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Transcript
Name: Is It Made of Cells? Imagine you could examine the objects and materials listed below with a powerful microscope. This powerful microscope will allow you to see evidence of cell structure. Put an X next to the objects or materials that are made up, or were once made up, of cells. flowers sand skin worms proteins bacteria rocks leaf milk seeds bone water lungs molecules cell membrane hamburger sugar mushrooms DNA chlorophyll chromosomes calcium paramecium saliva apples blood atoms Explain your thinking. Describe the “rule” or reason you used to decide whether something is or was once made up of cells. Names: Make-a-Cell Now that you know all of the parts that make up a general cell, it’s time to look at specialized cells. Using what you know about what each part of the cell is responsible for, design a cell that is well-adapted to perform the task written on the back of this page. • Think carefully about all the steps the cell will have to make in order to perform the task. • Think about the parts of a general cell that will be most important to your cell. Draw your cell, labeling all the major parts. Do not draw below this line. *** If you get a sliver, this cell helps break down the wood now lodged in your finger *** Describe how the features you gave your cell help it perform this task. Names: Make-a-Cell Now that you know all of the parts that make up a general cell, it’s time to look at specialized cells. Using what you know about what each part of the cell is responsible for, design a cell that is well-adapted to perform the task written on the back of this page. • Think carefully about all the steps the cell will have to make in order to perform the task. • Think about the parts of a general cell that will be most important to your cell. Draw your cell, labeling all the major parts. Do not draw below this line. *** This cell is in the heart muscle of an Olympic sprinter *** Describe how the features you gave your cell help it perform this task. Names: Make-a-Cell Now that you know all of the parts that make up a general cell, it’s time to look at specialized cells. Using what you know about what each part of the cell is responsible for, design a cell that is well-adapted to perform the task written on the back of this page. • Think carefully about all the steps the cell will have to make in order to perform the task. • Think about the parts of a general cell that will be most important to your cell. Draw your cell, labeling all the major parts. Do not draw below this line. *** This cell is from a potato tuber *** Describe how the features you gave your cell help it perform this task. Names: Make-a-Cell Now that you know all of the parts that make up a general cell, it’s time to look at specialized cells. Using what you know about what each part of the cell is responsible for, design a cell that is well-adapted to perform the task written on the back of this page. • Think carefully about all the steps the cell will have to make in order to perform the task. • Think about the parts of a general cell that will be most important to your cell. Draw your cell, labeling all the major parts. Do not draw below this line. *** This cell is on the bottom of a nudibranch, a marine slug that moves around on a carpet of mucous *** Describe how the features you gave your cell help it perform this task. Names: Make-a-Cell Now that you know all of the parts that make up a general cell, it’s time to look at specialized cells. Using what you know about what each part of the cell is responsible for, design a cell that is well-adapted to perform the task written on the back of this page. • Think carefully about all the steps the cell will have to make in order to perform the task. • Think about the parts of a general cell that will be most important to your cell. Draw your cell, labeling all the major parts. Do not draw below this line. *** This cell is from an organism that only has one cell, and feeds by surrounding and digesting small bits of food *** Describe how the features you gave your cell help it perform this task. Names: Make-a-Cell Now that you know all of the parts that make up a general cell, it’s time to look at specialized cells. Using what you know about what each part of the cell is responsible for, design a cell that is well-adapted to perform the task written on the back of this page. • Think carefully about all the steps the cell will have to make in order to perform the task. • Think about the parts of a general cell that will be most important to your cell. Draw your cell, labeling all the major parts. Do not draw below this line. *** This cell is part of the trunk of a redwood tree *** Describe how the features you gave your cell help it perform this task. Design cells to perform the following tasks. Think carefully about all the steps the cell will have to make in order to perform the task. Then think about the parts of a general cell that will be most important to your cell. 1. 2. 3. 4. You get a sliver. This cell helps get rid of the wood now lodged in your finger. This cell is in the heart muscle of an Olympic sprinter. This cell is from a potato tuber. This cell is on the bottom of a nudibranch, a marine slug that moves around on a carpet of mucous. 5. This cell is from an organism that only has one cell, and feeds by surrounding and digesting small bits of food. 6. This cell is part of the trunk of a redwood tree. Cell parts Cell Structure 1. Cell membrane – separates cell from the outside 2. Cell wall – protection and support in plants, algae, some others 3. Nucleus – holds chromosomes a. Nuclear envelope – separates nucleus from cytoplasm b. Nucleolus – where ribosomes are made c. Chromosomes – DNA molecules 4. Cytoplasm – everything between the nucleus and the cell membrane Organelles 1. Mitochondria – convert stored chemical energy into compounds more readily usable 2. Chloroplasts – site of photosynthesis 3. Ribosomes – assemble proteins 4. Smooth ER – storage of chemicals and enzymes 5. Rough ER – modification of newly made proteins 6. Golgi apparatus – modifies, collects, packages and distributes proteins 7. Lysosomes – break down foreign materials 8. Vacuoles – storage of water, starches, pigments, etc. 9. Cytoskeleton – support and movement a. Microtubules – support cell shape, move organelles around b. Microfilaments – cytoplasmic streaming