The Cell!!!! TB:pgs. 277-285

1- Seven Characteristics of Living Things Breathing Eating Moving Excreting Reproducing Growing Reacts to the environment

2-Examples Whales Ferns Breathing: O2 CO2 Eating: Krill Minerals Moving: Swimming Cellular Excreting: Urine, CO2 O2 Reproducing: Live Young Pollination Growing: From 1m+ Spores Reacts to the environment: Fear Wilt In conclusion they both meet the criteria and are therefore living

2-Examples Car Breathing: O2 Eating: Gas Moving: Rolls Excreting: CO2 Reproducing: No Growing: No Reacts to the environment: Rusts In conclusion, a car does not meet all the criteria, and therefore, is not living.

Cell 3-All living organisms are composed of cells. 4-The cell is the smallest living unit that exist.

Cell 5-Cells do not have all the same size, shape, or function.

6-There are Two Different Cell Types: Animal Cells & Plant Cells

Animal cell 7- Animal cells include: Cell membrane, cytoplasm, nucleus, vacuoles, endoplasmic reticulum, & mitochondrion.

8 –Draw the Animal Cell

9-Plant cell 5- Plant cells include: Cell membrane, cytoplasm, nucleus, vacuole, endoplasmic reticulum, mitochondrion, cell wall, chloroplast.

10- Draw the Plant Cell

How do cells work? 11- Inputs: are substances that enter the cell and are indispensable to its activities. 12-Outputs: Substances that must leave the cell=Waste.

Think of a City How does it operate? Who protects the city? Who runs the city? How does the city manage its trash? How does the city get food? How does the city get its power? How do you know when you are in the city limits?

Now think of a Cell Do the parts of the cell compare to any parts of a city? What cell parts do you remember from yesterday? How many can you relate to the parts of a city?

A cell can be compared to a city! Each part of the cell has its own function or purpose. The parts of the cell can be compared to the parts of a city based on their similar purpose.

Cell Part City Analogy Purpose A. Cell City Area with fixed boundary B. Cell Membrane City Limits Surrounds & border C. Cytoplasm Environment Inner space D. Nucleus City Hall Controls the activities E. Endoplasmic Reticulum Roads or Highways Transportation system F. Mitochondria Power Plant or solar panels or windmills Provides power G. Vacuole Storage Facility – boxes, crates, and plastic bags Stores food and waste H. Chloroplast Green grass within the city Where photosynthesis takes place I. Cell Wall Brick wall surrounding city Gives shape, structure, support, and protection

Creating your own Cell = City You are going to create your own real or imaginary city. Each part of your city will correspond to a part of the cell. Your city must have: a name a border a ruler (mayor, king, queen) make a product have a way to deliver the product power system

Cell City Analogies An analogy is a similarity between like features of two things, on which a comparison may be based. Endoplasmic Reticulum The road represents the endoplasmic reticulum because they are both transportation systems

Choose an Animal Cell City or a Plant Cell City The plant cell will have two extra parts: Cell Wall Chloroplasts You will receive an extra 2 points if you choose the plant cell.

Sketch your city in pencil on large computer paper. Label and circle each part of the city A-I for plant cell A-G for animal cell Create a legend in the corner of your city. Color your city completely and neatly

City = Cell Brick Wall = Cell Wall Gate = Cell Membrane Air = Cytoplasm City Hall = Nucleus Police Station = Nuclear Membrane

A I C D G B H E J Legend A: Far Far Away B: Brick Wall C: Environment D: Shrek’s Castle E: Puss-n-boots Security Service F: Gingerbread Man’s Cookie Factory G: Roads H: 3 Blind Mice Delivery Service I: Dragon Power Service (DPS) J: Donkey Recycling F

Final Product Your map/picture must be neat, colorful, correctly labeled, and have a legend or key. Use pencil first then color. Be creative! Have fun with it. Past examples included underwater cities prehistoric cities skate parks amusement parks

Cells Class 2

1- Exchanges Between the Cell and Its Environment Diffusion Osmosis Photosynthesis Cellular Respiration

Diffusion 2 – Diffusion is the process by which molecules spread from areas of high concentration, to areas of low concentration. 3- When the molecules are even throughout a space - it is called EQUILIBRIUM

Osmosis 4- Osmosis is the passage of water across a membrane that only allows certain substances to pass http://www.youtube.com/watch?v=DVsmtCgXtU0

Osmosis cont. 5-The solute is more concentrated on the left side to start with. This causes water molecules to move across the membrane toward the right until equilibrium is reached. 6-Selectively Permeable Membranes allow some things across the membrane. For example water and oxygen move freely across the cell's membrane, by diffusion

Photosynthesis 7-Solar energy + water + carbon dioxide  Oxygen + glucose Draw

Cellular Respiration 8- Oxygen+ glucose  Carbon dioxide+ water + energy. Draw

Microscope

Microscope