Prokaryotic Cells Flashcards
Do both eukaryotic and prokaryotic cells contain a nucleus?
No - only eukaryotic cells
How is DNA organised in eukaryotic cells?
Linear and packaged into chromosomes in the nucleus.
How is DNA organised in prokaryotic cells?
Circular and freely floating in cytoplasm.
Do both eukaryotic and prokaryotic cells contain a cell membrane?
Yes
Do both eukaryotic and prokaryotic cells contain membrane-bound organelles?
No - prokaryotic cells do not contain membrane-bound organelles.
Are ribosomes present in both?
Yes
What type of ribosomes are found in each type of cell?
In eukaryotic cells, 80S ribosomes are found. In prokaryotic cells, 70S ribosomes are found.
In which type of cell are chloroplasts sometimes found?
Only in some eukaryotic cells.
In which type of cell are flagella sometimes found?
In some prokaryotic cells.
In which type of cell are capsules sometimes present?
In some prokaryotic cells.
In which type of cell are plasmids sometimes present?
In some prokaryotic cells.
By what process do bacteria replicate?
Binary fission
What are the 5 steps in binary fission?
- Cell replicates its DNA.
- The cytoplasmic membrane elongates, separating DNA molecules.
- Cross wall forms; membrane invaginates.
- Cross wall forms completely.
- Separate daughter cells formed.
