What are the three main types of bacteria?
There are three basic bacterial shapes: Round bacteria called cocci (singular: coccus), cylindrical, capsule-shaped ones known as bacilli (singular: bacillus); and spiral bacteria, aptly called spirilla (singular: spirillum). The shapes and configurations of bacteria are often reflected in their names.
What are the main types of bacteria?
Bacteria are divided into five basic groups based on morphology (shape): coccus, bacillus, spiral, coryneform, and filamentous. When bacteria are Gram-stained, they may be further classified as Gram-positive, Gram-negative, or Gram-variable depending on the ability of their cell walls to hold a specific type of stain.
What are the 2 classifications of bacteria?
There are broadly speaking two different types of cell wall in bacteria, that classify bacteria into Gram-positive bacteria and Gram-negative bacteria.
What are 3 shapes and groups of bacteria?
Bacteria are classified into three groups based on their shape such as; Coccus: These are spherical or round in shape. Example: streptococcus group, responsible for “strep throat.” Bacillus: These appear as rod shapes. Example: Bacillus anthracis (B. anthracis), or anthrax. Spiral: These are curved or spiral shapes. Example: Leptospirosis, Lyme disease, and syphilis are caused by bacteria of this shape.
What are the four groups of microorganisms?
Microorganisms can be divided into five major groups: bacteria, protozoa, fungi, algae, and viruses. Bacteria: They are among the smallest and oldest organisms on our planet and are found in four different shapes: rod-shaped (bacilli), spherical (cocci), curved (commas), and spiral (spirilla).
What are the 3 morphological types of bacteria?
Mainly, these classification considers three fundamental forms: Cocos This type of bacteria is characterized by having a cellular envelope of spherical shape . That is, when they are observed by the microscope they are circular cells. Bacilli The main characteristic in this type of bacteria is that they have the shape of elongated rods . Helicoids
What are the 3 types of micro organisms?
1.2A Types of Microorganisms Key Points. Microorganisms are divided into seven types: bacteria, archaea, protozoa, algae, fungi, viruses, and multicellular animal parasites ( helminths ). Key Terms. Bacteria. Archaea. Fungi. Protozoa. Algae. Viruses. Multicellular Animal Parasites.
