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Bacteria

Bacteria

 
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Author: Nathan Lampson
Objective:
This lesson will provide the characteristics of the domain Bacteria.
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Show your understanding of this concept by correctly answering 3 questions.

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Tutorial

When a person becomes sick due to Strep Throat, it is a result of a bacterial organism called Streptococcus. Bacteria that cause illness or disease are known as pathogens.

Bacteria aren't always harmful, the bacteria found in the human digestive tract help to digest food and keep us healthy. In return, the digestive bacteria get energy from the food we eat. This relationship between humans and bacteria where both organisms benefit is known as a mutualistic relationship.

Bacteria must possess certain characteristics in order to be considered bacteria.

Peptidoglycan

The cell walls surrounding bacteria is made of a substance called peptidoglycan. Peptidoglycan is a material containing sugar and amino acids.

Unicellular

Bacterial organisms are unicellular and are made of just a single cell.

Prokaryote

Bacterial cells do not contain organelles or membrane bound nuclei.

Autotroph or Heterotroph

Organisms that are classified as bacteria can either produce their own nutrients or get nutrients by consuming other organisms.

Questions and Answers

  • Answer 1
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    Peola Bolden 11 months ago

    Why would you always put up a quiz after the reading? Is it to test our knowledge about the things that we read?

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    •  
      Kayla Wells answered 11 months ago

      Of course she is.

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Academic Reviews
SOPHIA has reviewed the tutorial and found it academically sound.
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