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Which of the following statements regarding cyanobacteria is false?
  • a)
    Because the term “cyano” implies “greenish-blue,” cyanobacteria is sometimes known as “blue-green algae.”
  • b)
    Cyanobacteria are chemosynthetic autotrophs.
  • c)
    They produce chlorophyll, which gives them their color.
  • d)
    They also contribute to the atmosphere’s oxygen enrichment.
Correct answer is option 'C'. Can you explain this answer?
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Which of the following statements regarding cyanobacteria is false?a)B...
Understanding Cyanobacteria
Cyanobacteria are fascinating microorganisms often referred to as "blue-green algae." However, it is essential to clarify some characteristics of these organisms, especially in the context of the statements provided.
Statement Analysis
- Statement A: Cyanobacteria are sometimes referred to as "blue-green algae" because of their color, which results from the presence of chlorophyll and phycocyanin pigments. This statement is true.
- Statement B: The term "chemosynthetic" is incorrectly applied here. Cyanobacteria are primarily photosynthetic autotrophs, utilizing sunlight to produce energy. This statement is false, making it misleading.
- Statement C: This statement is true. Cyanobacteria do produce chlorophyll, specifically chlorophyll a, which is responsible for their greenish color and enables photosynthesis.
- Statement D: Cyanobacteria contribute significantly to the atmosphere's oxygen enrichment through photosynthesis, releasing oxygen as a byproduct. This statement is also true.
Conclusion
The correct answer is option 'B', as it inaccurately describes cyanobacteria as "chemosynthetic" when they are primarily photosynthetic autotrophs.
In summary, while statements A, C, and D are accurate regarding cyanobacteria, statement B contains a critical error regarding their metabolic classification. Understanding these nuances is vital for students preparing for exams like NEET.
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Community Answer
Which of the following statements regarding cyanobacteria is false?a)B...
Chlorophyll, which is found in cyanobacteria, aids in photosynthesis, which raises atmospheric oxygen levels. Blue-green algae are also known as cyanobacteria since “cyano” in cyanobacteria denotes blue-green algae. However, cyanobacteria do not appear green in color but rather blue-green due to the presence of other pigments along with chlorophyll.
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Which of the following statements regarding cyanobacteria is false?a)Because the term “cyano” implies “greenish-blue,” cyanobacteria is sometimes known as “blue-green algae.”b)Cyanobacteria are chemosynthetic autotrophs.c)They produce chlorophyll, which gives them their color.d)They also contribute to the atmosphere’s oxygen enrichment.Correct answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following statements regarding cyanobacteria is false?a)Because the term “cyano” implies “greenish-blue,” cyanobacteria is sometimes known as “blue-green algae.”b)Cyanobacteria are chemosynthetic autotrophs.c)They produce chlorophyll, which gives them their color.d)They also contribute to the atmosphere’s oxygen enrichment.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements regarding cyanobacteria is false?a)Because the term “cyano” implies “greenish-blue,” cyanobacteria is sometimes known as “blue-green algae.”b)Cyanobacteria are chemosynthetic autotrophs.c)They produce chlorophyll, which gives them their color.d)They also contribute to the atmosphere’s oxygen enrichment.Correct answer is option 'C'. Can you explain this answer?.
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