Question

The term photosynthesis was first used by.....
​

Answer 1

be- fore Barnes

.................................................

Answer 2

Answer:

be- fore Barnes

Explanation:

In 1893, Charles Barnes (1858–1910) proposed that the biological process for ‘synthesis of complex carbon com-

pounds out of carbonic acid, in the presence of chlorophyll, under the influence of light’ should be designated as

either ‘photosyntax’ or ‘photosynthesis.’ He preferred the word ‘photosyntax,’ but ‘photosynthesis’ came into com-

mon usage as the term of choice. Later discovery of anoxygenic photosynthetic bacteria and photophosphorylation

necessitated redefinition of the term. This essay examines the history of changes in the meaning of photosynthesis.