Identify bacterial shapes, recognize the metabolic diversity of bacteria, and distinguish Archaebacteria, Eubacteria, and Mycoplasma.
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Intro to bacteria and their four morphological shapes.
Bacteria are the sole members of Kingdom Monera. They are by far the most abundant micro-organisms on our planet.
To put their numbers into perspective, hundreds of bacteria are present in just a single handful of soil. They occur almost everywhere, constantly interacting with their environment.
Illustration of the 4 bacterial shapes.
Bacteria are classified into four main categories based on their shape: Cocci (spherical), Bacilli (rod-shaped), Spirilla (spiral), and Vibrio (comma-shaped).
MCQ testing the latin names of bacterial shapes.
A microbiologist observing a water sample notes several bacteria that appear distinctly comma-shaped. These bacteria belong to which of the following categories?
Detailed breakdown of Archaebacteria, Eubacteria, and Cyanobacteria.
Bacteria are the sole members of Kingdom Monera. Despite having very simple structures, they show the most extensive metabolic diversity of any living group.
They are categorized into four main groups based on their shape:
Note: Bacteria reproduce mainly by fission, though they can produce spores under unfavorable conditions.
Diagram of Nostoc showing heterocysts and mucilaginous sheath.
A filamentous blue-green algae (Nostoc) showing specialized heterocyst cells for nitrogen fixation and a protective mucilaginous sheath.
Highlighting Mycoplasma's unique lack of a cell wall.
Flashcards for new Monera terms.