Cells are the basic microscopic units of all organisms. There are two cell types:
Prokaryotic ( meaning ➡️ pro: before and Karyon: for kernel/nut) describes organisms which don’t have a cell nucleus or other organelles surrounded by membranes.
Eukaryotic (eu meaning true), are organisms with a cell nucleus and several other organelles surrounded by membranes.
Example prokaryotes do not contain: nuclei , Golgi apparatus, chloroplasts, mitochondria
Both may contain a cell wall (seen in eukaryotic fungi and plant cells)
Their structural components (i.e. their makeup) determine their function (what they do) . For instance, photosynthesizing cells in algae and plants have structures called chloroplasts. These contain chlorophyll, a specialized compound which facilitates the conversion of light energy to energy stored in carbohydrates.Organisms, are either unicellular (single- celled) or multicellular (many celled).
