1 / 6

Euglena

Euglena. Euglena. Euglena are unicellular organisms. All euglena have chloroplasts and can make their own food by photosynthesis. However, Euglena can also absorb food from their environment ; Euglena usually live in quiet ponds or puddles.

zenia
Download Presentation

Euglena

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Euglena

  2. Euglena • Euglena are unicellularorganisms. All euglena have chloroplasts and can make their own food by photosynthesis. However, Euglena can also absorb food from their environment; Euglena usually live in quiet ponds or puddles. • Euglena move by a flagellum, which is a long whip-like structure that acts like a little motor. The flagellum is located on the front end, and twirls in such a way as to pull the cell through the water. It is attached at an inward pocket called the reservoir.

  3. The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the euglena trap sunlight that is used for photosynthesis, and can be seen as several rod like structures throughout the cell. Euglena also have an eyespot at the anterior end that detects light, it can be seen near the reservoir. This helps the euglena find bright areas to gather sunlight to make their food. Euglena can also gain nutrients by absorbing them across their cell membrane, hence they become heterotrophic when light is not available, and they cannot photosynthesize.

  4. Amoeba • Amoebas, like all protists, are single-celled organisms. Cells are the building blocks for all life forms. "Single-celled" means that amoebas have only one cell for their entire body. A human body has more cells than you can count. • Amoebas eatalgae, bacteria, other protozoans, and tiny particles of dead plant or animal matter.They spend most of their time attached to the bottom or to plants. Sometimes they float freely in the water.

  5. The most important part of an amoeba might be the pseudopod (pronounce it "sudopod"). The psuedopod is used to help the amoeba move, and also to eat. It is a part of the amoeba's body that it can stretch out and pull itself with. Or, to eat, the amoeba stretches out the pseudopod, surrounds a piece of food, and pulls it into the rest of the amoeba's body. Amoebas reproduce (make more amoebas) by a process called binary fission. This means that one amoeba can split in half and make two identical new amoebas. AMOEBA

More Related