HORTICULTURE

Detailed explanation-1: -Cells also have a set of “little organs", called organelles, which are adapted and/or specialized for carrying out one or more vital functions. Organelles are found only in eukaryotes and are always surrounded by a protective membrane.

Detailed explanation-2: -The smallest organelle is ribosome. The diameter of ribosome is about 20 nm. It is the site for the manufacture of proteins within the cell.

Detailed explanation-3: -A small structure in a cell that is surrounded by a membrane and has a specific function.

Detailed explanation-4: -In cell biology, an organelle is a specialized subunit, usually within a cell, that has a specific function. The name organelle comes from the idea that these structures are parts of cells, as organs are to the body, hence organelle, the suffix-elle being a diminutive.