NEW Behavior Log is filled out for 11/14/16 Copied Objective, HW into assignment list Warm-Up: Label the cell organelles in the following drawing of plant cells under a microscope:

Goals * State the Objective(s)/Standard (s)- RI 7.6; W2; Sci 3b * State the Purpose (Big Idea) - How can we explain the extinction of Mississippi life based on limitations of cell structure and function, genetics, energy/food webs, and biomes/adaptations? SWBAT Compare and contrast unicellular and multicellular life

Agenda I Do: Vocabulary & Figures We Do: 4-Corners Activity You Do: Sponges Reflection Summary/ Feedback/ Questions

Unicellular Organisms vs. Multicellular Organisms Types of Organisms Unicellular Organisms vs. Multicellular Organisms

Definition: Organism – anything that can live on its own What is an Organism? Definition: Organism – anything that can live on its own

Unicellular Organisms

Unicellular Organisms Definition: Unicellular organism – an organism made of only one cell Information: These organisms are very small and need to be seen with a microscope. Perform the same tasks as multicellular organisms They move, eat, reproduce and expel waste.

Unicellular: Common Names Microscopic Organisms Microorganisms Really small living things

Examples of Unicellular Organisms Amoeba Paramecia E. Coli Bacteria Unicellular Fungi Unicellular Yeasts

Images of Unicellular Organisms

THE AMOEBA

Have characteristics of an animal cell The Amoeba Have characteristics of an animal cell Live in fresh and salt water environments and decaying vegetation sites. Are predators – they prey on algae and bacteria Uses osmosis to get water and diffusion to get oxygen and dispose of carbon dioxide. https://www.youtube.com/watch?v=PsYpngBG394

                                                                                                                                                                                                Binary Fission (cell division) PARAMECIA

Bacteria A unicellular microorganism lacking organelles and an organized nucleus Some can cause disease.

Strongly Agree Disagree Strongly Disagree Agree Neutral Stand Up! All bacteria are bad. Strongly Agree Disagree Neutral Agree Strongly Disagree

Bacteria is actually helpful! 1. Digestion of our food! Listen Up! Bacteria is actually helpful! 1. Digestion of our food! 2. Eutrophication & Oil-eating bacteria Gulf Oil Spill 3. Do you know anyone with diabetes? Using genetic engineering, we can actually make insulin using bacterium. How is it done? Animation

What else do we do with bacteria? Yogurt Cheese Sauerkraut Pickled Ginger Wine/Beer Olives Dill Pickles Soy Sauce

Less specialized cells have less development. Stand Up! Less specialized cells have less development. Strongly Agree Disagree Neutral Agree Strongly Disagree

Less specialized cells can do fewer things. Stand Up! Less specialized cells can do fewer things. Strongly Agree Disagree Neutral Agree Strongly Disagree

Small cells are better at their jobs than large cells. Stand Up! Small cells are better at their jobs than large cells. Strongly Agree Disagree Neutral Agree Strongly Disagree

Why do you believe in your point of view? Write it out! The sorted 4-corners groups will write down informational statements about: Why do you believe in your point of view? Why it is different from the other points of view groups in the room?

Multicellular Organisms

Multicellular Organisms Definition: Multicellular organism – an organism made of two or more cells Information: These organisms are able to be seen with the naked eye. These organisms need all parts of itself to survive.

Multicellular Organisms Rely on a variety of cells to perform cellular functions. These are called “specialized cells”. Specialized cells perform duties such as digestion or movement. Example: Eyes, Muscles and Tongue. (what duties do these perform?) Just like organelles, each cell has a job to play

Examples of Multicellular Organisms Humans Cats Dogs Insects Birds Flowers Mold Trees

Images of Multicellular Organisms

Humans are the most advanced multicellular organism. Stand Up! Humans are the most advanced multicellular organism. Strongly Agree Disagree Neutral Agree Strongly Disagree

Why do you believe in your point of view? Write it out! The sorted 4-corners groups will write down informational statements about: Why do you believe in your point of view? Why it is different from the other points of view groups in the room?

1. Write 2 Test Questions (2 minutes) Example: Explain the difference between unicellular and multicellular organisms. How can bacteria be useful? Trade with a classmate See if you can answer the questions. (3 minutes)

Multicellular Question: What type of organism is a hamster? Answer: Sample Question Question: What type of organism is a hamster? Answer: Multicellular

Unicellular Question: What type of organism is bacteria? Answer: Sample Question Question: What type of organism is bacteria? Answer: Unicellular

2. Question to Consider Why do you think small cells are more efficient (better at what they do) than large cells? 2 minutes

3. Questions to Consider: 5 minutes Consider the following: A unicellular organism is a living thing that meets all of the basic needs with just one cell. A multicellular organism can require up to several trillion cells to do the same thing. a. Which type do you consider to be more advanced? Explain your reasoning. b. Are multicellular organisms better or smarter? Why do you think so?

The Sponge Dilemma– Your Choice Write three questions you would like to ask a scientist who is working on a new way to use sponges. Write three reasons scientists should continue researching ways to use what we learn about sponges. Come up with at least 1 reason why it is good sponges can re-grow in clumps but are still unicellular. Where do you think sponges fit in the evolutionary history of multicellularity? Before or after it/ Why?

What Interested Me? Why Should I Care? Don’t Forget! Write in your notes what interested you. Why Should I Care? Why should you care about what we talked about today? Don’t Forget! Family Tree Project Due Over Break Quizzes are due NO TUTORING UNTIL AFTER BREAK

GO GO FEEDBACK FRONTIER! Miss K – In my baggie (Comments on my teaching, living up to my goals, and any personal things you need to privately tell me) Your peers – Feedback to 1 or 2 people… What is something you saw him/her do that matched up with our class values? Why was it really great to see this?