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Parts of the Eukaryotic Cell

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					Parts of the Eukaryotic
          Cell
      Honors Biology
        Chapter 7
                     Cells
Robert Hooke viewed a piece of cork
under a microscope and noticed 1000’s of
tiny chambers and called them “cells”
Cells are the basic unit of life
Cell Theory
   All living things are made of cells
   Cells are the basic unit of structure and
    function in living things
   New cells come from existing cells
                      Cells
Cells fall into 2 broad categories, depending on
whether or not they contain a nucleus
Nucleus is a membrane enclosed structure that
holds the cells genetic material
   Prokaryotic – does not contain a nucleus. Generally
    smaller and less complicated
    ex: bacteria
   Eukaryotic – does contain a nucleus that separates
    the genetic material. Generally more complex. Some
    unicellular organisms
    ex: plants, animals, fungi, protists
             Organelles
ORGANELLES - Cell structures that act as
specialized organs

CYTOSKELETON – network of protein
filaments that help the cell maintain shape
and provide support

CYTOPLASM – portion of the cell outside
the nucleus
NUCLEAR MEMBRANE/ENVELOPE – Controls
what goes in and out of the nucleus

NUCLEUS – Membrane enclosed structure that
contains the cells genetic material and instructions
for making proteins

NUCLEOLUS – Assembly of ribosome's

CHROMATIN – DNA bound to protein

CHROMOSOME – Condensed chromatin for cell
division
RIBOSOMES – Place of protein synthesis

ENDOPLASMIC RETICULUM (ER)–
Transports materials through the inside of
the cell
   ROUGH ER – Contains ribosome’s
   SMOOTH ER – Lacks ribosome’s


CELL MEMBRANE – Controls what goes in
and out of the cell
GOLGI APPARATUS – Modify, sort, and
package proteins and other materials from
the ER

LYSOSOME – Sacs that contain digestive
enzymes needed for breaking down
macromolecules (animals only?)

VACUOLES – Place to store materials like
water, food and minerals
        Larger in Plants….WHY????
MITOCHONDRIA – Sites of cellular respiration.
Generate ATP (energy)
         The powerhouse of the cell

MICROTUBULUES – Network of proteins that
provide support, aid in locomotion and make
centrioles and flagellum

CENTRIOLES – Aid in cell division. Found in
animal cells only

FLAGELLUM – specialized for locomotion. Found
in animal cells only
CELL WALL – protects and supports plant
cells

CHLOROPLAST – converts sunlight into
energy to make food for plants. Contains
a green pigment called chlorophyll
            SUM IT UP…
 PLANT CELLS ONLY – cell wall,
 chloroplasts, and a large central vacuole
Some animal cells contain a small vacuole
 to pump water out of the cell

 ANIMAL CELLS ONLY – Centrioles and
 flagellum

				
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