Chapter 4 prokaryotic cell Structure
The term for one polar flagellum.
Equal solute concentrations.
The Glycerol Head
Which region of the phospholipid molecule is hydrophyllic?
Water loss from a bacterial cell, and the plasma membrane pulls away from the cell wall is called
This method of moving molecules across the membrane uses proteins embedded in the membrane, and uses ATP energy to move molecules against (up) the concentration gradient.
The appendage used for conjugation in bacteria.
Plural form of the round or spherical shape of bacteria.
Is the glycerol head of a phospholipid molecule polar or non-polar?
What is the term for the outer membrane in gram (-) cell walls?
D-Glutamic acid, D-Alanine
Name 2 unique amino acids found in the peptidoglycan of bacterial cell walls.
A firmly attached glycocalyx
Gram positive cells appear _____ after the gram stain procedure.
NAG and NAM
The two monosaccharides which form the sugar backbone of the cell wall peptidoglycan.
The prefix that identifies long chains of cells.
The type of bacterial appendage (fine, hairlike) used for attachment, not motility.
Bacillus, Clostridium, Sporosarcina
Name the 3 genera which form endospores.
The portion of the flagellum that links the filament to the basal body.
The solution surrounding the cell is considered hypertonic .
A cell with an internal salt concentration of 0.1% salt is placed in a solution of 2% salt solution. Is the solution surrounding the cell considered hypotonic or hypertonic?
Do gram negative cells have thick or thin peptidoglycan layers?
Does diffusion move molecules down or up the concentration gradient
How many rings are contained in the basal body of gram negative bacteria?
The insertion of the proteins.
Is it the proteins or the fatty acid tails which are responsible for giving the "Fluid Mosaic Model" of the plasma membrane its MOSAIC portion of the name?
The term for bacteria that have a single flagellum at each end.
This method of moving molecules across the membrane uses proteins embedded in the membrane, but does not use ATP energy. It also moves molecules down the concentration gradient.
This is the diffusion of water.
In a solution consisting of salt dissolved in water, which is the solute?
Gas vacuoles are common in what type of bacteria?
Fatty Acid Tails
Which region of the phospholipid molecule is hydrophobic?
The term for bacteria which have a cluster of flagella at one or both ends
The major bacterial genus that has bacteria with axial filaments
When the solute concentration is less.
The term for membranes which allow some molecules to pass through while blocking passage of other molecules.
What molecules are found in gram positive cell walls and NOT in gram negative?
Adjacent rows of NAG and NAM are crosslinked by these.
O Polysaccharide of the LPS layer of gram (-) cells acts as _______.
When a substance is chemically altered as it is moved across the plasma membrane
The type of filaments which wrap around the bacterial cell and give it a corkscrew type movement.
When the solute concentration is greater.
Out of the cell.
A cell with an internal salt concentration of 0.1% salt is placed in a solution of 2% salt solution. Which way will water move, into or out of the cell?
The term for flagella that are spread evenly around the surface of the bacterium
What do metachromatic granules contain?
Dormant, resistant structures in bacteria.
Lipid A of the LPS layer of gram (-) cells acts as _______.
A glycocalyx that easily sluffs off, loosely attached.
How many rings are contained in the basal body of gram positive bacteria?
Another name for passive transport.
Plural form of the rod or capsule shape of bacteria.
Gram negative cells appear _____ after the gram stain procedure.
The prefix for pairs of bacteria stuck together.
Do gram positive cells have thick or thin peptidoglycan layers?
The prefix that identifies grapelike clusters of cells.