1.3 useful microorganism
TRANSCRIPT
USEFUL MICROORGANISM
ROLE OF MICROORGANISM
Decaying process
Decaying process
1. Many bacteria help decompose (menguraikan) dead organism and animal wastes into chemical compound such as ammonia.
2. In sewage treatment plant ( loji rawatan kumbahan),
– bacteria are use to break down the complex animal and plant matter into simple compounds
What is the benefit (kebaikan)?
• Its enriches the soil and makes essential substances available to plants in a form that they can use.
– ia menjadikan tanah lagi subur dan membekalkan sebatian yang diperlukan oleh tumbuhan.
ROLES MICROORGANISM IN DIGESTION
ONE OF THE MAIN COMPONENT OF PLANT IS CELLULOSE
• Cellulose is hard to digest by the animal….• How they digest the cellulose…?• Cellulose can be digest by enzyme named
cellulase.• How they can get cellulase?
Herbivores depend on bacteria that live in their stomach to digest cellulose
This bacteria secretes (merembeskan) cellulase into the stomach
Beside’s animal?
FOOD DIGESTION
• Certain kinds of bacteria live in intestines of human (usus manusia) and other microorganism.
• Why they live in our intestines?• They help in digestion and destroy harmful
microorganism.
BACTERIA THAT HELP IN DIGESTION….
1.Lactobacillus Acidophilus2.Bifidobacteria 3.Streptococus Thermophilus4.Lactobacilus Bulgaricus
Where we can find this bacteria except in intestines ?
YOGURT YAKULT
MEDICINE
• Some type of microorganism produce important drugs called ANTIBIOTICS..
• Functions of antibiotics….• Weaken • Destroy other microorganism
• Penicillium notatum is a GREEN MOULD
• Its produces antibiotic called PENICILLIN
Disease That Can Cured By Using Penicillin
Genetically enginereed
• Some bacteria have been genetically engineered
• Why?• To produce certain vaccines that are used to prevent
infectious disease.• Produce insulin which used to treat diabetics
AGRICULTURE
• Bacteria play important roles to promote the plant growth..
• Bacteria• Break down dead plants and dead animals by releasing
AMMONIA
AMMONIA
• Adds nitrogen into the soil (tanah)• The nitrogen fixing bacteria in the soil change
the ammonia into nitrates.
• This nitrates will be used by plants
Ammonia Nitrates
nitrogen fixing bacteria
Why plants need nitrates?
• They need nitrates to make amino acids
• But…………………………….• Pea and bean plants use bacteria Rhizobium
which directly convert nitrogen into acid amino
Nitrates Amino acids
Rhizobium bacteria• Live in plant roots
INDUSTRY
• Bacteria are used in the production of• Milk• Yogurt• Cheese • Vinegar • Soy sauce • Chocolate • Certain vitamin B• Citric acids
Production of bread
1. Yeast causes the bread to rise by producing carbon dioxide from the carbohydrates in the dough.
2. Carbon dioxide gas bubbles released in the dough causes it to rise.
3. So the bread become fluffy
YEAST
Production of milk, yogurt n cheese
• Certain bacteria are used in the production of milk, yogurt and cheese.
• This process called as FERMENTATION