eukaryotes and prokaryotes
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14 Terms
What is the primary difference in nucleus presence between prokaryotic and eukaryotic cells?
Prokaryotic cells lack a well-defined nucleus, while eukaryotic cells have a present nucleus.
Where is DNA located in prokaryotic cells compared to eukaryotic cells?
In prokaryotic cells, DNA is submerged in the cytoplasm; in eukaryotic cells, DNA is present in the nucleus.
Portoplasm
Living substance of cell ( Nucleoplasm + Cytoplasm )
Protoplast
Nucleoplasm + Cytoplasm + Plasma membrane
What is the type of DNA found in prokaryotic cells versus eukaryotic cells?
Prokaryotic cells have circular DNA, whereas eukaryotic cells have linear DNA.
Do prokaryotic cells have membrane-bounded organelles?
No, prokaryotic cells do not have membrane-bounded organelles, while eukaryotic cells do.
What are the sizes of ribosomes found in prokaryotic and eukaryotic cells?
Prokaryotic cells contain small 70S ribosomes, while eukaryotic cells contain larger 80S ribosomes.
Is there a cytoskeleton in prokaryotic cells?
No, prokaryotic cells lack a cytoskeleton, whereas eukaryotic cells have a well-developed cytoskeleton.
What materials are cell walls made of in prokaryotic and eukaryotic cells?
Prokaryotic cell walls are made of peptidoglycan, while eukaryotic cell walls are made of cellulose or chitin.
Do prokaryotic cells contain sterols in their cell membranes?
Prokaryotic cells do not contain sterols, while eukaryotic cells do.
What is a distinguishing feature of cell division in prokaryotic compared to eukaryotic cells?
Prokaryotic cells divide by binary fission, while eukaryotic cells divide by mitosis or meiosis.
Are histones present in prokaryotic cells?
No, histones are absent in prokaryotic cells, but they are present in eukaryotic cells.
What structural differences exist in flagella between prokaryotic and eukaryotic cells?
Prokaryotic flagella are made of flagellin, while eukaryotic flagella are composed of tubulin (microtubules).
Give examples of prokaryotic and eukaryotic cells.
Examples of prokaryotic cells include bacterial cells and blue-green algae, while eukaryotic cells include plant and animal cells, fungi, and protists.