RESINS part 1

are solid or semisolid substances of complex chemical nature

resins

resins are ________ or _________ of plant tissues

secretion or exudation

resins are secretion or exudation of plant tissues, produced either _________ or due to __________ condition

naturally
due to pathological conditions

___________ are resins that are polymeric products formed through certain condensation reactions

artificial resins

artificial resins are (MONOMERIC / POLYMERIC) products formed through certain ______________ reactions

polymeric
condensation

Resins are formed of compounds:
RICH in _____________
LOW in ______________
FREE from ____________

carbon
oxygen
nitrogen

Resins are complete mixtures of the following:
___________________
___________________
___________________
___________________
___________________
___________________

resin acids
resin alcohols
resin phenols
resin esters
resenes
glycoresins

a constituent of resins in which its example is:
resinolic acid

resin acids

a constituent of resins in which its example is:
resinol

resin alcohol

a constituent of resins in which its example is:
resinotannols

resin phenols

a constituent of resins in which its example is:
resin alcohols + aromatic acids

resin esters

a constituent of resins in which are neutral compounds

resenes

a constituent of resins in which its example is:
resin alcohol + sugar

glycoresins

___________ units are the fundamental building blocks of all true resins

isoprene units

resins are
(NON-CRYSTALLIZABLE/ CRYSTALLIZABLE)
(OPAQUE / TRANSLUCENT)
masses

non-crystallizable
translucent

resins
(SOFTEN / HARDEN)
(DECOMPOSE / MELT)
on heating

soften
melt

resins burn with (SMOKELESS / SMOKY) flames on ignition

smoky

give the SPGR of resins: _______________

0.9 - 1.25

resins contain (LARGE / SMALL) # of carbon atoms

large

The thin film of resin on drying becomes (SOFT / HARD) and (OPAQUE / TRANSPARENT) which is (AFFECTED / UNAFFECTED) by moisture and air

hard and transparent
unaffected

resins are usually found in HOMOGENOUS combination with other plant metabolites and hence, collectively known as ______________

resin combination

resins are
practically (SOLUBLE / INSOLUBLE) in water;
frequently (SOLUBLE / INSOLUBLE) in ethanol, volatile oils, fixed ois, chloral hydrate, and nonpolar organic solvents (benzene, n-hexane, and petroleum ether)

practically insoluble
frequently soluble

resins are regarded as the end products of __________________

destructive metabolism

________________ are regarded as the end products of destructive metabolism

resins

majority of resins undergo ______________ whereby their color gets dark with impaired solubility

slow atmospheric oxidation

acidic resins, when treated with alkali/basic solutions, yield _________ or __________

soaps or resin-soaps

resins are generally distributed in ________ and rarely in ________

general in PLANTS
rarely in INSECTS

resins are present in the ducts or cavities known as ____________________ ducts

schizolysigenous / schizogenous ducts

what are the two types of resins:

____________________
____________________

Physiological (Normal) resins
Pathological (Abnormal) resins

___________ aka normal resins

physiological resins

___________ aka abnormal resins

pathological resins

a type of resin that are preformed in the plants and making injury to the plants can increase their yield (resin of Pinus)

physiological resins

a type of resin that are found in the plants only when injury or incision is made (benzoin, Tolu balsam)

pathological resins

classification of resins based on formation that are formed as a normal product of metabolism without making injury to the plants

physiological resins

classification of resins based on formation that are formed as a result of wound, injury or abnormal circumstances

pathological resins

what classification of resins based on formation are the following:

benzoin, colophony, balsams, aloe resin

pathological resins

what are the different classifications of resins based on chemical nature?

resin acids
resin alcohols
resin phenols
ester resins
resenes

what classification of resins based on chemical nature is this:

resinolic acid

resin acids

what classification of resins based on chemical nature is this:

resinols

resin alcohols

what classification of resins based on chemical nature is this:

resinotannols

resin phenols

what classification of resins based on chemical nature is this:

neutral compounds

resenes

what are the different classifications of resins based on occurrence with other secondary metabolites?

oleoresin
gum resin
oleo-gum resin
glycoresins
balsams

a classification of resins based of occurrence with other secondary metabolites that are naturally occurring mixtures of volatile oils and resins

oleoresins

a classification of resins based of occurrence with other secondary metabolites that are naturally occurring mixtures of volatile oil, gums/mucilagenous compounds with a resin

oleo-gum resin

a classification of resins based of occurrence with other secondary metabolites that are resins in combination with sugar compounds via glycosidal linkages

glycoresins

a classification of resins based of occurrence with other secondary metabolites that are resins in combination with benzoic or cinnamic acid either free or combined

balsams