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17 Cards in this Set
- Front
- Back
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What are the 2 which which cells can be classified?
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Either prokaryotic or eukaryotic
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What cell classification's name means "true nucleus?"
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Eukaryotic
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What is the difference between a prokaryote and a eukaryote?
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Pro have no membrane bound nucleus and only 2 types of organelles in the cytoplasm whereas the eukaryote has many different types of organelles. A eukaryote possibly derived from a prokaryote.
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What is the plasma membrane, and which type of cell has one?
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a selectively permeable phospholipid bilayer, both euk and prok have one
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Why is the phospholipid bilayer said to be selectively permeable?
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It allows certain molecules, but not others, to enter the cell
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what part of the plasma membrane plays important roles in allowing substances to enter the cell?
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proteins present in the plasma membrane
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What is the semifluid medium that contains water and various types of molecules suspended or dissolved in the medium?
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Cytoplasm
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What is the cytoplasm?
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A semifluid medium that contains water and various types of molecules suspended or dissolved in the medium.
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What accounts for the semifluid nature of the cytoplasm?
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The presence of proteins
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What does the cytoplasm contain that are defined as small structures that perform specific functions?
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Organelles.
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What are the small structures that perform specific funcitons in the cytoplasm?
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organelles
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What is the most important organelle with eukaryotic cell?
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nucleus
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what is the membrane-enclosed structure where DNA is found?
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nucleus
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What is a nucleus?
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a membrane-enclosed structure where DNA is found
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what is the purpose of the membrane that surrounds many organelles?
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Allows compartmentalization of the cell, keeps various cellular activities separated from one another
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What keeps various cellular activities separated from one another in the internal structure of a eukaryotic cell?
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membrane
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How is the nucleus of a prokaryotic cell different from that of a eukaryotic cell?
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the DNA of a prokaryotic cell is NOT surrounded by a membrane
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