Lesson 2 - Cell Structure and Function

Introduction
 

Getting Started

"Cells, the fundamental building blocks of organisms, are so tiny they weren't discovered until the development of the microscope. Today, we know that all tissues from the cork of a tree to the nervous tissue of humans are composed of cells. Electron microscopy and biochemical analysis of the last century led to the discovery that plant and animal cells contain a variety of organelles, each specializedto perform a particular function."


Focus on Learning
 
Use the course competencies listed below to focus your learning and use the lesson objectives to sharpen that focus.
 
Competencies By the end of the lesson , you should be able to:

  1. Describe prokaryotic and eukaryotic cell structure and function.
 
Objectives

To master the competencies, you should seek to understand how:

  1. All organisms are composed of cells which arise from preexisting cells.
  2. Cell-surface to volume relationships effect cell function.
  3. Prokaryotic cells lack membrane bound organelles.
  4. Eukaryotic cells have a membrane bound nucleus that contains chromatin that condenses into chromosomes.
  5. Eukaryotic cells have mitochondria and an enmdomembrane system.
  6. The plasma membrane contains lipids and proteins which function to regulate the passage of molecules and ions.
  7. Some molecules, including water, diffuse across the plasma membrane from areas of higher concentration to areas of lower concentration.
  8. Carrier proteins assist the transport of some molecules and ions across the plasma membrane.


Reading Assignments
 
Reading Assignment Reading is a very important component of an internet course. Read the assigned pages from your textbook before proceeding to the Activities, Study Help, and Assessment Sections.
 
Textbook Read the Assignment in Mader Concepts of Biology Textbook:
Cell Structure and Function: Chapter 4
Membrane Structure and Function: Chapter 5


Activities
 
Complete the Animation Activities. Feel free to open your book and notes as you work on them. The information in these activities is very helpful when completing the Animation Quiz that follows.
 
Animations
Complete the Animation Activities by Clicking the Links Below:
Animation Activity 1 - Diffusion
Animation Activity 2 - Facilitated Diffusion
Animation Activity 3 - Osmosis
Animation Activity 4 - Na-K Pump
 
Complete the Virtual Lab Activity. Feel free to open your books and notes as you work on it. Complete the activity by reading the instructions, performing the lab exercise, downloading the post lab quiz and report and filling it out. Be sure to complete and print out the data table embedded in each lab exercise. The information in this lab activity is very helpful when completing the Virtual Lab Quiz and Worksheet that follow.
 
Virtual Lab
Complete the Virtual Lab Activity by Clicking the Link Below:
Virtual Lab Activity: Amazing Cells


Study Help

 
It's time to review and practice what you have learned from your reading and instruction activities. Slide presentations, Chapter Outlines, Flashcards, and Student Learning Outcomes are provided to help you study. Feel free to open your book and notes as you use them.
 
Slide Presentation
Log-in to BlackBoard, navigate to the Textbook Reading Folder, click into the Reading Review Slide Presentation Folder, and click the Slide Presentation Link:
Slide Presentation - Chapter 4, 5 Mader Web Presentation
 
Practice Quiz
Log-in to BlackBoard, navigate to the Textbook Reading Folder, and click the Reading Practice Quiz Link:
Reading Practice Quiz - Chapter 4, 5


Assessing Your Learning

 
It's time to assess what you have learned from your reading and instruction activities. The following reading, animation, virtual lab, and essay quizzes are graded assignments. Feel free to open your book and notes as you work on them. Be sure to submit your work as you complete it. Good luck!
 
Reading Quiz
Log-in to BlackBoard, navigate to the Textbook Reading Folder, and click the Reading Quiz Link:
Reading Quiz - Chapter 4, 5
 
Animation Quiz
Log-in to BlackBoard, navigate to the Animations Folder, and click the Animation Quiz Link:
Animation Quiz - 2
 
Virtual Lab Quiz
Log-in to BlackBoard, navigate to the Virtual Lab Folder, and click on Virtual Lab Quiz Links:
Virtual Lab Quiz and Worksheet - 2
 
Essay Quiz
Log-in to BlackBoard, navigate to the Essay Quiz Folder, and click on the Essay Link:
Essay Quiz - 2



Related Web Sites

 
Here is a website that I like . Click the icon to pursue this topic on the internet:

Have You Met The Objectives For This Lesson?