State $3$ vegetables, $3$ fruits$/$berries$,$ and $3$ flowers containing anthocyanins. State the main function of anthocyanins in plants.

Look up related compounds: coumarin, isocoumarin, and chromone and draw the individual structures.

Why do you need only small amount of indicator to determine the $pH$ of a solution?

What colors would your respectively observe if you add red cabbage extract to $($a$)$ lemon juice,

$($b$)$ tap water, and $($c$)$ soap?