Question

explain the history of discovery of cell

Answer 1

Answer:

➡️The cell theory, or cell doctrine, states that all organisms are composed of similar units of organization, called cells. The concept was formally articulated in 1839 by Schleiden & Schwann and has remained as the foundation of modern biology. The idea predates other great paradigms of biology including Darwin’s theory of evolution (1859), Mendel’s laws of inheritance (1865), and the establishment of comparative biochemistry (1940).

First Cells Seen in Cork

While the invention of the telescope made the Cosmos accessible to human observation, the microsope opened up smaller worlds, showing what living forms were composed of. The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope. Hooke’s description of these cells was published in Micrographia. The cell walls observed by Hooke gave no indication of the nucleus and other organelles found in most living cells. The first man to witness a live cell under a microscope was Anton van Leeuwenhoek, who in 1674 described the algae Spirogyra. Van Leeuwenhoek probably also saw bacteria.

Answer 2

Answer:

The term “cells” was first coined in 1665 by British scientist Robert Hooke. He was the first to investigate living things under a microscope and saw honeycomb-like structures when he looked at a thin slice of cork. These were referred to by Robert Hooke as cells.

Explanation:

• All living things are built on cells. It wasn't until the 1660s that this truth was discovered and became well understood. Cells were discovered by scientists by names of Robert Hooke and Anton Van Leeuwenhoek.

• Robert Hooke chose to examine a piece of cork using the newly developed compound microscope. He observed that the cork was composed of tiny buildings that resembled individual rooms. He referred to these spaces as cells. The cells Hooke was witnessing were also non-functional since the cork he was observing was dead.

• While this was going on, Anton Van Leeuwenhoek made the decision to examine living things like blood and saliva under a microscope. He saw minute fragments within these things. He called them "animalcules" because they had an animal-like appearance.

• As a result, Anton von Leeuwenhoek is credited with discovering the live cell, whereas Robert Hooke is credited with discovering the cell.

#SPJ2