Cells Flashcards
Prokaryote
Simplest, most ancient-bacteria and archaea
Smaller than eukaryote
No nucleus
Cell wall
Helps maintain shape
Capsule
Enables cell to attach to surfaces in environment. Literally think of a pill capsule.
Fimbraie
Helps attach to host. Little hairs on outside.
Eukaryote
Larger than prokaryote, more complex
Membrane bound nucleus and organelles
Animal cells, plant, fungi and protists
What do prokaryotes and eukaryotes have in common
DNA, ribosomes, cytoplasm, plasma membrane
In prokaryote cells:
Plasma membrane
Outer covering separating cells interior from surrounding environment
In prokaryote cells:
Cytoplasm
Consists of jelly like cytosol , contains other cellular components.
In prokaryote cells:
DNA
Cells genetic material
In prokaryote cells:
Ribosomes
Synthesize proteins
In eukaryote cells:
Plasma membrane
Phospholipid bilayer w/ embedded proteins.
Separates the internal contents from environment.
Controls entry and exit of molecules.
In eukaryote cells:
Phospholipid
Lipid molecule with 2 fatty acid chains and a phosphate containing group
In eukaryote cells:
Cytoplasm
Entire region between plasma membrane and nuclear envelope
Semi solid consistency. 70-80% water.
In eukaryote cells:
Nucleus
Houses the cells DNA, directs the synthesis of ribosomes and proteins
In eukaryote cells:
Nuclear envelope
Double-membrane structure that has pores-controls passage of ions, molecules, and RNA