Organelles Flashcards
An organism with cells that contain nuclei and other cell structures
Eukaryote
A tiny structure in the cytoplasm of a cell where proteins are made
Ribosomes
A type of organism that is made up of many cells
Multicellular
Observed the structure of a thin slice of cork using a compound microscope he built himself
Robert Hooke
Made his own lens. He observed water from a pond and found one-celled organisms. He also looked at scrapings from teeth when he could see tiny single called organisms
Anton van Leeuwenhoek
Concluded that all plants are made of cells
Matthias Schleiden
Concluded that all animals are made up of cells
Theodor Schwann
The process by which an organisms internal environment is kept stable in spite of changes in external environment
Homeostasis
Proposed that new cells are formed from existing ones
Rudolf Virchow
Protects the nucleus
Nuclear membrane
A tiny cell structure that carries out a specific function within the cell
Organelle
A type of organism that is made up of only one cell
Unicellular
Material in cells that contains DNA and carries genetic information
Chromatin
The outside boundary of the cell controls which substances can enter or leave the cell
Cell membrane
A rigid layer of nonliving material that protects the cell
Cell wall