Which one of the following process is responsible for the release of oxygen by plants?

A plant was kept in the dark room for a week. When its leaves were tested with iodine solution it did not show the presence of starch.From this experiment we can conclude that __________ is required for photosynthesis.

The main function of chlorophyll is

Which one of the following time a plant may be preparing food?

The tiny pores present on the leaves of plants are called

Which part of a seed provides energy for germination?

Which one of these is of great importance in nature as it helps plants to make their own food in the presence of sunlight?

The main purpose of lowers is to

Which one of the following does not belong to the example of underground stems?

Which one of the following structure of a plant exchanges gases?