1.  1. How would Redi have benefitted if he would have known about the cell theory?  2. Which scientist(s) would have been most interested in the study of a rare vine that grows on the trees in Louisiana?  3. Why does each organelle have such unique structures from one another? 3/25 Daily Catalyst Pg. 39 Organelles

2.  Quiz #9 on Friday  Cell Theory  Scientists of the cell theory  Organelles  Test Corrections due Monday  Report card extra credit 3/25 Class Business Pg. 39 Organelles

3.  What do you get when you cross a snowman with a vampire?  Frostbite. Joke

4.  Daily Catalyst  Class Business  Organelle notes  Plant vs. animal cell  Exit Ticket #9  Homework: study organelles 3/25 Agenda Pg. 39 Organelles

5.  Bridge presentation

6.  Identify and describe structural and functional differences among organelles. 3/25 Daily Objective Pg. 39 Organelles

7.  The cell membrane gives plant and animal cells shape AND controls what comes in or out of the cell  Key Point #1:  “The bouncer  The cell membrane is selectively permeable.  What does this mean?! Cell Membrane

8.  Key Point #2: Selectively/semi Permeable  Only certain molecules are allowed to enter and exit the cell  How is the cell membrane so selective? Cell Membrane

9.  Question: What happens when I shake the water bottle?  Hypothesis:  Why does this happen? Class Demo

10.  Key Point #3:  Membranes have a bilayer (two layers)  Protection in and out side of the cell Cell membrane

11.  Key Point #4:  Membranes are made of phospholipids, a type of fat  (With a marker, draw and label the phospholipid) Cell Membrane HEAD Hydrophilic: <3 water TAILS Hydrophobic: Hates water

12.  How is the membrane beneficial to the cell?  The membrane regulates what will enter and leave the cell. Turn and Talk

13.  The nucleus is the command center of the cell  Key Point #5:  “Command center”  Surrounded by the nuclear membrane  Houses the DNA and RNA  Purpose of nuclear membrane?  To protect the nucleus and control what comes in or out of the nucleus  Structure?  Phospholipids too! Nucleus

14.  Key Point #6:  “The jello”  Composed of mainly water and salts  Important for transport (next week) Cytoplasm

15. Ribosomes, endoplasmic reticulum, and Golgi apparatus KP#7: Protein creation: Ribosomes  Endoplasmic Reticulum  Golgi Apparatus MEMBRANES that allow proteins to pass in and out

16. Power plants Chloroplasts  Inner and outer membranes Mitochondria  Inner and outer membranes Key point #8: folded membranes to increase surface area = efficiency! Plants Plants and Animals

17.  Sum of the total area  Key Point #9: A greater surface area allows for organelles to be more efficient Surface Area???

18. What do plants and animal cells have in common? PlantsAnimals Both

19.  Directions: Using your notes, correctly color the plant and animal cells. You may want to label the organelles as a review for Friday’s quiz.  Noise: 1 (with partner)  Time: 15 minutes Plants vs. animals

20.  Directions: I will display information about plant or animal cells. You will move to the side of the room with the correct answer. Animals are in the front. Plants are in the back. Both, plants and animals is in the center of the class.  Walk and keep talking down Cell Review

21.  Contains a cell wall  PLANTS Cell Review

22.  Contains Ribosomes  BOTH Cell Review

23.  Contains Lysosomes  BOTH Cell Review

24.  Eukaryotic  BOTH Cell Review

25.  Contains a Mitochondria  BOTH Cell Review

26.  Contains a Chloroplast  PLANTS Cell Review

27.  Contains a nucleus  BOTH Cell Review

28.  The 4 scientists involved with the cell theory  The cell theory  Major organelles discussed today Partner Review

29. Name: ______ Period: 1 Date: 3/25 Score: ___/4 Exit Ticket #8  1. How did Redi’s experiment prove that only cells come from preexisting cells from the cell theory?  2. What is the nickname for the ribosomes?  3. What was Hooke observing when he coined the term “cells”?  4. True or false, plants cells contain a cell wall like an animal cell.  5. What is the purpose of the cytoplasm?  6. If a plant cell wall loses all of its water, what organelle is not functioning properly?  7. What is the purpose of membrane bound organelles?  8. Draw and label a phospholipid.