Flashcards in Chapter 1 - Introduction Deck (7)
What is animal cell culture?
The maintenance & growth of cells from animals in an in-vitro environment
What is biotechnology?
The production of economically useful products by organisms and cells
What are the components of cells?
Cell membrane - phosopholipid bilayer seperates inside from outside
Nucleus - contains cell's DNA
Cytoplasm - Cytosol (intracellular fluid) and organelles (membranous and mambranous)
What is the ECM comprised of?
Proteoglycasn and insoluble protein fibres
Explain the different cell junctions
Gap Junctions - Protein channels (connexons) between adjacent cells; used as a method of communication by allowing chemicals and electrical signals to pass
Tight Junctions - Partial fusion of cell membranes; materials cannot pass in between the 2 cells (occluding)
Anchoring Junctions - Interactions between ECM or other cell; unlike tight junctions, materials can move between the 2 cells
What types of tissues are in humans?
Epithelial - The layer of cells covering organs & line cavities
Connective - Forms major structural component of animals
Muscle - Specialized group of cells for contraction
Nervous - Cells that transmit electrical impulses