Podcast
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
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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Description
Test your knowledge on bacterial structure including nucleoid, ribosomes, plasma membrane, cell wall, capsule, slime layer, and bacterial shapes like Cocci. Learn about the genetic traits determining cell arrangement in bacteria.
