16 Questions
What type of cells reproduce by fissiparity?
Eubacteria
Which of the following statements is true about prokaryotic cells?
Their DNA is free in the cytoplasm.
What is the defining feature of eukaryotic cells?
Presence of a nucleus delimited by a nuclear envelope
Which of the following is not a characteristic of prokaryotic cells?
Presence of mitochondria
In prokaryotic cells, what does the absence of mitosis and meiosis mean for reproduction?
They reproduce through binary fission
Which type of cells have their DNA free in the cytoplasm?
Prokaryotic cells
What is a characteristic feature of plant cells that distinguishes them from animal cells?
Large vacuole that occupies most of the cell volume
Which component is common to both eukaryotic and prokaryotic cells?
Ribosomes
What is the main role of the bacterial wall in prokaryotic cells?
Determine the shape and ensure protection
Which staining technique revealed the existence of two types of bacteria based on their wall composition?
Gram staining
What is the molecular model of the plasma membrane?
Fluid structure with mobile proteins
What differentiates eukaryotic cells from prokaryotic cells in terms of cell division?
Cell division by mitosis and meiosis
What is a common feature of both prokaryotic and eukaryotic cells' plasma membrane?
Analogous molecular structure
What is the main role of the periplasmic space in prokaryotic cells?
Separates the plasma membrane from the bacterial wall
What distinguishes Gram-positive bacteria from Gram-negative bacteria based on their wall composition?
Thin layer of peptidoglycans in their wall
What is a defining characteristic of plant cells compared to animal cells?
Lack of a large central vacuole
Test your knowledge about the definition and types of cells. Learn about the basic structural and functional unit of all living beings, and the differences between prokaryotic and eukaryotic cells.
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