The correct answer is Robert Hooke. A cell membrane is also called the plasma membrane, a thin membrane that surrounds every living cell. Cell membranes are composed primarily of fatty-acid-based lipids and proteins. Robert Hooke discovered the cell membrane in the late 1600s.
Mitochondria - Albert von Kolliker studied mitochondria in muscle cell in 1857; Richard Altmann first recognized them as cell organelle in 1894; Term "mitochondria' coined by Carl Benda in 1898. Nucleus - Robert Brown discovered cell nucleus in 1833. Ribosomes -Discovered by George Palade in 1955.
The plant vacuole was first discovered in 1676 by a Dutch scientist Antonie van Leeuwenhoek. Considered as the 'father of microbiology', he contributed to the development of a number of lenses for microscopes, which allowed him to be the first to observe living cells .
In 1833, Brown observed and described the nucleus, the first organelle. In 1838, the many and various observations were converted into a cell theory by Schleiden, who proposed that all plant tissues were composed of nucleated cells. The following year Schwann applied this cell theory to animal tissues.
Answer- Cell was discovered by an English Botanist, Robert Hooke in 1665. He used self-designed microscope to observe cells in a cork slice back then.
The term was introduced by Rudolf von Kölliker in 1863, originally as a synonym for protoplasm, but later it has come to mean the cell substance and organelles outside the nucleus.