Chapter 3: Cell Structure and Function - Los Angeles Mission College
Chapter 3: Cell Structure and Function
Characteristics of Living Organisms
All living organisms are made up of cells They share the following four processes:
? Growth: Increase in size ? Reproduction: Increase in number ? Responsiveness: React to environment ? Metabolism: Chemical reactions to provide
energy and structures needed to grow, reproduce, and respond to environment
Distinguishing Features of Prokaryotic Cells: 1. DNA is:
Not enclosed within a nuclear membrane. A single circular chromosome. Not associated with histone proteins.
2. Lack membrane-enclosed organelles like mitochondria, chloroplasts, Golgi, etc.
3. Cell walls usually contain peptidoglycan, a complex polysaccharide.
4. Divide by binary fission.
Distinguishing Features of Eukaryotic Cells:
1. DNA is:
Enclosed within a nuclear membrane. Several linear chromosomes. Associated with histones and other proteins.
2. Have membrane-enclosed organelles like mitochondria, chloroplasts, Golgi, endoplasmic reticulum, etc.
3. Divide by mitosis.
The Prokaryotic Cell: Size, Shape, and Arrangement of Bacterial Cells
Cell Size: Dimensions of most bacterial cells:
Diameter: 0.2 to 2.0 m.
Human red blood cell is about 7.5-10 m in diameter.
Length: 2 to 8 m.
Some cyanobacteria are up to 60 m long.
Bacterial cells have large surface to volume ratios. Therefore all parts of the cell:
Are close to the surface. Can be quickly reached by nutrients.
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- chapter 3 cell structure and function los angeles mission college
- section 7 2 eukaryotic cell structure hanover area
- cell structure and function
- 7 cellular structure and function cleveland metropolitan school district
- cell structure and function section 3 eukaryotic cell structure
- chapter 2 cell structure and function
- chapter 5 cell structure and function wou
- cell structure and function scarsdale public schools
- cell structure function houston independent school district
- cell study guide answers john paul ii catholic school
Related searches
- cell structure and function worksheet answers
- cell structure and function worksheet
- cell structure and function pdf
- cell structure and function notes
- chapter 3 cell structure and function answers
- cell structure and function test
- cell structure and function chapter test a
- chapter 3 cellular structure and function key
- chapter 7 cell structure and function test
- cell structure and function answer key
- cell structure and function answers
- cell structure and function worksheet key