Question

Give below is the experiment set- up to establish that one of the atmospheric gases is essential for photosynthesis in plants. (a) Name the atmospherics gas which is essential for photosynthesis. (b) what is kept in watch - glass in figure 'a' and why ?

Answer 1

a) name of the gas is carbondioxide
b) potassium hydroxide is kept in watch glass which is used to absorb CO2

Answer 2

Photosynthesis is the process by which green plants with the use of sunlight synthesizes nutrients from water and CARBON DIOXIDE gas. Plants with the presence of the green pigment chlorophyll are entitled to perform photosynthesis and as a bi product releases oxygen.

A) The gas that is used in the process of photosynthesis is CARBON DIOXIDE.

B) The chemical compound which is kept inside the glass container is anhydrous Pottassium Hydroxide or KOH.

Anhydrous KOH is used in here to absorb in the carbon dioxide gas.