Cell Theory - ️️The theory that cells form the fundamental structural and functional units of all living organisms
Unicellular - ️️A single celled organism
Multicellular - ️️Made up of more than one cell.
Prokaryotic - ️️A small single cell lacking a nucleus or any other me...
IB Biology - Unit 1 - Cell Biology Cell Theory - ✔ ✔ The theory that cells form the fundamental structural and functional units of all living organisms Unicellular - ✔ ✔ A single celled organism Multicellular - ✔ ✔ Made up of more than one cell. Prokaryotic - ✔ ✔ A small single cell lacking a nucleus or any other membrane -bound organelles. Bacterial cells are an example Eukaryotic - ✔ ✔ A cell characterized by the presence of a nucleus and other membrane -bound organelles. Eukaryotes can be unicellular (protists) or multicellular (fungi, plants and animals). Microscope - ✔ ✔ An instrument with lenses and light that is used to observe objects too small to be visible with only the eyes. Magnification - ✔ ✔ Make appear larger than it is, especially with a lens or microscope. Resolution - ✔ ✔ Ability of a microscope to distinguish two objects as separate Virus - ✔ ✔ Ultramicroscopic infectious agent that replicates itself only within cell s of living hosts Differentiation - ✔ ✔ Cells develop different forms adapted to specific functions Emergent - ✔ ✔ Characteristic that appears as the complexity of life increases, once the minor parts are assembled. For example when the brain is function ing you experience thoughts and memories. Thoughts and memories are the emergent properties Stem Cell - ✔ ✔ Cells that divide and remain undifferentiated. Three types are totipotent, pluripotent, and multi -potent. Ultrastructure - ✔ ✔ The detailed struct ure of the internal components of cells as revealed by the electron microscope rather than by the light microscope. Binary Fission - ✔ ✔ A form of asexual reproduction in single -celled organisms by which one cell divides into two cells of the same size Cell Wall - ✔ ✔ A rigid structure made of cellulose that surrounds the cell membrane and provides support to the cell Plasma membrane - ✔ ✔ Phospholipid partially -permeable membrane that controls what can enter and exit the cell Ribosome - ✔ ✔ A cell orga nelle that is the site of protein synthesis. Cytoplasm - ✔ ✔ Cellular gel -like fluid material outside the nucleus and inside the plasma membrane. Contains the cell organelles Nucleoid - ✔ ✔ Area in prokaryotic cells in which DNA is concentrated, though n ot bounded by a membrane Flagella - ✔ ✔ Hairlike structures that allow some prokaryotic organisms to move
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