1. Biology 11-30-15 1st entry task for Chapter 7 – The cell
Learning objective:
How homeostasis maintains an internal stable environment
Entry task:
Go to page 214 in your book. Read about homeostasis, what do unicellular organisms do to maintain homeostasis?

2. Today’s plan Checking chapter 2 test results Studying homeostasis
Comparing Prokaryotes and eukaryotes

4. Homeostasis (homeo_=same _stasis=standing still)
Unicellular organisms as well as cells in multicellular organisms must maintain homeostasis, or that is to say, relatively constant physical or chemical conditions.

5. To maintain homeostasis
Unicellular organisms
Grow
Respond to environment
reproduce
Multicellular organisms
Have specialized cells that communicate with each other

6. Homeostasis Maintaining a constant internal environment
How does your body do this?
It uses a process called FEEDBACK
2 types of feedback are
Negative – works to maintain a baseline level
ex. Your every day stuff like maintaining temperature
Positive – works to push way passed a baseline level
ex. Rarer events like child birth

7. Examples of Homeostasis in humans
Thermoregulation
Glucose regulation

8. Biology 12-1-15 2nd entry task for Chapter 7 – The cell
Learning objective:
Main organelles and their function
Compare and contrast eukaryotic and prokaryotic cells
Entry task:
What are organelles? Do you remember some of the organelles found in cells? Write them down

9. Today’s plan Comparing Prokaryotes and eukaryotes
Prokaryotic and eukaryotic Cells POGIL

10. On the white board, work with your group
Compare and Contrast
On the white board, work with your group
to fill out this Venn diagram (page 194)
Eukaryotes
Prokaryotes

11. Compare and Contrast Prokaryotes Eukaryotes Nucleus
No nucleus
Smaller
Nucleus
Endoplasmic reticulum
Golgi apparatus
Lysosomes
Vacuoles
Mitochondria
Cytoskeleton
Cell membrane
Ribosomes
Cytoplasm

12. Eukaryotic vs. prokaryotic cells
Lacks a nucleus
Lacks organelles
1-10 micrometers
Appeared earlier in the fossil record
Contains nucleus
Many organelles present
micrometers
Appeared later in the fossil record

13. Two Basic types Prokaryote Eukaryote Cell membrane cytoplasm
nucleus
Eukaryote
Cell organelles

14. Biology 12-2-15 3rdEntry task for Chapter 7 – The cell
Learning objective:
Main organelles and their function
Difference between Animal cell and plant cell
Entry task:
What is the main characteristic that differentiates a prokaryote cell from a eukaryote cell?
What is the organelle in plant cells that animal cells do not have?

15. Today’s plan Finish Prokaryotic and eukaryotic Cells POGIL
Main cell organelles and their function

16. Main cell parts and functions

17. Cytoplasm: holds organelles - transport medium

18. Nucleus: Control center – contains the DNA (genetic material)

19. Ribosomes: make proteins

20. Ribosome

21. RER: modify and transport proteins

22. SER: Production of lipids (fats)

23. What is the difference between the rough ER and the smooth ER?

24. Golgi apparatus: Process and package proteins and lipids

25. Chloroplast: Where photosynthesis occurs – Converts sun energy into chemical energy (glucose)

26. Mitochondria: converts chemic energy stored in foods into compounds that the cell can use

27. Lysosome: Breaks down organelles that are not longer usefull

28. Biology 12-3-15 4th Entry task for Chapter 7 – The cell
Learning objective:
How substances move across the cell membrane
Entry task:
The cell membrane is referred as being selectively permeable, what do you think that means?

29. Today’s plan Main cell organelles and their function
Cell membrane structure and function
Diffusion POGIL

30. Cell Membrane
Composed of proteins and a type of lipid called phospholipid
The structure that makes the plasma membrane is called the phospholipid bilayer

31. Phospholipid molecule of Plasma Membrane

32. Plasma Membrane Structure

33. Biology 12-4-15 5th Entry task for Chapter 7 – The cell
Learning objective:
How substances move across the cell membrane
Entry task:
Why is the cell membrane important to the cell?

34. Today’s plan Finish Diffusion POGIL, and go over questions Cell Quiz
Study questions

35. Diffusion
The net movement of particles of a substance from where they are more concentrated to where they are less concentrated

36. Diffusion
The random movement of molecules from a high concentration to a low concentration
If system is left alone the molecules will eventually spread themselves equally every where – the molecules do not stop moving through

38. What happens to a red blood cell when it is placed in water with different concentrations of solute?

39. Results of water movement on cells – Osmotic Pressure

40. Biology 12-7-15 6th Entry task for Chapter 7 – The cell
Please get a book!
Learning objective:
How substances move across the cell membrane
Entry task:
Explain what
Is happening
in this
diagram

41. Today’s plan
Different types of transport across the cell membrane jigsaw activity
Cell transport quiz

42. Types of transport across the cell membrane
You will be assigned an specific type of across the cell membrane transport
Study your assigned transport for 7 minutes (page )
You will move to an expert group next, where you will discuss how to prepare a presentation to explain your assigned transport (FILLOUT THE CORRESPONDING INFORMATION ON THE HANDOUT)
You can search for animations online or draw a diagram on the whiteboards provided
After 15 minutes, you will move back to your original groups where all experts will present their transport type to entire group. AS YOU LISTEN TO THE PRESENTATIONS, FILLOUT THE HANDOUT PROVIDED BY YOUR TEACHER

43. A diagram that explains the type of transport
On your handout you will get the following information for each of the different cell transports presented and for the one you are an expert on:
A diagram that explains the type of transport
Any special characteristics of your type of transport -What makes it different from the other types
The overall movement of particles that takes place
Whether or not energy is required and WHY
Pages

44. EXIT TICKET
In a half piece of paper, write your name date and period and answer the following question:
What is the difference between passive and active transport? Write an example of each

45. Biology 12-8-15 7th Entry task for Chapter 7 – The cell
Please get a book!
Learning objective:
Levels of organization in biology
Entry task:
Explain the main difference between active and passive transport. In terms of particle movement and energy required

46. Today’s plan Finish Different types of transport across the cell
Sections 7.3 and 7.4 questions

47. Cell Specialization
In multicellular organisms there is a division of labor among the specialized cells

48. Levels of Organization
cell
organ system
tissue
organ
organism

49. After you have finished the graphic organizers, work on the 7
After you have finished the graphic organizers, work on the 7.3 assessment questions (1 a, b, c, and 2 a, b, c. Page 213). write these in your notebook/journal.
Do questions 2-3 from Analyzing Data section (page 216), after reading section 7.4 (pages )

50. Biology 12-9-15 8th Entry task for Chapter 7 – The cell
Please get a book!
Learning objective:
Levels of organization in biology
Entry task:
Explain how thermoregulation is an example of homeostasis and a negative feedback

51. Today’s plan
Dialysis tubbing as a model of a cell membrane

52. Examples of Homeostasis in humans
Thermoregulation
Glucose regulation

54. Biology 12-10-15 9th Entry task for Chapter 7 – The cell
Learning objective:
Check your knowledge for chapter 7
Entry task:
Place in order from simpler to more complex
Tissue organ cell organism

55. Today’s plan Chapter 7 test
Get results and finish ‘diffusion lab questions