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Which of the following is incorrect for blue green algae? (a) Cells are covered by peptidoglycan cell wall and mucilage sheath (b) Ribosomes are 70S type (c) Cells posses naked DNA (d) Many membrane bound cell organelles are present?
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Which of the following is incorrect for blue green algae? (a) Cells ar...
Cyanobacteria ( blue green algae) is a prokaryote which lack membrane bound organelles and option d is incorrect
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Which of the following is incorrect for blue green algae? (a) Cells ar...
Incorrect statement for blue green algae:
- Many membrane-bound cell organelles are present
Explanation:
Blue-green algae, also known as cyanobacteria, are prokaryotic organisms that lack membrane-bound organelles typically found in eukaryotic cells. They do not have structures such as mitochondria, endoplasmic reticulum, or Golgi apparatus. Instead, their cellular structure is more simple compared to eukaryotic cells.
- Cells are covered by peptidoglycan cell wall and mucilage sheath: Blue-green algae have a cell wall made of peptidoglycan, which is a characteristic feature of bacteria. They also possess a mucilage sheath that surrounds their cells, providing protection and aiding in buoyancy.
- Ribosomes are 70S type: Blue-green algae have ribosomes that are 70S in size, similar to other prokaryotic organisms. These ribosomes are involved in protein synthesis within the cell.
- Cells possess naked DNA: Blue-green algae have a single circular chromosome that contains their genetic material. This DNA is not enclosed within a nucleus, making it "naked" in the cell cytoplasm.
In summary, although blue-green algae have a unique cell wall composition and possess naked DNA, they do not have many membrane-bound organelles as seen in eukaryotic cells. This distinguishes them as prokaryotic organisms.
- Many membrane-bound cell organelles are present
Explanation:
Blue-green algae, also known as cyanobacteria, are prokaryotic organisms that lack membrane-bound organelles typically found in eukaryotic cells. They do not have structures such as mitochondria, endoplasmic reticulum, or Golgi apparatus. Instead, their cellular structure is more simple compared to eukaryotic cells.
- Cells are covered by peptidoglycan cell wall and mucilage sheath: Blue-green algae have a cell wall made of peptidoglycan, which is a characteristic feature of bacteria. They also possess a mucilage sheath that surrounds their cells, providing protection and aiding in buoyancy.
- Ribosomes are 70S type: Blue-green algae have ribosomes that are 70S in size, similar to other prokaryotic organisms. These ribosomes are involved in protein synthesis within the cell.
- Cells possess naked DNA: Blue-green algae have a single circular chromosome that contains their genetic material. This DNA is not enclosed within a nucleus, making it "naked" in the cell cytoplasm.
In summary, although blue-green algae have a unique cell wall composition and possess naked DNA, they do not have many membrane-bound organelles as seen in eukaryotic cells. This distinguishes them as prokaryotic organisms.
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Which of the following is incorrect for blue green algae? (a) Cells are covered by peptidoglycan cell wall and mucilage sheath (b) Ribosomes are 70S type (c) Cells posses naked DNA (d) Many membrane bound cell organelles are present?
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Which of the following is incorrect for blue green algae? (a) Cells are covered by peptidoglycan cell wall and mucilage sheath (b) Ribosomes are 70S type (c) Cells posses naked DNA (d) Many membrane bound cell organelles are present? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following is incorrect for blue green algae? (a) Cells are covered by peptidoglycan cell wall and mucilage sheath (b) Ribosomes are 70S type (c) Cells posses naked DNA (d) Many membrane bound cell organelles are present? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is incorrect for blue green algae? (a) Cells are covered by peptidoglycan cell wall and mucilage sheath (b) Ribosomes are 70S type (c) Cells posses naked DNA (d) Many membrane bound cell organelles are present?.
Which of the following is incorrect for blue green algae? (a) Cells are covered by peptidoglycan cell wall and mucilage sheath (b) Ribosomes are 70S type (c) Cells posses naked DNA (d) Many membrane bound cell organelles are present? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following is incorrect for blue green algae? (a) Cells are covered by peptidoglycan cell wall and mucilage sheath (b) Ribosomes are 70S type (c) Cells posses naked DNA (d) Many membrane bound cell organelles are present? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is incorrect for blue green algae? (a) Cells are covered by peptidoglycan cell wall and mucilage sheath (b) Ribosomes are 70S type (c) Cells posses naked DNA (d) Many membrane bound cell organelles are present?.
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