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Cell Structure Review. And Microscopes. All organisms are made of cells The cell carries out the basic functions of life All new cells arise from preexisting cells . What are the 3 parts to the cell theory???. Matthias Schleiden (Plant Cells) Theodore Schwann (Animal Cells)
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Cell Structure Review And Microscopes
All organisms are made of cells • The cell carries out the basic functions of life • All new cells arise from preexisting cells What are the 3 parts to the cell theory???
Matthias Schleiden (Plant Cells) • Theodore Schwann (Animal Cells) • Rudolph Virchow (Cells come from pre-existing cells) Which scientists contributed to the Cell Theory?
This scientist observed cork cells… • Robert Hooke Follow up, he saw “boxes” under the microscope, which he termed… CELLS!
Unicellular • No Nucleus • SIMPLE • Carries out Life Functions • Examples: Archaeabacteria/Eubactera Prokaryotes
Cell Wall • Cell Membrane • Ribosome • DNA LABEL IT!
Cell Wall • Cell Membrane • Ribosome • DNA Cell Membrane Cell Wall Ribosomes LABEL IT! DNA
Multi/unicellular • NUCLEUS IS PRESENT • Has membrane bound organelles (VERY COMPLEX) • Carries out Life Functions • Examples: Protists, Plants, Fungi, Animals Eukaryotes Hint – Remember YOUkaryotic
Plant or Animal? ANIMAL
plant Plant or Animal?
Specialized structures that perform important functions within a eukaryotic cell. Organelle!
Holds nearly all of the cell’s DNA, which has the coded directions for making proteins and other important molecules. • Can be thought of as the “control center” of the cell. • Surrounded by an envelope with many holes that allow materials to move into and out of the nucleus. NUCLEUS
A small area within the nucleus where the ribosomes are SYNTHESIZED • Condensed section… NUCLEOLUS
“Storage facility” of the cell. Large membrane sacs that can hold materials such as water (especially in plant cells), salts, proteins and sugars. • Smaller pouches that store and transport materials throughout the cell. Vacuoles & Vesicles
“Clean-up crew” of the cell. (Trashcan) • Small organelle filled with enzymes that break down lipids, sugars and proteins into smaller molecules. Lysosomes
Made up of many protein filaments running through the cytoplasm. • Gives the cell its shape, internal organization and helps organelles move throughout the cell Cytoskeleton
Small structures that help to organize and coordinate cell division • Animals ONLY Centrioles
Jello of the cell! • The fluid portion of the cell outside the nucleus. • All of the organelles are suspended within this! CYTOPLASM
“Factory workers” of the cell. • Made up of RNA. • Responsible for creating proteins based on the instructions provided by DNA • Smaller in Pro/Larger in Euk Ribosomes
“Assembly line” of the cell. • Organelle where lipid parts of the cell membrane are put together. • Rough and Smooth Endoplasmic Reticulum
Of the rough and smooth ER this is the site of detoxification of drugs! • Specifically Makes lipids SMOOTH ER
What does the ROUGH ER do?? Assist with Protein Synthesis & Transport
“Packaging center” of the cell. • Modifies, sorts and packages proteins from the ER. • Makes packages for storage in the cell or for release outside the cell. • PANCAKES OF THE CELL (YUM!) GOLGI APPARATUS
Plant Cells ONLY • “Solar power plant” • Takes energy from sunlight and changes it into chemical energy the plant can use FOLLOW UP – pigment found here?!?!? CHLOROPLAST Chlorophyll
POWER HOUSE OF THE CELL (ATP) • Converts chemical energy from food into energy the cell can more easily use MITOCHONDRIA
Supports, shapes, protects the cell • Plants, prokaryotes, some fungi CELL WALL
A strong, flexible barrier that controls what materials enter and leave the cell. • All cells have this CELL MEMBRANE
Hollow tubes composed of proteins which make up various structures in different types of cells. • Can be synthesized or broken down as needed. 1. Cytoskeleton 2. Flagella 3. Cilia 4. Centrioles Follow up – WHAT ARE THE 4 TYPES WE DISCUSSED??!? Microtubules
Tiny hairs • Aid in movement of protists • Move materials across the body • Surfaces in humans • Cilia line our RESPIRATORY tract • Help clear out debris with aid of mucus • Act as propellers and allow an organism to move • Long hair-like structure • Sperm Cells • Euglena Cilia vs. Flagella