Plant Cells - PowerPoint by 5Wyc9c19

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									      By
Ashley Anderson
                           Table of Contents
• The Cell Theory
• Types of cells
• Prokaryotic Cells
• Eukaryotic Cells
• Cross section of a plant cell
• Cell wall
• Cell membrane
• Vacuole
• Nucleus
• Nucleolus
• Chloroplast
• Mitochondrion
• Golgi Body
• Ribosome
• Smooth ER
• Rough ER
• Centrosome
• Amyloplast
• Cytoplasm
• People who made early contributions to cells
                      The Cell Theory




1. Every living organism is made up of one or more cells.
2. The cell is the basic unit of structure or function.
3. All cells arise from pre-existing cells.
                       The Cell Theory




Why is the cell theory called a theory and not a fact?
                     Types of Cells
•Prokaryotic Cells
•Eukaryotic Cells
                      Prokaryotic Cells
- Very simple cells
- They contain only a membrane (sometimes a cell wall),
cytoplasm and a strand of DNA
- Bacteria are prokaryotes
-The word "prokaryote" means “before the nucleus”
                      Eukaryotic Cells

-Eukaryotic cells are more advanced cells.
-Composed of a cell membrane, cytoplasm, nucleus, and
organelles
-These cells are found in plants, animals, and protests (small
unicellular "animalcules").
- Eukaryotic means “true nucleus”
Cross Section of a Plant Cell
                           Cell Wall
-Thick, rigid membrane
-Gives support and structure
-Bonds with other cell walls to form the structure of a plant
                        Cell Membrane
-Inside the cell wall
-Thin layer of protein and fat
-Semi permeable, allowing some substances to pass into the
cell and blocking others
                                    Vacuole
-Very large, takes up most of the cell
-Filled with fluid
-Helps maintain the shape of the cell.
                                 Nucleus
-Spherical body containing many organelles, including the nucleolus
- Controls many functions of the cell
- Contains DNA
                              Nucleolus
-Darker region within the nucleus
-Where ribosomal RNA is produced
                        Chloroplast
- Elongated or disk shaped
-Contains chlorophyll
-In charge of photosynthesis in which energy from sunlight is
converted into chemical energy- food for the plant.
                      Mitochondrion
-Spherical to rod shaped organelles
- Powerhouse of the cell
-Contains the enzymes necessary for turning food into
energy
                         Golgi Body
-Flattened, Layered, sac like organelle that looks like a stack
of pancakes
-Located near the nucleolus
- Sorts, modifies, and packages molecules
                          Ribosome
- Very small organelles that look like dots
- Composed of RNA
- Site of protein synthesis
   Smooth Endoplasmic Reticulum - (Smooth ER)
-Vast system of interconnected, membranes, located in the
cell's cytoplasm
-Transport materials through the cell.
- It contains enzymes and produces and digests lipids (fats)
and membrane proteins
       Rough Endoplasmic Reticulum - (Rough ER)
- Covered with ribosomes that give it a rough appearance.
- Transport materials through the cell and produces proteins in
sacks called cisternae (which are sent to the Golgi body, or
inserted into the cell membrane).
                          Centrosome
-Small body located near the nucleus - it has a dense center and
radiating tubules.
-The centrosomes is where microtubules are made.
-During cell division (mitosis), the centrosome divides and the
two parts move to opposite sides of the dividing cell.
                          Amyloplast
 - Amyloplasts are found in starchy plants like tubers and fruits.
- Stores starch for the plant
                          Cytoplasm
-The jellylike material outside the cell nucleus in which the
organelles are located
- Enclosed by the cell membrane
    People Who Made Early Contributions to Cells

Robert Hooke - The first person to see cells, he was looking at cork and noted that
                       he saw "a great many boxes. (1665)
     People Who Made Early Contributions to Cells
Anton van Leeuwenhock - Observed living cells in pond water, which he called
"animalcules" (1673)
    People Who Made Early Contributions to Cells

Theodore Schwann - zoologist who observed that the tissues of animals had cells
(1839)
     People Who Made Early Contributions to Cells


Mattias Schleiden - botanist, observed that the tissues of plants contained cells
(1845)
      People Who Made Early Contributions to Cells
Rudolf Virchow - also reported that every living thing is made of up vital units,
known as cells. He also predicted that cells come from other cells. (1850 )
                             Bibliography
Answers. 2007. Colombia University Press. 8 Mar. 2007 <http://www. answers.com
        /topic/matthias-jakob-schleiden>.

