1. Do Now-Silently & Independently 1.Which type of cell does NOT contain a nucleus? 2. Which type of cell DOES contain a nucleus? 3. What is an organelle? 4. This organelle is the control center of the cell and contains genetic material. 5. This organelle controls what enters and exits the cell Today’s topic: Endosymbiosis Theory (add it to your table of contents!)

2. Complete Do Now Silently & Independently 1.Follow the entrance procedure. 2.Have your homework in the top right corner to be check 3.Begin working on your Do Now Silently

3. Agenda Do Now & Review Binder Set Up EOC Practice Questions Endosymbiosis Theory CATCH – Endosymbiosis Article Quiz

4. Let’s Look At some DATA A2: 86% A3: 72% A4: 84% B1: 98% B3: 90%

5. Binder Set UP-BINDERS stay in the classroom! Five Tabs: 1. Notes/Articles 2. Homework 3. Test/Quizzes 4. Labs 5. Vocabulary

6. Objectives/Why does this matter? EQ: are there different types of cells and how did they originate? Objective: We will be able to identity prokaryotes and eukaryotes in order to understand the importance of cell differentiation.

7. EOC Practice (white board challenge) You and your partner will have one minute to decide the answer. Chose your answer, then write the explanation Put the cap back on the marker This is a challenge! So you don’t want anyone else seeing your answer before the time. When I say 3,2,1… white boards up, have one partner hold your whiteboard in the air with pride!

8. EOC Practice Question #1 –White Boards In a biology lab, students did an experiment to study how the mass of a piece of potato in the shape of a cube changed. They determined the mass of the cube, placed the cube in a 10% salt solution, and measured the mass of the cube again. Which piece of equipment did the students use to measure the mass of the potato cube? Explain your answer. A. Beaker B. Balance C. Test tube D. Metric ruler

9. EOC Practice Question #2 The diagram shows a drawing of a cell. Which cellular component identifies the cell shown as a eukaryotic cell? EXPLAIN your answer. a. Nucleus b. Ribosome c. Cytoplasm d. Cell membrane

10. EOC Practice Question #3 A student is assigned to determine whether a particular microbe is eukaryotic or prokaryotic. Which procedure is best suited to completing this assignment? (hint: how do we see very very small objects). Explain your answer. A. Measuring the amount of oxygen released using a sensor B. Examining the DNA sequence of the microbes C. Measuring the microbes using a micrometer D. Examining the microbes under a microscope

11. Types of Cells -Prokaryotes Eukaryotes

12. Endosymbiosis Theory Explains the origins of eukaryotic cells from prokaryotes The mitochondria (personal power plant) of eukaryotes evolved from bacteria living within their host cell

13. Support for Theory This is because mitochondria lack membrane-bound organelles but include their own DNA

14. New Expectations for Annotating YOU need AT LEAST 1 of letter (CATCH) for each paragraph If you know all the words, circle a word you find interesting.

15. Read & Annotate the Article using Catch C: circle any unknown words A: ask questions of the text (in the margins) T: talk to the text (in the margins) C: capture the main idea (box it) H: highlight/underline supporting details A random question will be checked for a grade so make sure you are working. Use complete sentences when answering the questions!

16. Quiz Time