6.2 - Cells Flashcards
What is the definition of a prokaryotic cell?
a cell that does not contain a nucleus or membrane bound organelles
What is the definition of a eukaryotic cell?
a cell that contains a nucleus and membrane bound organelles
What is special about plant and some bacterial cells?
they have an extra layer of protection called the cell wall
What is the cell membrane made out of?
phospholipids
What two things is a phospholipid made out of?
a head and a tail
Is the head of a phospholipid hydrophilic or hydrophobic?
hydrophilic
Is the tail of a phospholipid hydrophilic or hydrophobic?
hydrophobic
What is another name for the cell membrane?
the phospholipid bilayer
What else can the cell membrane contain?
cholesterol and proteins?
What is the purpose of proteins?
help objects pass through the cell membrane
What is the purpose of cholesterol?
helps provide extra support to the cell membrane