Answers. 2007. Colombia University Press. 8 Mar. 2007 < http://www.answers.com
        /topic/theodor-schwann>.

Biology Daily. 2007. Wikipedia. 16 Mar. 2007 <http://www.biologydaily.com/biology
         /Anton_van_Leeuwenhoek>.

Boyd, Christine. Catalyst Online. 2002. Carrolton University. 18 Mar. 2007 <
        http://www.carleton.ca/catalyst/2002/s3full.shtml>.

Cell Anatomy. 13 Mar. 2007
         <http://library.thinkquest.org/C004535/endoplasmic_reticulum.html>.

Cells Alive. 2006. 11 Mar 2007 <http://www.cellsalive.com/cells/centriol.htm>.
Davidson, Michael. The Cell Nucleus. Florida State University, 14 May 2005. 11 Mar.
          2007 < http://micro.magnet.fsu.edu/cells/nucleus/nucleus.html>.
                           Bibliography cont.
Edventures! Term Browser. PCS Edventures, Inc., 11 Mar. 2007
        <http://discover.edventures.com/functions/termlib.php?action=&termid=1070
        &alpha=c&searchString=>.

Iyer, Shyamala. Ask a Biologist. 2007. 21 Mar. 2007
         < http://askabiologistasu.edu/research /buildingblocks/rhooke.html>.

Kaar, Marcus. Portrait. 2007. 12 Mar. 2007 < http://portrait.kaar.at/Deutsch sprachige
        %20Teil%206/image11.html>.

Major Eukaroytic Cell Organelles: subcell parts with special catalyrtic functions. 2007. 11
        Mar. 2007 <http://fig.cox.miami.edu/~cmallery/150/cells/organelle.htm>.

McDarby, Michael. Good Stuff In; Bad Stuff Out. Transport of Materials. 2007. 11 Mar.
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Mullen, Leslie. The Three Domains of Life. 2001. 27 Mar. 2007
         <http://www.spacedaily.com/news/life-01zm.html>.
                          Biblography Cont.
Plant Cell Anatomy. 2001. 13 Mar. 2007
         <http://www.enchantedlearning.com/subjects/plants/cell/>.

Plant Cells. 11 Mar. 2007 < http://www.tqnyc.org/NYC040844/plantcells.htm>.

Proveniers, Marcel. Dutch Experiment Support Center. 2004. 14 Mar. 2007 <
        http://www.desc.med.vu.nl/NL-taxi/GraPhoBox/GPB-page1.htm>.

Ribosome. 13 Mar. 2007
         <http://www.cs.utexas.edu/users/s2s/latest/cell1/src/tutorial/ribosome.html>.
Soylent Communications. NNDB. 2007. 18 Mar. 2007 <http://www.nndb.com/peop
         le/356/000087095/>.

The Virtual Cell Web Page. 11 Mar. 2007
         <http://personal.tmlp.com/Jimr57/textbook/chapter3/cyto1c.htm>.

Thinkquest. 25 Mar. 2007 <
        http://library.thinkquest.org/04oct/01706/cytoplasm.html>.
 V D I T T S A L P O L Y M A X U
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 F T R A I P R M N Y L C C A E L
R W K V O T L B X L Q U M S R L
B W B G N A P Q S Z L T N T V U

            amyloplast             mitochondrion
          cell membrane              nucleus
             cell wall               ribosome
           centrosome                rough er
            chloroplast             smooth er
            cytoplasm                vacuole
            golgi body

								
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