Bellwork 10-10-2013 1. Compare and contrast mitochondria and chloroplasts. 2. You discover a new cell with a cell wall of a weird material called peptidoglycan which is part protein and part carbohydrate. The cell has no nucleus. The only organelles it has are ribosomes, cytoplasm, cell membrane. What type of cell is it? 3. Please describe the function of the cell wall and explain which types of cells it can be found in. 4. Please describe the lysosome and explain which types of cells it can be found in. Mahalo Lysosome UstreamPlantWalls
Cell Analogy The purpose of this project is to compare the cell parts with some familiar theme which reflects the functions of each cell part. For example: A USA cell analogy would have Washington, D.C., as the nucleus because it directs activities of the USA, just as the nucleus directs cell activities the borders of the country as the cell membrane because it limits the coming and going of people/products into and out of the US
Cell Functions correctly Identified 18 Quality Point Value Value Received Title 5 Key 10 Cell Functions correctly Identified 18 Mitochondria Ribosomes Nucleus Endoplasmic Reticulum Golgi Apparatus Protein Cell Membrane Lysosomes Nucleolus Neatness Color Appropriate size 7 Bonus: Turned in early or above & beyond +10 TOTAL
Naked Egg Lab Day 2 You are now going to have the chance to place your egg in one of the solutions listed on next page. 1. Collect all equipment 2. Make observations of your egg and answer the following questions: Why do you think the eggs were upside down in the vinegar on Monday? What happened to the Shell? The inner membrane of the egg is like what? (reference the cell)
Procedure Pour vinegar into the sink Gently rinse egg (turn on faucet before you place your egg under it.) Mass cup and egg together and record Calculate the mass of egg record in journal Fill the cup a quarter of the way with the solution (water, molasses, or kayro syrup) Write a hypothesis about what you think the egg will look like tomorrow Draw a picture of what your cup and egg looks like
Naked egg lab in Journal Answer following Questions: 1. Why do you think the eggs were upside down in the vinegar on Monday? 2. What happened to the Shell? 3. The inner membrane of the egg is like what? (reference the cell) Mass of Cup and egg ____________ Mass of egg (calculated)___________ Hypothesis (what will your egg look like Monday) Draw a Diagram of your Egg in the cup
Exit Ticket Please describe the centrioles and explain which type of cells they can be found in. 2. Describe the cytoskeleton. 3. Create an analogy: the ribosome is like???? YouTube Mahalo Cytoskeleton