoplankton are indeed microscopic marine algae. They are the primary producers in the oceanic food chain and are responsible for the majority of the Earth's oxygen production through the process of photosynthesis.
Statement 3 is incorrect: Chlorophyll actually absorbs the red and blue portions of the light spectrum, while reflecting or transmitting the green portions. This is why plants and phytoplankton, which contain chlorophyll, appear green to our eyes. The absorption of red and blue light by chlorophyll allows for photosynthesis to occur, as these wavelengths contain the necessary energy for the process.
Therefore, only two of the given statements are correct: Statement 1 and Statement 2.
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Consider the following statements. The ocean over regions with high concentrations of phytoplankton will appear blue-green to green, depending upon the type and density of the phytoplankton population there. Phytoplankton are microscopic marine algae that contain chlorophyll. Chlorophyll absorbs the green portions of the light spectrum.How many of the above statements are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer?
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Solutions for Consider the following statements. The ocean over regions with high concentrations of phytoplankton will appear blue-green to green, depending upon the type and density of the phytoplankton population there. Phytoplankton are microscopic marine algae that contain chlorophyll. Chlorophyll absorbs the green portions of the light spectrum.How many of the above statements are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
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