Eco Factors & Bacteria Quiz
Preview:
What type of cell is bacteria?
A. eukaryotic
B. prokaryotic
C. multicellular
Why are some bacteria considered extremophiles?
A. They are not affected by environmental conditions
B. They thrive in extreme environmental conditions.
C. They prefer moderate temperatures
D. They are microscopic in size
True or False:
Bacteria is found on our body, especially in our intestines and skin.
A. TRUE
B. FALSE
Which type of bacteria is responsible for causing diseases?
A. Friendly bacteria
B. Neutral bacteria
C. Pathogenic bacteria
D. Harmless bacteria
What structure is used for movement?
A. ribosomes
B. cytoplasm
C. flagella
Bacteria are prokaryotes, meaning they ________.
A. lack a nucleus
B. are very large
C. contain no DNA
D. have a cytoplasm
Small organelles that turn genes into proteins
A. Cytoplasm
B. Plasmid
C. Ribosomes
D. Nucleus
Small circular pieces of DNA that can be shared between bacteria.
A. Cytoplasm
B. Plasmid DNA
C. Chromosome
D. Ribosome
Strong outer layer that protects the bacterial cell from infection by viruses and attack from immune cells.
A. Pilli
B. Cell wall
C. Capsule
D. Flagella
Explain the role of decomposer bacteria in an ecosystem.
A. Decomposer bacteria regulate the climate in the ecosystem.
B. Decomposer bacteria break down dead organisms and organic matter, releasing nutrients back into the ecosystem.
C. Decomposer bacteria are responsible for pollination in the ecosystem.
D. Decomposer bacteria produce energy for other organisms in the ecosystem.
Is the bacterial DNA surrounded by a nucleus?
A. No
B. Yes
Bacteria can become resistant to antibiotics
A. TRUE
B. FALSE
Bacteria reproduce asexually and result in offspring that are
A. identical
B. different
What is the job of the cell wall in bacteria?
A. To provide protection
B. To make protiens
C. To hold organelles in place
D. To hold water and nutrients
bacteria has
A. no cell wall and no cell membrane
B. both cell wall and cell membrane
C. cell wall
D. cell membrane
What is the job of the cell membrane in bacteria?
A. Decides what enters and exits the cell
B. To make protiens
C. To hold organelles in place
D. To hold water and nutrients
What is the difference between abiotic and biotic factors?
A. Abiotic factors are living, while biotic factors are non-living.
B. Biotic factors are non-living, while abiotic factors are living.
C. Abiotic factors are non-living, while biotic factors are living.
D. Abiotic factors and biotic factors are the same.
Bacterial cells are…
A. Prokaryotes
B. Eukaryotes
True or False:
Bacteria is found almost everywhere.
A. TRUE
B. FALSE
Which of the following is a true statement about bacteria?
A. Bacteria exist in only a few environments on earth
B. Bacteria can grow to extremely large sizes
C. Most bacteria are harmful to humans
D. Bacteria can be both harmful and helpful to humans
Small protrusions of cell membrane around the outside of the bacterial cell that allow bacteria to attach to one another, and share DNA.
A. Flagella
B. Cell membrane
C. Pilli
D. Cell wall
Jelly like substance that fills the inside of the bacterial cell.
A. Flagella
B. Chromosome
C. Plasmid
D. Cytoplasm
Which is a type of bacteria?
A. Salmonella
B. the common cold
C. The flu
D. Covid-19
What are the three main shapes of bacteria?
A. squares
B. circles
C. triangles
D. cocci, bacilli, spirilla
How do bacteria contribute to the breakdown of dead organisms?
A. Bacteria absorb dead organisms through osmosis.
B. Bacteria secrete enzymes to break down complex organic molecules in dead organisms.
C. Bacteria use photosynthesis to break down dead organisms.
D. Bacteria communicate with dead organisms to facilitate breakdown.
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