In addition, another type of orange oil is extracted from a different species of orange tree. Orange oil is a popular essential oil that is used in aromatherapy to treat various health problems, so understanding the differences between the orange oils is useful to know. Bitter Orange Oil Bitter orange (Citrus aurantium var. amara) oil is extracted from the the fruit of the bitter orange tree by cold expression.
Therefore, every living cell of a plant should contain all the genes the plant has and thus has the capacity to grow back to a full plant. This is called cell totipotency . The process of specializing cellsâ functions is called cell differentiation . It is accompanied by morphogenesis, the change of the cellsâ morphology. Differentiation is done by turning on certain genes and turning off some others at a certain time.
1 Examples include embryonic stem cells and cells that are derived from the mesoderm, endoderm, and ectoderm germ layers that are formed in the beginning stages of embryonic stem cell differentiation. 2  Multipotent-the ability to differentiate into a closely related family of cells.he outer cell mass becomes part of the placenta, and the inner cell mass is the group of cells that will differentiate to become all the structures of an adult organism. This latter mass is the source of embryonic stem cells-totipotent cells (cells with total potential to develop into any cell in the body).