Explanation

Protists are distinctly microscopic unicellular organisms. The cell structure is typically eukaryotic. Internally, the cells have distinct membrane bound organelles like nucleus with chromosome, mitochondria, Golgi bodies, endoplasmic reticulum, ribosomes (80S), etc. The nucleus consists of chromatin, nucleolus and nucleoplasm surrounded by porous nuclear envelope. Some motile protists may have flagella or cilia for locomotion