explain with an activity of the role of light on plants
Answers
The Role of the light in Plants is Photosynthesis.
Photosynthesis is the process by which the Plant's prepare the Food in the presence of the sunlight and chlorophyll.
In this process Carbon dioxide reacts with water to form Glucose and oxygen.
There are many activity to show the process of the Photosynthesis. Let us show one activity.
Activity ⇒
INTRODUCTION ⇒ The end products of photosynthesis are Oxygen(O2),water and starch.So one of the end products is oxygen ,which is proved by this experiment.
AIM ⇒ To prove oxygen is evovled during photosynthesis in the presence of sunlight.
APPARATUS ⇒ Beaker,water,test tube,hydrilla plant twigs,funnel and sunlight
PROCEDURE ⇒ 1)Place hydrilla plant twigs in a short stemmed funnel and keep it in a beaker containing water.
2)Invert a test tube full of water over the stem of the funnel
3)Place the apparatus in the sun for at least 2-3 hours.
4)After sometime observe the apparatus
OBSERVATION ⇒ 1)Gas bubbles i,e.,oxygen is produced at the end of test tube and remove the test tube gently.
2)Test the gas in the testtube by inserting a glowing incense stick which would burst into flames.
3)This shows the presence of oxygen.
RESULT ⇒ By this experiment, we proved that oxygen is produced during photosynthesis in the presence of sunlight.