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Which among the following is incorrect about Cyanobacteria?
- a)The word cyano means greenish-blue because of which cyanobacteria is also called as blue-green algae
- b)Cyanobacteria are chemosynthetic autotrophs
- c)The colour of cyanobacteria is due to presence of chlorophyll
- d)Cyanobacteria help in enriching oxygen levels in the atmosphere
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Which among the following is incorrect about Cyanobacteria?a)The word ...
- Cyanobacteria contain chlorophyll which helps to perform photosynthesis and in turn enrich the oxygen levels in the atmosphere.
- The word “cyano” in cyanobacteria means blue-green algae and therefore they are also called as blue-green algae.
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Most Upvoted Answer
Which among the following is incorrect about Cyanobacteria?a)The word ...
Cyanobacteria, also known as blue-green algae, are a diverse group of photosynthetic bacteria that are capable of performing oxygenic photosynthesis. They are found in various habitats including freshwater, marine, and terrestrial environments. Cyanobacteria play important roles in ecosystems and have had a significant impact on the Earth's atmosphere throughout history.
Explanation:
a) The word cyano means greenish-blue because of which cyanobacteria is also called as blue-green algae: This statement is correct. The term "cyanobacteria" is derived from the Greek word "kyanós," which means dark blue or greenish-blue. This is because many cyanobacteria possess pigments that give them a bluish-green color, hence the name "blue-green algae."
c) The color of cyanobacteria is due to the presence of chlorophyll: This statement is correct. Cyanobacteria contain pigments, including chlorophyll a and phycobilins, which contribute to their color. Chlorophyll a is responsible for the green color, while phycobilins, such as phycocyanin and phycoerythrin, give cyanobacteria the blue and red hues.
d) Cyanobacteria help in enriching oxygen levels in the atmosphere: This statement is correct. Cyanobacteria are photosynthetic organisms that release oxygen as a byproduct of their metabolic processes. Through oxygenic photosynthesis, cyanobacteria contribute significantly to the production of atmospheric oxygen, making them important contributors to the oxygen levels in the atmosphere.
b) Cyanobacteria are chemosynthetic autotrophs: This statement is incorrect. Chemosynthetic autotrophs are organisms that obtain energy by synthesizing organic compounds from inorganic substances using chemical energy, rather than relying on sunlight for photosynthesis. Cyanobacteria, on the other hand, are photosynthetic autotrophs, meaning they use sunlight to convert carbon dioxide and water into organic compounds, while releasing oxygen as a byproduct.
In conclusion, the incorrect statement about cyanobacteria is that they are chemosynthetic autotrophs (option B). They are actually photosynthetic autotrophs that contribute to the oxygen levels in the atmosphere.
Explanation:
a) The word cyano means greenish-blue because of which cyanobacteria is also called as blue-green algae: This statement is correct. The term "cyanobacteria" is derived from the Greek word "kyanós," which means dark blue or greenish-blue. This is because many cyanobacteria possess pigments that give them a bluish-green color, hence the name "blue-green algae."
c) The color of cyanobacteria is due to the presence of chlorophyll: This statement is correct. Cyanobacteria contain pigments, including chlorophyll a and phycobilins, which contribute to their color. Chlorophyll a is responsible for the green color, while phycobilins, such as phycocyanin and phycoerythrin, give cyanobacteria the blue and red hues.
d) Cyanobacteria help in enriching oxygen levels in the atmosphere: This statement is correct. Cyanobacteria are photosynthetic organisms that release oxygen as a byproduct of their metabolic processes. Through oxygenic photosynthesis, cyanobacteria contribute significantly to the production of atmospheric oxygen, making them important contributors to the oxygen levels in the atmosphere.
b) Cyanobacteria are chemosynthetic autotrophs: This statement is incorrect. Chemosynthetic autotrophs are organisms that obtain energy by synthesizing organic compounds from inorganic substances using chemical energy, rather than relying on sunlight for photosynthesis. Cyanobacteria, on the other hand, are photosynthetic autotrophs, meaning they use sunlight to convert carbon dioxide and water into organic compounds, while releasing oxygen as a byproduct.
In conclusion, the incorrect statement about cyanobacteria is that they are chemosynthetic autotrophs (option B). They are actually photosynthetic autotrophs that contribute to the oxygen levels in the atmosphere.
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Which among the following is incorrect about Cyanobacteria?a)The word cyano means greenish-blue because of which cyanobacteria is also called as blue-green algaeb)Cyanobacteria are chemosynthetic autotrophsc)The colour of cyanobacteria is due to presence of chlorophylld)Cyanobacteria help in enriching oxygen levels in the atmosphereCorrect answer is option 'B'. Can you explain this answer?
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Which among the following is incorrect about Cyanobacteria?a)The word cyano means greenish-blue because of which cyanobacteria is also called as blue-green algaeb)Cyanobacteria are chemosynthetic autotrophsc)The colour of cyanobacteria is due to presence of chlorophylld)Cyanobacteria help in enriching oxygen levels in the atmosphereCorrect answer is option 'B'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Which among the following is incorrect about Cyanobacteria?a)The word cyano means greenish-blue because of which cyanobacteria is also called as blue-green algaeb)Cyanobacteria are chemosynthetic autotrophsc)The colour of cyanobacteria is due to presence of chlorophylld)Cyanobacteria help in enriching oxygen levels in the atmosphereCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which among the following is incorrect about Cyanobacteria?a)The word cyano means greenish-blue because of which cyanobacteria is also called as blue-green algaeb)Cyanobacteria are chemosynthetic autotrophsc)The colour of cyanobacteria is due to presence of chlorophylld)Cyanobacteria help in enriching oxygen levels in the atmosphereCorrect answer is option 'B'. Can you explain this answer?.
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