Cells: The Basic Units of Life By: Mr. Hunter

Elodea

Microscope

Microscope

Robert Hooke Invented the microscope Invented the microscope Viewed cork under the microscope; assigned the name cells to the “little rooms” he saw Viewed cork under the microscope; assigned the name cells to the “little rooms” he saw Thought animals were not made of cells Thought animals were not made of cells

Anton van Leeuwenhoek made microscopes made microscopes Looked at pond scum Looked at pond scum Saw protists Saw protists

Cell Theory All organisms are made of one or more cells. All organisms are made of one or more cells. The cell is the basic unit of all living things. The cell is the basic unit of all living things. All cells come from existing cells. All cells come from existing cells.

Cells Surface area to volume ratio Surface area to volume ratio Cell Part DrawingDescription Membrane Organelle Nucleus DNA

Kinds of cells Compare/contrast each of the following. Prokaryotes Prokaryotes Eukaryotes Eukaryotes Archaebacteria Archaebacteria Eubacteria Eubacteria

Organelles Cell Part Drawing Description of function RibosomeERMitochondriaChloroplast Golgi Complex VacuoleLysosome

Draw and Trade Choose either a plant or animal cell. Draw it! Choose either a plant or animal cell. Draw it! DO NOT LABEL THE ORGANELLES! DO NOT LABEL THE ORGANELLES! Include each of the following organelles in your cell drawing: Include each of the following organelles in your cell drawing:

Nucleus Nucleus Cell wall or cell membrane Cell wall or cell membrane Ribosomes Ribosomes Nucleolus Nucleolus Smooth ER Smooth ER Rough ER Rough ER Cytoplasm Cytoplasm Mitochondria Mitochondria Chloroplasts Chloroplasts Golgi Complex Golgi Complex Vesicles Vesicles Lysosomes Lysosomes Vacuoles Vacuoles

Cells Cell City Analogy Cell City Analogy In a far away city called Grant City, the main export and production product is the steel widget. Everyone in the town has something to do with steel widget making and the entire town is designed to build and export widgets. The town hall has the instructions for widget making, widgets come in all shapes and sizes and any citizen of Grant can get the instructions and begin making their own widgets. Widgets are generally produced in small shops around the city, these small shops can be built by the carpenter's union (whose headquarters are in town hall). After the widget is constructed, they are placed on special carts which can deliver the widget anywhere in the city. In order for a widget to be exported, the carts take the widget to the postal office, where the widgets are packaged and labeled for export. Sometimes widgets don't turn out right, and the "rejects" are sent to the scrap yard where they are broken down for parts or destroyed altogether. The town powers the widget shops and carts from a hydraulic dam that is in the city. The entire city is enclosed by a large wooden fence, only the postal trucks (and citizens with proper passports) are allowed outside the city. After the widget is constructed, they are placed on special carts which can deliver the widget anywhere in the city. In order for a widget to be exported, the carts take the widget to the postal office, where the widgets are packaged and labeled for export. Sometimes widgets don't turn out right, and the "rejects" are sent to the scrap yard where they are broken down for parts or destroyed altogether. The town powers the widget shops and carts from a hydraulic dam that is in the city. The entire city is enclosed by a large wooden fence, only the postal trucks (and citizens with proper passports) are allowed outside the city.

A cell is like a school… Nucleus Nucleus Cell wall or cell membrane Cell wall or cell membrane Ribosomes Ribosomes Nucleolus Nucleolus Smooth ER Smooth ER Rough ER Rough ER Cytoplasm Cytoplasm Mitochondria Mitochondria Chloroplasts Chloroplasts Golgi Complex Golgi Complex Vesicles Vesicles Lysosomes Lysosomes Vacuoles Vacuoles

Cell BINGO! Nucleus Nucleus Cell wall or cell membrane Cell wall or cell membrane Ribosomes Ribosomes Nucleolus Nucleolus Smooth ER Smooth ER Rough ER Rough ER Cytoplasm Cytoplasm Mitochondria Mitochondria Chloroplasts Chloroplasts Golgi Complex Golgi Complex Vesicles Vesicles Lysosomes Lysosomes Vacuoles Vacuoles

Why be multicellular? Larger size Larger size Longer life Longer life specialization specialization

Organization 1. The smallest, living unit is a _____. 2. A _____ is a group of cells that work together to perform a specific function. 3. What are the different types of tissues? 4. An _____ is an example of tissues working together. 5. An ______ _____ is an example of organs working together to perform a specific function. 6. What are some examples of organ systems?

DrawingExampleFunction Cells Tissues Organs Systems

Structure/Function Anatomy: Structure- What is it? Anatomy: Structure- What is it? Physiology: Function- Why is it there? How does it function with other systems? Physiology: Function- Why is it there? How does it function with other systems?