Mircobiology

"A field of biology that studies organisms that are too small to be seen with the unaided eye."All life on earth can be classified into three groups called domains. Archaea, Bacteria, and Eukarya. These groups can be further classified into kingdoms.Although Viruses are not cells and are not considered micro-organisms, they are instead called particles or biological agents.

Bacteria

Bacteria is one of the three groups (domains) that make up microbiology.It can be further classified into its own kingdom which is simply called Bacteria.

Gram Positive

Cynobacteria

Chlamydia

Spirochetes

Proteobacteria

Archaea

Archaea is one of the three groups (domains) that make up microbiology.It can be further classified into its own kingdom which is simply called Archaea.

Halophiles

Methogens

Thermophiles

Eukarya

Eukarya is one of the three groups (domains) that make up microbiology.It can be further classified into its own kingdom, called Eukarya. The kingdom is made up of four more groups which are plants, animals, fungi, and Protista.

Eukaryotic Cell

Eukaryotic cells do have a nucleus, as well as ribsosomes, a cell membrane and chromosomal DNA. Many have a cell wall, plasmid DNA, pili and flagellum.They are single celled organisms.

Plants

Animals

Fungi

Moulds

Yeasts

Protista

Prokaryotic Cell

Prokaryotic cells do not have a nucleus, but they do have ribsosomes, a cell membrane and chromosomal DNA. Many have a cell wall, plasmid DNA, pili and flagellum.They are single celled organisms.

Cocci

Circular Shaped

Bacilli

Rod Shaped

Spirilli

Spiral Shaped

Asexual Reproduction

Conjunction

Protist

Plant-like Protist

Alga

Dinoflagellates

Diatoms

Euglenoids

Green algae

Animal-like protist

Protozoa

Ciliate

Rhizopod

Flagellate

Sporozoan

Binary Fisson

Mitosis

Sexual Reproduction

Chlamydomonas

Budding

Spore Formation

Sporangia

Produces Spores

Viruses

Viruses are not considered cells, and they cannot multiply without a host cell.They are often called biological agents or particles.

Capsid

Possible Extra Outer Layer

Centeral Core

Genetic Material

RNA or DNA

Virus Multiplication

Six Step Process

1. Adsorbtion

2. Penetration

3. Uncoating

4. Synthesis

5. Assembly

6. Release

Naked Virus

Eveloped Virus

Infection

Developing of Infection

1. Finding portal of entry

2. Attaching Firmly

3. Surviving Host Defences

4. Causing Damage (disease)

5. Exiting Host

Antibioics

Treats Bacterial Infection

"Good" Bacteria

Not all bacteria are harmful but instead keep us healthy.

Skin Bacteria

Digestive tract bacteria

Communicable Diseases

Infections transmitted from one person to another

Direct Transmisson

Indirect Transmisson

Defences of the Immune System

Physical & Chemical Barriers

Resident micro-organisms

Inflammation

Immune cells and proteins

Fever

Parasites

Diseases in humans and other animals

Giardiasis

Disease in humans caused by a protozoan

Invloves formation of cysts

In cyst form, protozoan is protected and can be spread in air and water

Molaria

Spread by Mosquitos

Anti-Fungal Agents

Used to treat fungal infections

Virus caused disease

Caused by a virus infecting cells

Some viruses only infect plants

Some viruses only infect humans

The Flu

Caused by Influenza Virus

Chickenpox

The Common Cold

AIDS

Some viruses only infect bacteria

called Phages