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Questions and Answers
Bacteria reproduce by dividing into two equal daughter cells through ______
Bacteria reproduce by dividing into two equal daughter cells through ______
binary fission
Bacteria are enclosed in cell walls usually composed of substance called ______
Bacteria are enclosed in cell walls usually composed of substance called ______
peptidoglycan
Bacillus is a bacterial shape that is ______ shaped
Bacillus is a bacterial shape that is ______ shaped
rod
Prokaryotic cells are about 10x smaller than ______ cells
Prokaryotic cells are about 10x smaller than ______ cells
Coccus is a bacterial shape that is ______ or ovoid
Coccus is a bacterial shape that is ______ or ovoid
Bacteria like Escherichia coli can grow from just one cell to 1 million cells in less than 7 hours under the right conditions through ______
Bacteria like Escherichia coli can grow from just one cell to 1 million cells in less than 7 hours under the right conditions through ______
Archaea lack a nucleus and other membrane-bound organelles, making them ___________ organisms
Archaea lack a nucleus and other membrane-bound organelles, making them ___________ organisms
Archaea are among the simplest, most primitive forms of life and are considered ___________
Archaea are among the simplest, most primitive forms of life and are considered ___________
Archaea have cells walls that do not contain ___________
Archaea have cells walls that do not contain ___________
Archaea live in extreme conditions, such as extreme halophiles, hyperthermophiles, and ___________
Archaea live in extreme conditions, such as extreme halophiles, hyperthermophiles, and ___________
Monotrichous bacteria have a ___________ flagellum
Monotrichous bacteria have a ___________ flagellum
Peritrichous bacteria have flagella distributed over the ___________ cell
Peritrichous bacteria have flagella distributed over the ___________ cell
Bacterial Structure – all procaryotes have a nucleoid, ribosomes, and a plasma membrane. Most bacteria also have a cell wall and some are further enveloped by a capsule or slime layer, also known as ______
Bacterial Structure – all procaryotes have a nucleoid, ribosomes, and a plasma membrane. Most bacteria also have a cell wall and some are further enveloped by a capsule or slime layer, also known as ______
Arrangement of cells is a stable, genetically determined trait of a bacterial species. Cocci are spherical organisms that can be round, oval, elongated, or flattened on one side. Streptococci are cocci that remain attached in ______ patterns
Arrangement of cells is a stable, genetically determined trait of a bacterial species. Cocci are spherical organisms that can be round, oval, elongated, or flattened on one side. Streptococci are cocci that remain attached in ______ patterns
Bacilli are ______ shaped organisms
Bacilli are ______ shaped organisms
Bacilli that are short and stumpy and appear ovoid are referred to as ______
Bacilli that are short and stumpy and appear ovoid are referred to as ______
Spirals have one or more twists and usually occur singly. Spirochetes are helical and flexible, they are a type of ______
Spirals have one or more twists and usually occur singly. Spirochetes are helical and flexible, they are a type of ______
Monomorphic bacteria are bacteria that maintain a ______ shape
Monomorphic bacteria are bacteria that maintain a ______ shape
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Study Notes
Bacterial Reproduction
- Bacteria reproduce by binary fission, which is a process of dividing into two equal daughter cells
Bacterial Structures
- Bacteria are enclosed in cell walls typically composed of peptidoglycan
- Bacillus is a bacterial shape that is rod shaped
- Coccus is a bacterial shape that is spherical or ovoid
Bacterial Growth
- Prokaryotic cells are about 10x smaller than eukaryotic cells
- Bacteria like Escherichia coli can grow exponentially from just one cell to 1 million cells in less than 7 hours under ideal conditions
Archaea
- Archaea are prokaryotic organisms, lacking a nucleus and other membrane-bound organelles
- Archaea are considered extremophiles as they are among the simplest, most primitive forms of life
- Archaea have cell walls that do not contain peptidoglycan
- Archaea live in extreme conditions, such as extreme halophiles, hyperthermophiles, and methanogens
Bacterial Flagella
- Monotrichous bacteria have a single flagellum
- Peritrichous bacteria have flagella distributed over the entire cell
- Bacterial Structure - all prokaryotes have a nucleoid, ribosomes, and a plasma membrane.Most bacteria also have a cell wall and some are further enveloped by a capsule or slime layer, also known as glycocalyx
Arrangement of Bacterial Cells
- Arrangement of cells is a stable, genetically determined trait of a bacterial species.
- Streptococci are cocci that remain attached in chains patterns.
- Bacilli are rod shaped organisms.
- Bacilli that are short and stumpy and appear ovoid are referred to as coccobacilli
- Spirochetes are helical and flexible, they are a type of spiral shaped bacteria.
- Monomorphic bacteria are bacteria that maintain a single shape.
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