{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

classification-2 - CLASSIFICATION TAXONOMY BASIC CELL TYPES...

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

View Full Document Right Arrow Icon
CLASSIFICATION - TAXONOMY BASIC CELL TYPES 1. TWO BASIC CELL TYPES (all living cells) A. Eukaryotic (“true nucleus”) - more complex B. Prokaryotic (“pre-nucleus”) - simpler, smaller 2. COMPARISON OF CHARACTERISTICS A. EUKARYOTIC CELLS 1. Possess a true “nucleus”. a. Nuclear material surrounded by a nuclear membrane. b. Nuclear material organized into paired chromosomes. c. Nuclear membrane (DNA) associated with proteins called histones - form the chromosomes. d. Nucleus contains nucleolus - sites of ribosome synthesis. 2. Internal structure more complex - contains organelles - each have a specific function. 3. Cytoplasmic streaming - continuous movement of the cytoplasm. 4. Cell membranes contain complex lipids - sterols (cholesterol). 5. Cell walls a. Occur only on plant cells, fungi b. Composed of cellulose, chitin. 6. Division occurs by mitosis, meiosis. B. PROKARYOTIC CELLS 1. No “true” nucleus - nucleoid. a. No nuclear membrane. b. No paired chromosomes.
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