Question

Compare the process of photosynthesis and the process of baking a cake

Answer 1

Answer: Both the processes require heat and are chemical reactions.

Step-by-step explanation:

Chemical reaction is defined as the reaction in which chemical composition and properties of a substance gets changed. They are usually irreversible reactions.

Photosynthesis is defined as the process by which the producers make glucose with the help of carbon dioxide and water in the presence of sunlight. The chemical equation representing this reaction follows:

`6CO_2+6H_2O+\text{light}\rightarrow C_6H_(12)O_6+6O_2`

The energy written on the left side of the reaction means that energy is getting absorbed in this process. Also, here new substance that is glucose is getting formed. Thus, it is also a chemical reaction.

Baking a cake requires heat energy for the dough to rise to an optimum level. The heat helps the baking powder to produce tiny bubbles of gas known as carbon dioxide. Thus, this is also a chemical reaction.

Hence, both the processes require heat and are chemical reactions.

Answer 2

Light reactions take place in the thylakoid membrane. The sunlight here is converted into the ATP and NADPH. The chlorophyll absorbs the light energy and started a chain of reaction that results in the formation of ATP, oxygen, NADPH. Both these molecule are used in dark reaction to make sugar.

The light reactions are similar to the process of baking cake in the oven. The dark reaction takes place in the stroma. Carbon dioxide is changed to sugar by using the energy from the ATP and NADPH. This is known as the Calvin cycle.