ACT 3-4 ( PPT NI MA’AM ) Flashcards
is a heterogeneous mixture in which the dispersed particles are intermediate in size between those of a solution and a suspension. The particles are spread evenly throughout the dispersion medium, which can be a solid, liquid, or gas. Because the dispersed particles of are not as large as those of a suspension, they do not settle out upon standing.
Our cells are made up of 70% - 90% water, specifically in our cytoplasm.
Colloids
Boiling 100mL of distilled water in a beaker and add 0.5 ml of saturated ferric chloride will create?
Ferric Hydroxide suspension
in the procedure of reversibility, before letting it sit for 30 minutes what did you add?
1mL 10% Magnesium sulfate (MgSO4)
in reversibility procedure, if no precipitate forms in the gelatin solution, what should be added?
Solid Magnesium Sulfate (MgSO4)
is the semi-fluid substance of a cell that is present within the cellular membrane and surrounds the nuclear membrane. Most of the cellular activities occur in here. Metabolic pathways like glycolysis and cellular processes like cell division take place in here.
- behaves like a sol-gel
Cytoplasm
A lyophobic colloid system and is one in which there is little attraction between the colloid particles and the dispersion medium.
suspensoid
A lyophilic colloid system and is one in which the colloidal particles have a high affinity for the dispersion medium and are combined with some of the medium.
emulsoid
is the net passive movement of particles (atoms, ions or molecules) from a region in which they are in higher concentration to regions of lower concentration. It continues until the concentration of substances is uniform throughout. it is possible because of kinetic motion or random movements and collision of the molecules.
Diffusion
is the net movement of water across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration. It is worthwhile to note that the net flow or direction always makes the more concentrated solution more dilute. it is important in many biological processes, and it often takes place at the same time that time that solutes diffuse or are transported.
Osmosis
solution that has a higher solute concentration outside the cell than inside, causes shrinkage
Hypertonic solution
solution that has same concentration of solutes both inside and outside the cell, no net movement used to maintain fluid balance.
Isotonic
solution that has a higher solute concentration inside the cell than outside, causes lysis or swelling.
Hypotonic
in water is used to treat low blood sugar (hypoglycemia), insulin shock, or dehydration (fluid loss). __________ in water is also given for nutritional support to patients who are unable to eat because of illness, injury, or other medical condition.
initially isotonic and provides free water when dextrose is metabolized (making it hypotonic), expands ECF and ICF, helpful in rehydrating and excretory purposes, and used to treat hypernatremia.
Dextrose 5%
similar to lactated ringers but does not contain a sodium lactate.
Ringer’s solution
is a sterile solution for fluid and electrolyte replenishment. It restores fluid and electrolyte balances, produces diuresis, and acts as alkalizing agent (reduces acidity).
Lactated Ringer’s
Isotonic concentrations of sodium chloride are suitable for parenteral replacement of chloride losses that exceed or equal the sodium loss.
isotonic solution choice for expanding ECF volume, infused to correct extracellular fluid volume deficit, used alongside administration of blood products, and used to replace large sodium losses such as burn injuries and trauma.
NSS (0.9& NaCl)/ 0.9% Sodium chloride
used for replacing water in patients who have hypovolemia with hypernatremia.
0.45% Sodium Chloride Solution
