1.1 Microorganisms
Transcript of 1.1 Microorganisms
Microorganisms and their effect on living things
1.1 Classification of microorganisms
Manniseh Yakun
Microorganisms are small living things that can only be seen through microscope
Microorganisms can be found anywhere on earth Some microorganism are useful to human, some
are harmful Can be classified into
Size Shape Method of reproduction Nutrition Habitat
Classification of microorganisms
Bacteria
Bacteria
Size 0.5 – 10 μm, unicellular
Shape Do not have true nucleus, have no nuclear membrane Coccus, bacillus, vibro, spirillum
Bacteria
Method of reproduction Asexual reproduction trough binary fission
Nutrition Parasites, saprophytes or autotrop to obtain nutrient
Bacteria
Habitat Water Air Soil Plants Animals
Viruses
Viruses
Size Smallest microorganisms, seen using electron miroscope 0.02-0.4 μm
Shape Don’t have cytoplasm, nucleus and membrane cell The body covered with protein capsule
Viruses
Method of reproduction Don’t show the living characteristic No breathing, eating and excreting But go through reproduction process in living
cell (host) by duplicating
Duplicating process of virus
Viruses
Nutrition Parasites causing disease Not eat, but using nutrient to duplicates (replication)
Habitat Living cells
Fungi
Fungi Size
10-100μm Can seen using magnifying glass or light microscope.
Shape Plant that have cell wall and nuclei but don’t have
root stem and leaves
Fungi
Method of reproduction-asexual Spore formation Budding process
Fungi
Nutrition Saprophytes – enzymes secretes to digest organic
substance and absorbed through their hyphae Parasites - obtain food from living organism
Habitat Dark and damp
Protozoa
Protozoa
Size - Unicellular 5-250 μm Shape
Aquatic organism single cell Have nucleus and cytoplasm covered with cell membrane Have cilia to move
Protozoa
Method of reproduction Amoeba and Paramecium – binary fission (asexual) Paramecium – Conjugation ( Sexual)
Protozoa
Nutrition Saprophytes – Amoeba and Paramecium Parasites – Plasmodium (cause malaria)
Habitat Aquatic habitats Damp places, living cells
Algae
Algae Size
1- 10000μm Seaweeds can seen with naked eyes
Shape Like plant cell, cellulose cell wall, nucleus, cytoplasm,
chloroplast Don’t have stem, roots and true leaves
Algae
Method of reproduction Asexual reproduction by binary fission Sexual reproduction through conjugation as
spirogyra
Nutrition Have chlorophyll undergoes photosynthesis,
autotrops, producer in food chain
Habitat Damps area and receive sunlight
Complete this table….
Bacteria Viruses Fungi Protozoa Algae
Size
Shape
Reproduction Method
Nutrition
Habitat