nucleoid
DNA in the bacterial cell is generally confined to this central region. Though it isn't bounded by a membrane, it is visibly distinct (by transmission microscopy) from the rest of the cell interior.
Ribosomes
Ribosomes give the cytoplasm of bacteria a granular appearance in electron micrographs. Though smaller than the ribosomes in eukaryotic cells, these inclusions have a similar function in translating the genetic message in messenger RNA into the production of peptide sequences (proteins).
capsule
This layer of polysaccharide (sometimes proteins) protects the bacterial cell and is often associated with pathogenic bacteria because it serves as a barrier against phagocytosis by white blood cells.
cell wall
Composed of peptidoglycan (polysaccharides + protein), the cell wall maintains the overall shape of a bacterial cell. The three primary shapes in bacteria are coccus (spherical), bacillus (rod-shaped) and spirillum (spiral). Mycoplasma are bacteria that have no cell wall and therefore have no definite shape.
plasma membrane
ra This is a lipid bilayer much like the cytoplasmic (plasma) membrane of other cells. There are numerous proteins moving within or upon this layer that are primarily responsible for transport of ions, nutrients and waste across the membrane.
Flagella
The purpose of flagella (sing., flagellum) is motility. Flagella are long appendages which rotate by means of a "motor" located just under the cytoplasmic membrane. Bacteria may have one, a few, or many flagella in different positions on the cell.
DNA in the bacterial cell is generally confined to this central region. Though it isn't bounded by a membrane, it is visibly distinct (by transmission microscopy) from the rest of the cell interior.
Ribosomes
Ribosomes give the cytoplasm of bacteria a granular appearance in electron micrographs. Though smaller than the ribosomes in eukaryotic cells, these inclusions have a similar function in translating the genetic message in messenger RNA into the production of peptide sequences (proteins).
capsule
This layer of polysaccharide (sometimes proteins) protects the bacterial cell and is often associated with pathogenic bacteria because it serves as a barrier against phagocytosis by white blood cells.
cell wall
Composed of peptidoglycan (polysaccharides + protein), the cell wall maintains the overall shape of a bacterial cell. The three primary shapes in bacteria are coccus (spherical), bacillus (rod-shaped) and spirillum (spiral). Mycoplasma are bacteria that have no cell wall and therefore have no definite shape.
plasma membrane
ra This is a lipid bilayer much like the cytoplasmic (plasma) membrane of other cells. There are numerous proteins moving within or upon this layer that are primarily responsible for transport of ions, nutrients and waste across the membrane.
Flagella
The purpose of flagella (sing., flagellum) is motility. Flagella are long appendages which rotate by means of a "motor" located just under the cytoplasmic membrane. Bacteria may have one, a few, or many flagella in different positions on the cell.
cytoplasm
This contains many of the protiens, molecules, and important substances that the cell needs, as well as keeping the organelles seperate. It is similar to air for us; it has many essential ingredients for continued existence; it provides a medium in which the organelles can exist (living in a vacum is not very easy), and pretty much fills up space.
This contains many of the protiens, molecules, and important substances that the cell needs, as well as keeping the organelles seperate. It is similar to air for us; it has many essential ingredients for continued existence; it provides a medium in which the organelles can exist (living in a vacum is not very easy), and pretty much fills up space.
Mesosome
One structure not shown in our prokaryotic cell is called a mesosome. Not all prokaryotic cells have these. The mesosome is an elaboration of the plasma membrane--a sort of rosette of ruffled membrane intruding into the cell.
One structure not shown in our prokaryotic cell is called a mesosome. Not all prokaryotic cells have these. The mesosome is an elaboration of the plasma membrane--a sort of rosette of ruffled membrane intruding into the cell.
Questions
1. What Is the purpose of the Bacterial Flagellum?
2. What is the name of a part of the cell that is rare to find in Prokaryote?
3. What is a cell wall?
7 comments:
Okay Palauan Monkey (LOL!) here it goes:
Q1. The purpose of the Bacterial Flagellum is motility.
Q2. Mesosome is the name of a part of the bacterial cell that is rare to find in Prokaryote.
Q3. Cell Wall maintains the overall shape in a bacterial cell.
Thank you for the lesson on bacterial cell. Your post has a lot of detail that makes it easy for me to understand. Good Job Harley.
HeY HeY haRleY!! i'm here to answer your questions, wish me luck :)
1. What Is the purpose of the Bacterial Flagellum?
***motility
2. What is the name of a part of the cell that is rare to find in Prokaryote?
***mesosome
3. What is a cell wall?
***its composed of peptidoglycan, and it maintains the overall shape in a bacterial cell.
ok so let me know how i did LoL see you in class tomoro!
My answers would be:
Q1. to make a better world
Q2. Taya bida
Q3. the walls of a cell in prison.
But I know you're looking for these answers:
Q1.Motility
Q2.Mesosome
Q3.cell walls help maintains the shape of a bacterial cell. Composes of peptidoglycan.
1. the bacterial flagellum allows the cell to move and swim around.
2. mesosome
3. the cell wall protects and gives the cell its shape.
1-Motility
2-Mesosome
3-Cell wall maintains the proper structure of the cell, also holds everything inside.
-//saruda--!
Seen any good parades lately? lol.
1. Motility
2. Mesosome
3. Cell wall maintains the structure of the cell and holds everything inside.
Hello! Palauan Monkey...lol. Where the ***l were you last Friday. Iang Hello' olai...lol. ehhh just joking ai agun...
ok.....
#1 is Motility....
#2 is Mesosome...and lastly
#3...Cell wall is composed of peptidoglycan and it maintains the overall shape in a bacterial cell.
Esta Ombre! hehehe...
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