BIOL 190 Lecture Notes - Lecture 3: Exocytosis, Prokaryote, Signal Transduction
8 Dec 2015
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Bio190 study guide for unit 3 exam: stem cells and cellular differentiation. The plasma membrane (it encloses the cells and controls what leaves and enters the cell), cytoplasm (supports internal structure), genetic center: dna (controls structure/function and heredity), ribosome (site of protein synthesis). The characteristics of stem cells are unspecialized/undifferentiated(immature cells), able to specialize/ differentiate into different levels of plasticity, able to self- renew(asymmetric cell division) Embryonic cells: from a surplus of embryos from in vitro fertilization, pluripotent. Somatic cells: from fetus- adult tissue such as umbilical cord and bone marrow, multipotent to unipotent. Cellular differentiation: the process where immature (undifferentiated) cells develop: cell boundary structure and function structure/functions to become specialized cells. A specific differentiated cell in the body is red blood cells. Rbcs transport oxygen to body cells and deliver carbon dioxide to the lungs. Red blood cells contains many of these protein called hemoglobin which is the functional category of transport.
