If human use of spices in food preparation evolved as a means of helping to disc

Question

If human use of spices in food preparation evolved as a means of helping to discourage microbial growth and spoilage, which of the following might be more prevalent in plants used as spices?

Select one:

a. glycosides

b. thorns

c. terpenes

d. alkaloids

In tropical Africa, plants from the milkweed family are traditionally used to prepare arrow poisons when hunting large game. A poison arrow prepared from one of these plants can quickly bring down a hippopotamus due to cardiac arrest. The active secondary chemical in this poison is:

Select one:

a. a terpene

b. a phenolic

c. a glycoside

d. an alkaloid

Explanation / Answer

Answer:-1

a. glycosides

b. thorns

c. terpenes

d. alkaloids

Option (C) is correct

All of these components are the secondary metabolite except throns. Throns are the part of the direct physical defense system in plants, Alkaloids function is not clearly mentioned in case of plants, but some time it defined as waste product of plants. In few varieties of plants it helps in the seed growth. Glycosides used for purpose of chemical storage in plants. Terpenes are the compound those com e in contact with microbial pathogen or fungus to break down the pathogenic effect of pathogen for example phytoalexins.

Answer:- 2

a. a terpene

b. a phenolic

c. a glycoside

d. an alkaloid

Option (C) is correct

Thick viscous fluid of milkweed family plant contains the cardenolides which belongs to the glycoside. These can easily bring down the hippopotamus due to cardiac rest.

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