main organelles Flashcards
Endosymbiotic theory
One cell engulfs another and doesn’t digest it
Where do eukaryotes come from?
Endosymbiotic theory
Endo symbiotic theory evidence
Mitochondria and chloroplast
1 ribosomes look like bacteria
2 double membrane
3 DNA
4 reproduce independently
Plant cells that animal cells don’t have
Plasmodesmata (cell junction)
Chloroplast
Central vacuole
Cell wall
Animal cells that plant cells don’t have
Lysosomes
Centrioles
Gap junctions
How are prokaryotes and eukaryotes different?
Nucleus
What are characteristics of all cells
DNA/RNA
Metabolism
Reproduce
Cell membrane
Why don’t ribosomes violate the no membrane bound organelles in prokaryote?
Idk
What four organelles are in all cells?
Ribosomes
Cytoplasm
Cell membrane
DNA
structures that join adjacent cells together
desmosomes
Plasmodesmata
Found only in plant cells Look like small channels Contact points between adjacent cells Allow the passage of small molecules Facilitate cell-to-cell communication
Gap Junctions
Contact points between adjacent cells Look like small channels Allow the passage of small molecules between adjacent cells Facilitate cell-to-cell communication Found only in animal cells Analogous to plasmodesmata
Tight Junctions
Found only in the cells of vertebrate animals
Protein complexes form a structure so tight, that molecules cannot pass
Forms an impenetrable barrier
in the brain
