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Pre Lab Dialysis BIOCHEM > PreLab Exp4 > Flashcards

PreLab Exp4 Flashcards

1
Q

Animal membranes, cellophanes and collodion has how many angstrom?

A

7 angstrom diameter

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2
Q

How many angstrom can pass through easily through the pores?

A

Less than 7

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3
Q

Retains in semi permeable materials

A

Colloids

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4
Q

Larger molecules

A

Colloids

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5
Q

Smaller colloids

A

Crystalloid

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6
Q

NaCl

A

Crystalloid

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7
Q

Polysaccharide

A

Colloids

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8
Q

Aggregates of molecules with a diameter of 1um to 100 um

A

Colloids

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9
Q

Unaffected by gravity

A

Colloids

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10
Q

Remain suspended in the solvent indefinitely

A

Colloidal Dispersion/Solution

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11
Q

Suspension of TINY PARTICLES of one substance

A

Dispersed Phase

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12
Q

A MEDIUM where the particles are SUSPENDED

A

Dispersion Medium

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13
Q

Has affinity for solvents

A

Emulsoids

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14
Q

Emulsoids forms what substance when in contract with water

A

Emulsoids

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15
Q

Lyophilic colloid system

A

Emulsoids

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16
Q

NO AFFINITY for water

A

Suspensoids

17
Q

Lyophobic/hydrophobig colloid system

A

Suspensoids

18
Q

Starch+water

A

Colloidal Dispersion

19
Q

Small molecules that can pass through all cell membranes

A

Crystalloids

20
Q

Examples of crystalloids

A

Glucose
Salt
Electrolytes
Magnesium

21
Q

In the cellophane solution, what reagent is used in TT A?

A

AgNo3

22
Q

In the cellophane solution, what reagent is used in TT B?

A

Lugol’s iodine

23
Q

In the dialysate solution, what reagent is used in TT A?

A

AgNo3

24
Q

In the dialysate solution, what reagent is used in TT A?

A

Lugol’s iodine

25
Q

In the cellophane solution, what is the expected result in TT A if it is a CRYSTALLOID?

A

Forms a white ppt

26
Q

In the cellophane solution, what is the expected result in TT B if it is a COLLOID?

A

If STARCH is PRESENT, there will be a color development of DARK-BLUE BLACK

27
Q

In the dialysate solution, what is the expected result in TT A if it is a CRYSTALLOID?

A

White ppt is formed

28
Q

In the dialysate solution, what is the expected result in TT B if it is a COLLOID?

A

No development of colloid, wherein starch remained in the cellophane

Pre Lab Dialysis BIOCHEM (1 decks)

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