Unicellular Organisms

• an ameoba is a unicellular organism that has no fixed shape
• amoeba can be found in freshwater, saltwater, wet soil and even inside animals
• inside the amoeba there is a nucleus that helps in reproduction
• amoebas eat algae, bacteria, and plant cells
• amoebas eat through the process of engulfing
• amoebas reproduce through binary fission where one cell splits into two
• the euglena is a unicellular organism
• euglena is found in freshwater
• euglenas contian a cytoplasm and neucleus which helps in reproduction
• euglenas have chloroplasts whoich make them green
• euglena eats throught the processs of photosynthesis
• euglena has an eyespot which detects light and a flagellum which helps to swim towards the light
• euglena eat other microorganisms by engulfing them
• euglena produces through binary fission
• amoebae are unicellular organism that move using pseudopodia
• Diffusion is a very important process for all living organisms, because it allows cells to get what they need. Oxygen, glucose (sugar) and amino acids are three examples of substances that diffuse into cells. Diffusion is also the process by which waste substances leave the cell such as carbon dioxide and urea.
• what are 2 functions of unicellular organisms???

  1. produce faster due to asexual nature
  2. adapt to changing environment quickly due to only having one nuclues
• all bacteria are prokaryotic
• all protists are eukaryotic
• prokaryotic means - to have no nucleus or membrane bound organelles
• Chemotaxis - the movement towards or away from chemicals
• Phototaxis - is the movement towards light
• ameobas are protists