
State whether the following statements are true or false. Bacteria and algae are prokaryotic cells.
A. True
B. False
Answer
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Hint: Eukaryotes have a true nucleus and prokaryotes do not. Prokaryotes have plasmids or circular genetic material that distinguishes them from eukaryotes.
Complete answer: Eukaryotes and prokaryotes are differentiated based on several characteristics.
1. Eukaryotes have a true nucleus consisting of a nuclear envelope, nucleolus, and nucleoplasm but prokaryotes do not have a true nucleus.
2. Eukaryotes have 80S ribosomes and prokaryotes have 70S ribosomes.
3. Eukaryotes have a linear DNA while prokaryotes contain a circular DNA.
4. Even, the DNA of prokaryotes is naked while in eukaryotes they are bound to histone proteins.
5. Eukaryotes are usually multicellular organisms and the cells are also larger in size.
6. Prokaryotic organisms are mostly single-celled and the cell is also smaller in size.
7. Bacteria belong to the group of prokaryotic organisms but algae are representative of eukaryotes.
So, the correct answer is B. False.
Note: Prokaryotes divide and reproduce by binary fission or sometimes longitudinal fission. Eukaryotic cells divide by mitosis and meiosis (for gamete cells).
Blue-green algae or cyanobacteria are considered as prokaryotes.
Complete answer: Eukaryotes and prokaryotes are differentiated based on several characteristics.
1. Eukaryotes have a true nucleus consisting of a nuclear envelope, nucleolus, and nucleoplasm but prokaryotes do not have a true nucleus.
2. Eukaryotes have 80S ribosomes and prokaryotes have 70S ribosomes.
3. Eukaryotes have a linear DNA while prokaryotes contain a circular DNA.
4. Even, the DNA of prokaryotes is naked while in eukaryotes they are bound to histone proteins.
5. Eukaryotes are usually multicellular organisms and the cells are also larger in size.
6. Prokaryotic organisms are mostly single-celled and the cell is also smaller in size.
7. Bacteria belong to the group of prokaryotic organisms but algae are representative of eukaryotes.
So, the correct answer is B. False.
Note: Prokaryotes divide and reproduce by binary fission or sometimes longitudinal fission. Eukaryotic cells divide by mitosis and meiosis (for gamete cells).
Blue-green algae or cyanobacteria are considered as prokaryotes.
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