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PCOG > Rubber, Gutta, Percha > Flashcards

Rubber, Gutta, Percha Flashcards

1
Q

Occurs in the form of microscopic particles suspended in a liquid serum

A

Rubber, Gutta percha

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2
Q

t/f: the milky character of latex depends on the presence of a refractive index greatly different from that of the dispersion medium

A

true

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3
Q

contained in specialized latex cells or vessels

A

latex

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4
Q

families with rubber formation

A

MORA, EUPHORBI, APOCYANA, ASCLEP, ASTERA

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5
Q

present in the latex of the Papaveraceae

A

alkaloids

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6
Q

proteolytic enzyme found in the latex of Carica

A

papain

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7
Q

Malaysia rubber commercial use

A

Hevea brasiliensis (Euphorbiaceae)

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8
Q

Philippine rubber commercial use

A

Indian Rubber tree (Ficus elastica)

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9
Q

polyterpene which consists of linear chains of about 1500 to 60,000 C5-isoprenoid units linked by cis double bonds

A

rubber (ficus)

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10
Q

t/f: rubber cannot be vulcanized

A

false. CAN BE vulcanized

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11
Q

Purified, coagulated latex obtained from trees of the genera Palaquium and Payena (Sapotaceae)

A

Gutta percha

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12
Q

Sapotaceae gutta percha

A

Chico and Star Apple

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13
Q

t/f: gutta percha becomes plastic when heated to about 45-60°C, and has fewer units than rubber

A

true. thus, it cannot be vulcanized

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14
Q

Used in the form of chloroformic solution as a means of applying drugs to the skin, & covering moist dressing

A

gutta-percha tissue

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15
Q

used in dentistry and root canal treatment

A

gutta percha

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16
Q

was the base used for original chewing gum (basis for chiclet chewing gum)

A

chicle

17
Q

Manilkara zapota (Sapotaceae)

A

sapodilla plum

18
Q

dried latex obtained from Mimusops balata (Sapotaceae)

A

Balata

19
Q

t/f: indian rubber has potential for worms and dermatitis

A

true

19
Q

possesses the general properties of chicle & is employed in the manufacture of bubble gum

A

balata

20
Q

Scientific name: Ficus elastica
Family: Moraceae

A

Indian Rubber

21
Q

Indian rubber constituents

A

Caoutchouc, cerotic acid

22
Q

chico constituent

A

saponin

22
Q

t/f: Rubber or Gutta Percha is from the + of n molecules of isopentyl pyrophosphate (IPPP)

A

true

23
Q

Achras zapota/ Manilkara zapota

A

Chico / Sapodilla

24
Q

chico use

A

Use: For diarrhea, fever

PCOG (12 decks)

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