Alkaloids Flashcards

1
Q

Alkaloid role in plants

A

keep away predators

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2
Q

what is an alkaloid

A

naturally occurring organic compound containing basic nitrogen atoms

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3
Q

define taxonomic classification

A

according to family

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4
Q

Example of alkaloids + name and part of plant + pharmacological action

A

caffeine, from the leaves of tea plant. used as stimulant

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5
Q

define what heterocyclic

A

when the cyclic structure of a compound is made with at least 2 different types of atom ie carbon and nitrogen

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6
Q

define a proto alkaloid

A

non-heterocyclic ie only carbon cyclic structure ie mescaline

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7
Q

difference between true and pseudo

A

true is derived from amino acid

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8
Q

solubility in water

A

mostly insoluble

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9
Q

example of true alkaloid

A

nicotine

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10
Q

example of pseudo alkaloid

A

caffeine

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11
Q

physical forms

A

crystallin, amorphous solids. volatile liquid; nicotine, non volatile

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12
Q

colour

A

mostly colourless

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13
Q

test of alkaloids

A

Mayers reagent, Wagers r, Hagers r, Dragendorffs

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14
Q

what do the test tell you?

A

only if present or not present

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15
Q

test for purity

A

murexidine

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16
Q

tropane skeleton (weird looking 3D cyclic structure) pharmacological effects

A

Anticholinergic

stimulant