7 responses

  1. Elliander Eldridge
    January 5, 2016

    Overall a good article, however, you say “They do not have flagella and hence lacks mobility.” but I have personally observed complex movement of Spirulina – a cyanobacteria – under the microscope. I’m not disputing that they do not have flagella, but I do dispute that they lack mobility.

    I have taken video of this movement.

    I also observed that Spirulina is sensitive to photo-toxicity and so moves around other Spirulina so not to get too much light. In a few of my experiments a culture died because there were not enough cells to protect each other from the light. This is just one example of mobility, but also is an example of an ability to detect and respond to light.

    Reply

  2. Harry
    January 29, 2016

    Hi Elliander Eldridge. You are probably observing Brownian motion, which is fairly common when you see specimens under a light microscope.

    Reply

  3. MOUNESH
    May 29, 2016

    IN THE FIRST PARAGRAPH YOU TOLD BLUE GREEN ALGAE PERFORMS PHOTOSYNTHESIS BUT IN THE SUMMARY IT IS SAID THAT THEY CAN NOT.

    Reply

    • Isaac
      May 24, 2018

      I think he meant they can not do it the way Green Algae does. But photosynthesis does take place in them.

      Reply

  4. Alex
    February 11, 2018

    In structure and habitat, you said cyanobacteria were multicellular and that algae were small and unicellular then the opposite at the bottom( which was the right one). This is a really big mistake, and green alage can range from a multicellular organism to a unicellular organism ( examples are Chlamydomonas and Volvox ). Brown algae are the only kind of algae species that can be only multicellular.

    Reply

  5. Geetha
    July 31, 2018

    Cyanobacteria is prokaryotic and cannot be a multicellular form. It might be wrongly typed.

    Reply

  6. nancy gilbert
    August 16, 2019

    “photosynthesis” has always, i thought, meant energy transformation from light, usually w help of chlorophyll, , to create organic molecule. The article describes cyanobacteria as not using light waves, but using h2o as source of electron…. Then , calls this “photosynthesis”. I question that, or am missing something.

    Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top
mobile desktop