Cell Organelles and the Cell Theory Flashcards
What is the purpose of cytoplasm?
-keeps organelles in place
- fluid “jelly-like”
What is the purpose of the nucleus?
-control center
What is the purpose of the cell membrane?
-semi-permeable
-controls what enters/exits the cell
What is the purpose of the mitochondria?
-provides energy for the cell to use
-“powerhouse”
What is the purpose of the vacuole?
-stores:
-food
-water
-waste
-smaller in animals
What structures differentiate in plant v. animal cells?
-cell wall (only plants)
-chloroplast (only plants)
-vacuole (bigger in plants)
What is the purpose of the cell wall?
-provides support
What is the purpose of the chloroplast?
-use energy from sunlight to make glucose
What is the purpose of the large vacuole?
-storage area
-turgor pressure inside PUSHES against cell wall
What did Jensen discover?
created the first compound microscope
What did Hooke discover?
first to see cells in cork and invented the term “cell”
What did Leeuwenhoek discover?
first to see animal cells under a microscope
What did Brown discover?
first to see a cell’s nucleus
What did Schleiden and Schwann discover?
cells form the basic unit of life in all plants and animals
What did Virchow discover?
cells come from previously existing cells