OBJECTIVE FORESTRY

Detailed explanation-1: -The cell including only cytoplasm, organelles, and the nucleus is called protoplasm. In 1835, a scientist named Dujardin first discovered the protoplasm.

Detailed explanation-2: -Thus, we can conclude that Purkinje introduced the term protoplast in 1939. He firstly observed in 1835 that living animal cells contain some juice, then after performing required experiments, he confirmed the fact of presence of protoplasm and then he published the work in 1839.

Detailed explanation-3: -Answer: In 1835 scientist Dujardin introduced us to the substance that was later on named protoplasm; he originally referred it to as “sarcode”. In 1839, J.E. Purkinje actually coined the term – ‘protoplasm’.