Cell Structure and Function Cell/Developmental Biology I.

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Cell Structure and Function Cell/Developmental Biology I

Transcript of Cell Structure and Function Cell/Developmental Biology I.

Cell Structure and Function

Cell/Developmental Biology I

Group Members

• Kelly Hogan, Facilitator • Rita Graze• Matthew Kearley • Zheng-Hua Ye• Xiaoyu Zhang• Christine Sestero• Heather Tinsley

Learning Goal: Understand how organelles/cell structure relate to the overall function of the cell.

– How is cell structure and content responsible for differences between plant and animal cells or cell types in different tissues?

– What functions are not related to the organelles/cell structure?

Learning Objectives:

1. Identify the major cell organelles.2. List the major functions of the organelles.3. Predict how changes in organelle/cell structure could alter cellular

function .4. Explain how overall cellular function is dependent upon

organelles/cell structure.5. Relate cell structure to every day contexts.

Target Audience: Introductory biology course for non-majors;One 50 minute lecture.

Unit Outline• Pre-class: Students read the chapter about cells and

organelles in their textbook. 1 hour• Introduction: Review with students what activities cells must

perform and which organelles are responsible for these activities. 10 minutes

• Activity #1: Students build a model plant or animal cell. 10 minutes

• Activity #2, Cell Detective: Students build an imaginary cell suited for a specific function; students exchange cells and attempt to guess function. 15 minutes

• Mini-lecture: Give real life examples of how cell structure aids with function; clarify misconceptions revealed during activities. 10 minutes

• Summation: Leave students with a thought-provoking question to take their understanding a step further. 5 minutes

Cell Detective

• Part 1: Design a cell.• Part 2: Exchange with a neighbor and guess

the identity of your neighbor’s cell.• Part 3: Discuss with the class.

Cell Detective (Part 1 – 7 minutes)• Each group has a handout with a specific description

of an imaginary cell.• Your task is to draw a cell that best fits the

description given.• Be sure to pay particular attention to any differences

that this cell should possess when compared to the model cell that you constructed earlier.

• Begin by deciding on and drawing the outline of the cell, then fill in with the appropriate organelles.

• Be sure to label the organelles, but do not write the function of your cell on the paper.

• Feel free to use your notes and textbook.

Cell Detective (Part 2 – 5 minutes)• Exchange your cell with a neighboring group.• DO NOT GIVE YOUR DESCRIPTION TO THE OTHER

GROUP.• As a group, try to decide what the function of

your neighbor’s cell is.• Again, pay particular attention to how the cell in

front of you differs from the model cell with which you are familiar.

Cell Detective (Part 3 – 3 minutes)• Share with the class what you think the function

of your neighbor’s cell is and why.

Post-Activity Summing Up/Transition (5 min.)

• Have students ponder the question:

“Do differences in organelles alone account for the different functions of cells?”

Summative AssessmentSample Exam Questions

• Is the cell that is depicted below most likely taken from a plant or an animal? Provide 3 pieces of evidence to support your answer.

Summative AssessmentSample Exam Questions

• For the cell structures indicated by the arrows, name the structure and list the primary function?

• Cell type A and cell type B contain the same types of organelles but have vastly different functions. Speculate how this is possible.

Summative AssessmentSample Exam Questions

• Review of previous lecture (~10 slides)