Text Readings in Lewis	Review questions	"To think about"
Chapter 4 Pages 59-75 & 79-82 Chapter 5, Pages 83-102 & 106-108	Pages 81-82 Questions 1-3, 5, & 10 Page 107 , Questions 1,2, & 5	Page 82 questions 4 & 5

Cell Biology Links

Objectives:
After studying this material you should be able to:

1. Explain how a single cell meets the basic criteria that differentiate living organisms from nonliving objects or chemical reactions.

2. Draw sketches of common prokaryotic, plant, and animal cells.

3. Label the membrane systems, organelles, and other components of each type of cell in your drawings.

4. Describe the basic structure of the membranes in the cells you have drawn and describe the roles of these membranes in determining the organization and functions of cells and their organelles.

5. Describe the function of each membrane system, organelle, and other cell component in the performance of the life functions of each of the three basic types of cells.
6. Describe the role of each cell organelle and membrane system involved in the production and secretion of milk from a mammary gland cell. (Read the text section "Making Milk starting on pg 69 of Lewis' text. Understand the relationships among the organelles illustrated in figures 4.11, pg. 70 and 4.12, pg. 71)

Prokaryotic Cells

• pro = before, karyon = kernal (what nuclei looked like to those who first saw them through a microscope)

• cells without organized nuclei bounded by a nuclear membrane

• eubacteria, cyanobacteria, and archaea

• cell wall

• plasma membrane

• no membrane bound organelles

• nucleoid

Eukaryotic Cells

• eu = true, karyon = kernel (nucleus)

• cells with organized nuclei bounded by a nuclear membrane

• plant, animal, fungi, and protists (single celled organisms)

• cell wall in some

• plasma membrane in all

• membrane bound nucleus

• membrane bound organelles
  • endoplasmic reticulum (ER)
  • ribosomes
  • golgi bodies or Golgi look alike?
  • lysosomes
  • mitochondria
  • chloroplasts

• red and white blood cells

• Virtual Cell by Matej Lexa, Plant Biology, UIUC