Ch. 4

Card Set Information

Author:
Anonymous
ID:
75271
Filename:
Ch. 4
Updated:
2011-03-26 00:36:50
Tags:
Biology
Folders:

Description:
Biology
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user Anonymous on FreezingBlue Flashcards. What would you like to do?


  1. Compound Light Microscope
    • - 1000x magnification
    • - Capable of distinguishing points 200 nm apart
  2. Electron Microscope: Transmission and Scanning
    • - 30000x magnification
    • - Capable of distinguishing points 0.5 nm apart
    • - Better light source
    • - Scanning electron: 3-D (topographical)
    • Transmission: detailed 2-D
  3. Characteristics of Life
    • Living Organisms:
    • 1. Are organized
    • 2. Respond to stimuli
    • 3. Reproduce
    • 4. Grow and develop
    • 5. Are homeostatic: defined as the ability to (tightly) maintain control of the internal systems of the organism
    • 6. Are adapted
    • 7. Take materials and energy from the environment
  4. Cell Theory
    • 1. All living things are composed of cells.
    • 2. New cells arise from pre-existing cells.
    • 3. The cell is the smallest living thing that is capable of the characteristics of life.
    • Examples of cell types:
    • • Unicellular organisms: Bacteria, blue-green algae.
    • • Multicellular organisms: Complex organisms, animals
  5. Plant Cells
    • - Has chloroplast
    • - Has cell wall (cellulose)
    • - No centriole
    • - Cell shaped and appearance is organized and symmetrical
  6. Animal Cells
    • - No chloroplast
    • - No has cell wall
    • - Has centrioles and basal bodies
    • - Cell shaped and appearance is not organized and symmetrical
  7. Prokaryotic Cells
    • - Tend to be found in bateria and algae
    • - Tend to be unicellular
    • - No nuclear membrane
    • - Have single, circular DNA
    • - Lack most discrete organelles
    • - But carry on eukaryotic functions: DNA replication, cellular respiration, Lysosome- like enzymes to K'd organic material
  8. Eukaryotic Cells
    • - Tend to be found in animals
    • - Tend to be multi-cellular
    • - Have double-stranded DNA
    • - Contains most discrete organelles

What would you like to do?

Home > Flashcards > Print Preview