Biology Summer Project

Human and microorganisms

Table of content Types of microorganisms

Useful of microorganism

Immunization

Types of microorganisms

Bacteria

Fungi

Viruses

Protozoa

Bacteria

• Both Autotrophic and Heterotrophic nutrition• Reproduction by binary fission• Dysentery (痢疾 ), Cholera (霍亂 ), Diphtheria (白喉 ) are cause by bacteria

Fungi

• Nutrition: secrete enzyme to break down complex nutrients into simpler forms they can absorb.

• Reproduction: Forming reproductive spores that are carried on wind or rain.

• Diseases caused by fungi: Ringworm (癬 ), Athlete’s foot (香港腳 ), Skin infection(皮膚病 )

Viruses

• Diseases caused by viruses: Measles(痳疹 ), Mumps(腮腺炎 ), Influenza(流行性感冒 )

Protozoa

• They can feed on body tissues and produce effect. For example: Malaria (瘧疾 ), Amoebic dysentery (亞米巴疾痢 ).

Useful of microorganism

A. Putrefaction B. NitrificationC. Nitrogen FixationD. Digestion of celluloseE. As a source of antibioticsF. Sewage treatmentG. Production of antibiotic by PeniclliumH. Bread ProductionI. Wine Production

Bread Production

Glucose + Yeast → Carbon dioxide + alcohol + energy

Wine Production

Sugary food + Yeast→ Fermentation→ Filtering→Beer

Immunization

The end of our presentation~Thank you~