List the four major things needed by plants to carry out process of photosynthesis.

Do you think the new reddish leaves of plants also carry out photosynthesis ? What could be the role of their colour ?

____is used to carry out pyrochemical process.

Look at the acivities listed below. Reason out whether or not, work is done in the light of your understanding of the term work. A green plant is carrying out photosynthesis.

Which is true about Autotrophs ?(i) These plants contain Chlorophyll.(ii) These plants prepare their food by the process photosynthesis(iii) The leaves of these plants are in Green colour.(iv) Droseras, Utricularia and Cascuta are examples for these plants.

Photosynthetic organisms occur at different depths in oceam. Do they receive qualitatively and quantitatively the same light ? How do they adapt to carry out photosynthesis under these conditions ?

Answer the following question How can you prove that the leaves other than green also carry out photosynthesis ?

The external photosynthetic factor that influences the process more through plant rather directly on photosynthesis is