Photosynthesis -. Part I: The Sun and Light. Not all of the light from the Sun makes it to the surface of the Earth. Even the light that does make it here is reflected and spread out. The little light that does make it here is enough for the plants of the world to survive and go through the process of photosynthesis. Light is actually energy, electromagnetic energy to be exact. When that energy gets to a green plant, all sorts of reactions can take place to store energy in the form of sugar molecules.
For your GCSE Science exams, you need to be able to compare the differences between different types of cells.1  Education. 2  Standard YouTube License.or your GCSE Science exams, you need to be able to compare the differences between different types of cells. 1  Education.
Multipotent stem cells are partially differentiated, so that they form a limited number of tissue types. Multipotent cells produce only cells of a closely related family of cells (e.g. Hematopoietic stem cells differentiate into red blood cells, white blood cells, platelets, etc.).ifferentiation of HSCs to lineage specific primitive progenitor cells like Myeloid stem cells (IL-3 and GMCSF) or Lymphoid stem cells (IL-3), permit proliferation of the committed progenitor cells into other categories of major marrow cells. The various progenitor cells are identified by the type of colony they form.