Flashcards in Ch 3 - Cell Structure Deck (26)
Thin structure that surrounds the cell
_______ and ________help stabilize membrane by forming ionic bonds with negative charges on the phospholipids
Mg2+ and Ca2+
membrane-strengthening agents found in bacteria
sterols and hopanoids
what type of phospholipid linkages are in Archae?
what type of phospholipid linkages are in Bacteria and Eukarya?
instead of lipids made of fatty acids, archae have ______
transport Driven by the energy in the proton motive
Chemical modification of the transported
substance driven by phosphoenolpyruvate
transport where periplasmic binding proteins are involved and energy comes from ATP
Las permease is what type of transport?
what type of transport is the Phosphotransferase system?
responsible for exporting proteins through and inserting into prokaryotic membranes
Rigid layer that provides strength to cell wall
does gram (-) or gram (+) have the peptide link interbridge?
Common to have teichoic acids embedded in the cell wall (G- or G+)?
cell wall contains 10% peptidoglycan (G+ or G-)?
cell wall contains up to 90% peptidoglycan (G+ or G-)?
channels for movement of hydrophilic low-molecular weight substances
space located between cytoplasmic and outer membranes
instead of peptidoglycan, archae have ______
Polysaccharide layers that assist a cell in attachment to surfaces
capsules and slime layers
Filamentous protein structures that allow cells to stick to surfaces
Filamentous protein structures that allow for motility and attachment to surfaces
Highly differentiated cells resistant to heat, harsh chemicals, and radiation
are endospores present in some gram-positive or gram-negative bacteria?