How do trees get their mass?

In your groups make a list of the things that a plant needs to survive.
Now, make a list of the things that a plant produces.






Enrichment question:  How can trees be taller than 10m?

Enzyme Videos

Concepts to understand:

Activation Energy
Catalyst
Active Site
Substrate

Enzyme Entry Task

Use this link and write a clever statement for the question

"Why doesn't the stomach suggest itself?"

Enzyme Questions - Mechanical and Chemical Digestion

What causes food to break down?

Go to the gizmo site and complete Activity B  - Mechanical and Chemical Digestion

What are the features of Mechanical Digestion?


Enrichment Questions

• Why is it important that the mouth and stomach are near the start of the digestive system?
• What is the role of Enzymes Amylase and Pepsin?
• In humans, the small intestine can be over 8 meters (26 feet) long. Why do you think this organ is so long?

Cell Specialization part II

Gallery Walk

Find 3 examples around the classroom that best embody the phrase “Structure dictates function” Your examples must include at least one plant and one animal.

• These examples can be on a sub-cellular, cellular, tissue, or organ level.
• Explain what the structure is and how the structure helps perform the function.
• Use the format…
• Cell Name
• Structure
• Function
• How the structure and the function are directly related

Write a ClEvR statement answering the question

Does structure dictate function in plant and animal cells?  Use at least three pieces of evidence you gathered from your gallery walk.  

Upload your statement here

Cell Specialization part I

Objective: Prepare a small poster explaining the function and organization of a specialized cell type
Purpose: To understand the role of cellular diversity in multicellular life.

Assigned Cell Types

• 
  
• Myocyte
• Spermatozoa
• Intestinal Epithelium cell
• Xylem Cell
• Phloem Cell
• Plant Epidermal Cell
• Neuron
• Adipocyte
• Parietal Cell
• Melanocyte
• Guard cell
• Root Hari Cell
• Osteocyte
• Oocyte

Procedure:

• You will need to research the following information about your assigned cell: 

1. What is the common name and scientific name of your cell type?
2. Is your cell type an animal or plant cell?
3. Where in the organism is your cell type found?
4. What does your cell type look like? Draw a labeled diagram and describe the structure.
5. What does your cell type do? Describe the function of your cell type.
6. What structures help this cell type perform its function?
7. What organelles are vital to this cell type? What organelles can be absent?
8. What is the average size of your cell type in µm?
9. What tissues is this cell a part of? What organ(s)? What organ system(s)?
10. What would happen to the organism if this cell type disappeared?

• Using an 11x17" sheet of paper make a display poster with an image of the cell and the information you researched.

•  Add to your poster examples (three total)  of  how structure dictates function on the

• sub-cellular level (organelles)
• cellular level
• tissue/organ level.

Cell Safari part 2 - ClEvR statement

Following the Cell Safari walk you were presented with 9 'exemplar' cell pictures and asked to write three ClEvR statements about them.  Submit your best statement on this form.

Cells lab #2 - Cell Safari

Objective: Observe and document various cells under the microscope.
Purpose:  To understand the different features of Animal , Plant and Prokaryote cells.

You will examine three separate cells:  One plant, one animal and one Prokaryote provided by the instructor.  For each one will document the following:

NAME = Name of specimen

TYPE = Plant, Animal, or PROKARYOTE
Cell Size = Size of individual cell in micrometers (indicate L or W and which cell if many sizes)

Diagram - A drawing of your field of view under the setting indicated on the chart. Be detailed. Use at LEAST THREE COLORS.

Next:  Do a ClEvR statement for one of the following experimental questions:

•Which cell types have a nuclei?
•Which cell types have a cell wall?

•Which cell types are bigger eukaryotic (plant and animal) or prokaryotic? 

Part II - Cell Safari

•Observe at least 10 quality “plant cell” drawings, what are 3 things that plant cells have in common?
•Observe at least 10 quality “animal cell” drawings, what are 3 things that animal cells have in common?
•Observe at least 10 quality “prokaryotic cell” drawings, what are 3 things that prokaryotic cells have in common?
•Many cells have specialized regions inside of them called 'organelles'. One of these major organelles is called the nucleus. The nucleus is often seen in cells under a microscope as a darker circular region inside of the cell. By looking around at other groups' slides can you determine which one of the three cell type does not have nuclei?
•Some cells have a thick, dark, organized, uniform, and clearly defined border surrounding individual cells. This is caused by an organelle called the cell wall. By looking around at other groups' slides, which two of the three cell types do you think have a cell wall?
•Look around at other groups' slides. Get size data from at least 4 groups for their 3 cell types. Find an 'average size' for each of the three cell types: plant, animal, and prokaryotic.
•Make a data table with your data for the above question
•Make a bar graph of the three different cell types' average size.
•Which of the three cell types showed the least variety from cell to cell on a single slide. In other words, which slide type (plant, animal, or prokaryotic) did all the cells on a slide generally look identical to the other cells in that slide?
•Which of the three cell types showed the most variety from cell to cell in the same slide? In which slides did all the cells look very different from the cells next to them?

•Why are the cells in these slides so different from other slides even in similar cell types? In other words, why don't all animal cells look the same? 

Part III

After viewing the exemplar samples, write a ClEvR statement for each type of cell (Plant, Animal, or PROKARYOTE)