
Bacterial Characteristics and Functions

Interactive Video
•
Biology, Science, Chemistry
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a characteristic of prokaryotic cells?
They have a nucleus.
They contain internal membrane-bound organelles.
They lack a nucleus.
They are typically larger than eukaryotic cells.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key difference between gram-positive and gram-negative bacteria?
Gram-positive bacteria have a thin peptidoglycan layer with an outer membrane.
Gram-negative bacteria have a thick peptidoglycan layer without an outer membrane.
Gram-positive bacteria have a thick peptidoglycan layer without an outer membrane.
Gram-negative bacteria lack a peptidoglycan layer.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are plasmids?
Proteins found in the cell membrane.
Extra chromosomal loops of DNA.
Structures used for movement.
Main chromosomes in bacteria.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do phototrophic bacteria obtain energy?
By consuming other organisms.
From sunlight.
By breaking down chemical compounds.
Through fermentation.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which process is responsible for adding oxygen to the atmosphere over 2 billion years ago?
Fermentation
Nitrogen fixation
Photosynthesis by blue-green algae
Methanogenesis
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of methanogens in the environment?
They decompose organic matter.
They produce oxygen.
They fix nitrogen.
They produce methane.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term for bacteria that can live with or without oxygen?
Facultative aerobes
Anaerobes
Obligate anaerobes
Aerobes
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