BACTE LEC (PROKARYOTIC B) Flashcards
it links to
plasma membrane
Lipoteichoic acid
it links to
peptidoglycan
Wall teichoic acid
Lipopolysaccharides, lipoproteins,
phospholipids *(wala or manipis
lang ang peptidoglycan) *(walang
Lipoteichoic acid)
Gram-negative outer membrane
The inner leaf of the outer
membrane consists of ____
lipid and
protein layer.
○ Alcohol dehydrates
peptidoglycan
○ CV-I crystals do not leave
Gram-positive
○ Alcohol dissolves outer
membrane and leaves
holes in peptidoglycan.
○ CV-I washes out
Gram-negative
*Gram (+) what color
blue or violet (purple)
*Gram (-) what color
red or pink
in VIAS (V stands for)
Crystal Violet (primary stain
for Gram Staining)
in VIAS (I stands for)
Iodine (acts as a mordant - it
increase the affinity to the primary stain)
in VIAS (A stands for)
A - Alcohol (the decolorizer - it
removes the primary stain)
in VIAS (S stands for)
Safranin (secondary stain)
○ Lack cell walls
○ Sterols in plasma
membrane
Mycoplasmas
○ Wall-less or
○ Walls of pseudomurein
(lack NAM and D amino
acids)
Archaea
___ is a wall-less cell.
Protoplast
_____ is a wall-less
Gram-positive cell.
Spheroplast
Protoplasts and spheroplasts are
susceptible to___
osmotic lysis.
it will able to allow polar
substances
Hydrophilic
will allow nonpolar
substances
*Hydrophobic
Movement of a
solute from an area of high
concentration to an area of low
concentration
Simple diffusion
Solute
combines with a transporter protein
in the membrane
Facilitative diffusion:
- movement of solute
*diffusion
movement of water
*osmosis
The movement of water
across a selectively permeable
membrane from an area of high
water concentration to an area of
lower water.
Osmosis:
