{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Sept 11-08 - Eukaryotes, Protists, & Diversity Lecture

Sept 11-08 - Eukaryotes, Protists, & Diversity...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Josh Bovard Biology 111 – Thursday, September 11 th , 2008 Professor Graham Bell E UKARYOTES , P ROTISTS , & D IVERSITY Eukaryotes : ~1-2 billion years old Almost all eukaryotes contain mitochondria and/or chlorophyll Mitochondria probably evolved from endosymbiosis Because eukaryotes have a cytoskeleton and the ability to change shape, they are able to develop motility inside and outside of the cell Can also perform phagocytosis Bacteria cannot take up this way of life because of their cell wall to eat other organisms, the bacteria must go into the cell and work outward; they are unable to engulf and digest Endosymbiosis is a process where one cell ‘swallows’ another cell (specifically prokaryote) and ends up living together instead of digesting it (form partnership) this is the process that created mitochondria and chloroplasts evidence is shown in the double-cell membrane around mitochondria genes in mitochondria that match bacterial genes target sequence DNA of nuclear genes targeted for the chloroplast match a protein on the membrane of bacteria reproduce by binary fission, not by creation from nuclear proteins with the mitochondria, eukaryotes would die Protists A eukaryote, but not an animal, plant or fungi Bigger than bacteria but still very small, making the diversity very poorly understood Most protists are probably living in the sea, barely larger than bacteria
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern