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Plant Science > 2.1.3 Leaf Defense > Flashcards

2.1.3 Leaf Defense Flashcards

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Biology 101 flashcards
1
Q

What are Plant Secondary Metabolites (PSM’s) used for?

A

Defense

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2
Q

what are phytoalexins

A

inducible antifungals

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3
Q

what is alleopathy

A

the process by which one plant chemically inhibits another

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4
Q

what are thiophenes?

A

They are photo toxins

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5
Q

example of alleopathy

A

sage inhibits grass growth with camphor

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6
Q

what is a phytoalexin

A

a substance that is produced by plant tissues in response to contact with a parasite and that specifically inhibits the growth of that parasite.

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7
Q

what does passion flower defend itself with

A

cyanogenic glycosides

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8
Q

what did the passion flower try to defend itself against

A

Heliconid butterflies

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9
Q

What are the major secondary metabolites

A

phenolics, alkaloids, terpenoids

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10
Q

what are phenolics derived from

A

phenylalanine

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11
Q

what alkaloids derived from

A

amino acids

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12
Q

what are terpenoids derived from

A

mevalonate

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13
Q

what are the characteristics of secondary metabolites (3)

A

stored in glands and vacuoles
produced in large amounts
biologically active

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14
Q

define ethnobotany

A

study of traditional use of plants

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15
Q

what is artemisisn

A

antimalarial from Chinese plant

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16
Q

What is artemisinin

A

antimalarial plant extract

17
Q

what is taxol

A

drug found in yew, used to treat breast and ovarian cancer, via inhibition of tubulin

18
Q

uses of ginger, what is active in it

A

nausea, motion sickness

gingerols

19
Q

what can feverfew do

A

it eliminates migraine symptoms

20
Q

what can ginkgo help with

A

cognition

21
Q

what can St. John’s wort help with

active principles

A

depression

hyperforin, hypericin

22
Q

Valerian does what

A

improves sleep by increasing levels of GABA

23
Q

what are neutraceuticals

A

foods containing phytochemical conferring health benefits

Plant Science (19 decks)

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