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.
By Heather Scoville. Multicellular eukaryotic organisms can have many different types of cells that can perform different functions as they combine to form tissues. There are two main types of cells within the multicellular organism. These are called somatic cells and sex cells, or gametes. Somatic cells. Somatic cells are a regular type of body cell that is not involved in anyway in sexual reproduction. In humans, somatic cells are diploid, meaning they have two full sets of chromosomes in them.