Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key


Play button


Play button




Click to flip

18 Cards in this Set

  • Front
  • Back
What is a prokaryote?
single-celled organism that lacks a nucleus
differences between the two bacteria Kingdoms
Archaebacteria has cell walls without peptidoglycan and Eubacteria does
three different shapes of bacteria
bacilli, cocci, spirilla
prefixes of bacteria shapes
strepto- and staphylo-
suffixes of bacteria shapes
–cocci, - bacilli and –spirilla
the different methods of obtaining energy for bacteria
photoautotrophic, chemoautotrophic, heterotrophic and photoheterotrophic
the different methods of releasing energy
the obligates aerobes, obligate anaerobes and facultative anaerobes
Compare and contrast the two different methods by which bacteria reproduce
Binary fission-
gram staining
consists of two dyes—one violet (the primary stain) and the other red (the counterstain).
identifying the different cell walls of Eubacteria
Gram-positive and Gram- negative
Gram- positive
Bacterial cells with a cell wall containing mainly peptidoglycan absorb only the violet dye, so they appear purple under the microscope. These bacteria are called Gram-positive.
Gram- negative
bacteria have a second, outer, layer of lipid and carbohydrate molecules. This extra layer absorbs only the red stain. These bacteria, which appear pink, are said to be Gram-negative.
different methods of movement
1. propelled by flagella (tail)
2. snake/spiral forward- “inchworm”
3. glide on slime-like material
4. don’t move at all
Relate endospores and bacteria
When growth conditions become unfavorable, many bacteria form structures called spores
when does an endospore form?
when a bacterium produces a thick internal wall that encloses its DNA and a portion of its cytoplasm; can survive a long time and really bad conditions
Anthrax spores/ anthrax bacteria
methods bacteria cause diseases for humans
Some damage the tissues of the infected organism directly by breaking them down for food. Other bacteria release toxins (poisons) that harm the body.
how do antibiotics help in treating bacterial diseases?
Antibiotics are compounds that block the growth and reproduction of bacteria.
Relate disinfectants and other sterilization techniques to controlling bacteria.
Sterilization destroys bacteria by subjecting them either to great heat or to chemical action. A disinfectant is a chemical solution that kills bacteria