Cell Parts and Their Functions, Scientists, and Other Stuff
Shape support and protection. Made of cellulose.
Phospholipid bilayer. Regulates what passes in and out of the cell. Semi-permeable membrane that separates cytoplasm from environment.
Site of photosynthesis. Contain chlorophyll.
Site of cellular respiration. Powerhouse of the cell. ATP
Produce proteins. Attached to ER=proteins are exported. Free-floating=proteins are used in the cell.
Most cell activities occur here! Transports dissolved materials throughout cell.
Control center, directs all activities. Contains DNA, makes RNA.
Regulates what passes in and out of the nucleus. Semi-permeable membrane that separates nucleus from cytoplasm.
DNA and proteins. Coil to form chromosomes during reproduction.
Makes and partially assembles ribosomes.
Digestion. Recycles cell parts.
Transports proteins throughout cell. Smooth=no ribosomes. Rough=ribosomes attached.
Packages substances made in cell for export.
Support, movement, cell division. Found throughout cell.
Storage for food, water, waste. Takes up most available space in plant cells. Turgor Pressure
Movement. Found in bacteria, protists and animal cells.
"Before nucleus" – cells with NO nucleus or membrane-bound organelles (such as ER)
"True nucleus" – cells WITH a nucleus and membrane-bound organelles.
eukaryote - Cell wall, chloroplast, vacuole
eukaryote - cilia, flagella
prokaryote - genome (large ring of DNA), plasmids (small circular DNA), cell wall with or without peptidoglycan
eukaryote – cell wall with chitin
eukaryote – great diversity
Coined the term cell
Made microscopes magnification of 50-300X.
Observed first living cells while looking at blood, rainwater, teeth scrapings, etc.
First documented sighting of bacteria, called them "wee animalcules".
Anton van Leeuwenhoek
Put meat in two jars. Open jar had maggots, the covered one did not.
Refuted the theory of spontaneous generation (life can arise from non living things). No one believed him.
Boiled two flasks of meat broth. Sealed flask had no microorganisms in it, unsealed one did.
Refuted spontaneous generation, no one believed him.
Put boiled broth in two swan necked flasks. One year later, no bacterial growth. He broke the neck off the flask and there were microbes one day later. Refuted theory of spontaneous generation and was finally accepted.
All plants are composed of cells.
All animals are composed of cells.
Pathologist who studied diseases.
Cells only come from other cells.