{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Biology 1201-Chapter 6-Tour of The Cell

Biology 1201-Chapter 6-Tour of The Cell -...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Biology 1201   (MWF 11:30-12:30 PM) Chapter 6  A Tour of The Cell Prokaryotes vs. Eukaryotes 6.2.2 “An Overview of The Cell” * Prokaryotic versus Eukaryotic cells. PROKARYOTES EUKARYOTES Single circular chromosome  2 or more linear chromosomes No nucleus or nuclear envelope Nucleus with a nuclear envelope Genetic material in a “nucleoid region” Genetic material within the nucleus No organelles Contains membrane-bound organelles Nucleoid —The area of the prokaryotic cytoplasm where the chromatin (chromosomes  or genetic material) is localized.  The nucleoid is a region of the cell.  Cytoplasm —The contents of the cell other than the nucleus—cytosol, organelles,  vesicles, and the cytoskeleton.  Cytosol —The aqueous part of the cytoplasm, and the amino acids, sugars, proteins,  and nucleotides contained. The cytosol is a solution. Organelle —A specialized structure (subnit) inside the cell that carries out a specific  life process. 
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
Plant and Animal Cell Overview: The Basics – 6.2.3 Plasma membrane —The outermost membrane of the cell that protects it from its  environment.  The plasma membrane is composed of double layer lipid molecules. * Compart mental  Organization The Nuclear Envelope: The Initial Tour – 6.2.5 Nuclear Function: Who’s in Charge? – 6.2.6 *The  nucleus  contains the cell’s genetic library. Nucleus —A   dense   organelle   present   in   most   eukaryotic   cells,   typically   a  single  rounded structure bounded by a double membrane, containing the genetic material (DNA  and RNA). The nucleus is responsible for growth and reproduction. Nuclear envelope —Double membrane (lipid bilayer) forming the surface boundary of  a eukaryotic nucleus.  Chromatin —The complex combination of DNA, RNA, and proteins that makes us  chromosomes.  Chromosomes —A threadlike strand of DNA and protein that carries the genes in a  linear order. Nucleolus — A round or oval body in the nucleus of a eukaryotic cell; consists of DNA  and RNA and produces ribosomal RNA.
Image of page 2
*Many cell organelles are connected through the  endomembrane system.
Image of page 3

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

View Full Document Right Arrow Icon
Image of page 4
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