Cells and Tissue
Terms in this set (20)
The smallest unit, or building block, of all living things.
The control center of the cell.
A fragile, transparent barrier that contains the cell contents and separates them from the surrounding environment.
Bound the nucleus by a double membrane.
Penetrate through the fused regions of the nuclear envelope.
Sites where ribosomes are assembled.
DNA combined with protein and forms a loose network of bumpy threads.
Cellular material outside the nucleus and inside the plasma membrane.
Tiny finger like projections that greatly increase the cells surface area for absorptions so that the process occurs quicker.
The chromatin threads coil and condense to form dense, rodlike bodies.
Bind cells together into leaks proof sheets that prevent substances from passing through the extracellular space between the cells.
Anchoring junctions that prevent cells subjected to mechanical stress from being pulled apart.
Mainly to allow communication. Chemical molecules, can pass directly from one cell to another through them.
Semitransparent fluid that suspends the other elements.
Them metabolic machinery of each cell.
Chemical substances that may or may not be present, depending on the specific cell type.
Depicted as tiny threadlike or sausage shaped organelles, but in living cells they squirm, lengthen, and change shape almost continuously. They are the powerhouse of the cell.
Tiny bilobed, dark bodies made of proteins and one variety of RNA.
Endoplasmic reticulum (RER and SER)
A system of fluid filled cisterns that coil and twist through the cytoplasm.
Transports proteins made of ribosome through the cell.
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