Medium acidic. in the first tube and
econd.
A green plant such as pelargonium supplied with
a strictly mineral liquid is exposed to an air draft
that traverses a solution of sodium bicarbonate
(NaHCO3) labelled by radioactive carbon C. Few
drops of phenolphthalein are added.
Phenolphthalein becomes dark pink in a basic
medium. The chemical reaction liberating carbon
dioxide is represented below:
A
CO.
how can you explain the change in color of phenolphthalein into dark pink?

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answer: angiosperms

dicots

angiosperms are highly evolved plants, they produce seeds which are enclosed within in a carple. these are the largest group of plants on earth. they include trees, shrubs, herbs and small flowering plants. angiosperms exhibit a flowering stage in their life cycle. the flower serves the function of reproduction and fruit formation in majority of angiosperms. dicot is the term used to describe flowering plants that have two seed leaves. dicots are plants which develop seeds which split into two parts called cotyledons. each cotyledon contains one embryo.

here, a small purple flower development indicates that the plant belongs to angiosperms and having two embryonic leaves indicates it belongs to dicots.