Which water-soluble yellowish pigment is present in the petals of Dahlia?

Select the correct option for primary metabolites.

Which of the following secondary metabolites are used as drugs?

Secondary metabolites such as nicotine,strychnine,and caffeine are produced by plants for their:

Substances like nicotine,caffeine,quinine,strychnine,and opium are obtained from plants. What function do these substances provide to the plants?

Match the column-$I$ with column-$II$.

Column-$I$	Column-$II$
$(A)$ Alkaloid	$(I)$ Curcumin
$(B)$ Toxin	$(II)$ Morphine
$(C)$ Lectins	$(III)$ Ricin
$(D)$ Drugs	$(IV)$ Concanavalin-$A$

Choose the correct answer from the options given below: