• Cork cells
  • Bacteria
  • Cheek cells
  • Elodea cells
  • Bacteria vs. Cheek cells
  • Elodea vs. Cheek cells
  • Cell Plant Animal

Cell Structure - basic principle

Bacterial cells Bacterial cells

Bacterial cell model Nucleoid - genetic material (DNA) that controls cellular activities Cell wall - protective layer that is made of peptidoglycan Cytoplasmic membrane - regulates chemicals going in or coming out of the cell Outer membrane - characteristic of Gram negative bacteria Fimbria - for attachment to the host or inanimate objects Ribosome - help in protein synthesis Mesosome - small invaginations of plasma membrane that have respiratory enzymes Plasmid - small, circular pieces of DNA that help bacteria survive Flagella - for movement

Cork cells Empty dead space inside dead cork cells Cell wall - remaining part of dead cork cells
Onion cells Cytoplasm - fluid inside the cell where organelles are located and chemical reactions take place Nucleus - organell that contains genetic material (DNA) for control of cellular activities Cell wall - protective layer of the cell
Elodea cells Cytoplasm - fluid inside the cell where organelles are located and chemical reactions take place Chloroplast - photosynthesis Cell wall - protective layer of the cell
Cheek cells Cytoplasm - fluid inside the cell where organelles are located and chemical reactions take place Nucleus - organell that contains genetic material (DNA) for control of cellular activities Plasma membrane - regulates chemicals going in or coming out of the cell
Prokaryotic vs. eukaryotic Plasma membrane - regulates chemicals going in or coming out of the cell Nucleus - organelle that contains genetic material (DNA) for control of cellular activities Cytoplasm - fluid inside the cell where organelles are located and chemical reactions take place Bacterium
Plant vs. animal cells Plasma membrane - regulates chemicals going in or coming out of the cell Nucleus - organelle that contains genetic material (DNA) for control of cellular activities Cytoplasm - fluid inside the cell where organelles are located and chemical reactions take place Chloroplast - photosynthesis Cell wall - protects the cell

Plant cell model Chloroplast - photosynthesis Central vacuole - storage of water and other chemicals Cell wall - protects the cell Membrane vesicle - stores and transports chemicals Mitochondrion - powerhouse of the cell for production of energy Rough endoplasmic reticulum - synthesis of secretory proteins Smooth endoplasmic reticulum - lipid synthesis, storage and detoxification Nuclear envelope with pores - regulates chemicals going in or coming out of the nucleus Nucleolus - synthesis of rRNA Golgi complex - modifies and packages proteins that are secreted out Cytoplasm - fluid inside the cell where organelles are located and chemical reactions take place Plasma membrane - regulates chemicals going in or coming out of the cell

Animal cell model Membrane vesicle - stores and transports chemicals Mitochondrion - powerhouse of the cell for production of energy Rough endoplasmic reticulum - synthesis of secretory proteins Centriole pair - regulation of cell division Lysosome - has hydrolytic enzymes Smooth endoplasmic reticulum - lipid synthesis, storage and detoxification Nuclear envelope with pores - regulates chemicals going in or coming out of the nucleus Nucleolus - synthesis of rRNA Golgi complex - modifies and packages proteins that are secreted out Cytoplasm - fluid inside the cell where organelles are located and chemical reactions take place Plasma membrane - regulates chemicals going in or coming out of the cell

In Elodea cells, organelles move around in the cytoplasm, a process called cyclosis