WorksheetsMikrobiologi dan Klasifikasinya
Total questions: 15
Worksheet time: 5mins
Why is Antonie van Leeuwenhoek considered an important figure in the history of microbiology?
He successfully discovered the smallpox vaccine
He developed the theory of biogenesis
He was the first person to observe microorganisms with a simple microscope
He discovered the first antibiotic in the world
How does a light microscope work to magnify very small objects?
By using UV light reflected by the lens
By refracting light through the lens and enlarging the shadow of the object
By using electron attraction
By heating the object until it enlarges
What is the fundamental difference between microbial cells and high-level multicellular living cells?
Microbes do not have a plasma membrane
Microbes cannot reproduce
Microbial cells work independently as a whole individual
Microbial cells can only live in the human body
Why do gram-positive bacteria appear purple after Gram staining?
Because they have flagella that absorb color
Because they do not have a cell wall
Because their cell wall is thick and retains crystal violet
Because they have a cell nucleus that absorbs dye
In the 5 kingdom classification system, why is Monera separated from Protista?
Because Monera cannot move
Because Monera is eukaryotic
Because Monera is prokaryotic and unicellular
Because Monera only lives in the sea
What is the main function of peptidoglycan in bacterial cell walls?
To produce energy
To provide shape and protection to the cell
To assist in Gram staining
To store genetic information
How do cyanobacteria meet their nutritional needs?
By absorbing organic compounds from the environment
By preying on other microbes
By performing photosynthesis like plants
By taking proteins from hosts
Why can Archaebacteria survive in extreme environments like hot springs or methane swamps?
Because they have cell walls made of cellulose
Because their plasma membrane structure is unique and heat-resistant
Because they have photosynthetic pigments
Because they produce natural antibiotics
In virus classification, what distinguishes RNA viruses from DNA viruses?
The location of the virus in the body
The type of protein attacked
The type of genetic material used for replication
The size and shape of the virus
Why can viruses only reproduce within host cells?
Because they need the host's cell wall to move
Because viruses do not have enzymes and organelles for self-replication
Because viruses consume parts of the host's body
Because viruses grow with the help of nutrients from outside
What is the main difference between Myxomycota and Oomycota as slime molds?
Myxomycota has chlorophyll, Oomycota does not
Myxomycota lives in the sea, Oomycota lives on land
Myxomycota has a slime-like phase, Oomycota is thread-like
Myxomycota causes diseases in humans, Oomycota does not
How do protists like protozoa obtain their food in nature?
By capturing sunlight
By absorbing salts from water
By engulfing bacteria and organic particles through phagocytosis
By absorbing gases from the atmosphere
What is the reason fungi are classified as non-chlorophyll organisms?
Because they do not live under sunlight
Because they do not have vacuoles
Because they cannot perform photosynthesis
Because they live in dry environments
Why is the influenza virus classified as an RNA virus?
Because this virus only attacks plants
Because its genome consists of double-stranded DNA
Because this virus divides like bacteria
Because its genetic material is RNA, not DNA
In the context of industry, why is it important for us to understand the classification of microorganisms and viruses?
So that food can spoil faster
To avoid all forms of microbes in the industry
To utilize microbes in production and control of contaminants
So that microorganisms can be completely eliminated from the production system
