Video Notes - Cell Theory

van Leewenhoek wrote about his discoveries to a scientist in England named Robert ? , who worked in many scientific fields including chemistry, physics and ?.

Hooke, biology

The Cell ? is an important part of ? still today.

Theory, Biology

Unicellular ? were discovered by van Leeuwenhoek while he was using his microscope to view his own ? scrapings.

bacteria, dental

Schleiden believed in ? cell formation. which means that he believed that cells ? crystallized into existence, and Schwann did not.

free, spontaneously

The second part of the Cell Theory states that, "The cell is the basic unit of ? and ? in organisms".

structure, organization

There are ? parts to the Cell Theory, the first part states that, "All organisms are composed of one or more ?.

3, cells

Another German scientist, working with a microscope, named Thoedore Schwann, was a zoologist because he studied ? cells under his microscope, discovered and got a ? cell named after him.

animal, nerve

van Leeuwenhoek thought that the tiny organisms he observed through his microscope looked like tiny ?, therefore, he named them ?.

animals, animalcules.

Due to all of his extensive work with animal cells, Schwann concludes that, "All ? are composed of ?."

animals, cells

In the 1800's, a German scientist by the name Matthias Schleiden, who was a ? that studied hundreds of species of ? under his microscope, contributed to our knowledge about organisms in a major way.

botanist, plants

Schwann reached out to other scientists working in the same field and Matthias Schleiden answered him, therefore, they began to work on the beginnings of the ? ? together.

cell, theory

The third part of the Cell Theory states that, "All ? come from ? cells".

cells, pre-existing

As Hooke was observing the cork under the microscope, the little ? he saw reminded him of the rooms monks slept in in their monastaries, called ?.

chambers, cells

Schleiden and Schwann ? about the last part of the Cell Theory which states, "All ? come from ? cells."

disagreed, cell, pre-existing

It is important to remember that not all scientific discoveries come about in the same ? what we learn through science does not always come out of a scientific ?.

lab, lab

The Dutch scientist, Anton van Leeuwenhoek, built his own ? that was about the size of a tiny ? lens.

microscope, sunglasses

The first compound ? and the first ? is thought to have been invented by a spectacle(eyeglass) maker named Zacharias Jansen in the early 1600's.

microscope, telescope

Other scientists began building their own compound ? and by the mid to late 1600's most ? and naturalists are buying and using microscopes to help them with their work.

microscopes, scientists

Robert Hooke got into a scientific battle with the very famous scientist, Sir Isaac Newton, who Hooke believed used Hooke's ? research to get the credit for figuring out that the planets move around the sun due to ?.

physics, gravity

Based on all of his extensive research with plants, Schleiden concluded that, "All ? are composed of ?."

plants, cells

Schwann also invented the ? which allowed ? to breathe oxyzen while in smoky fires.

re-breathers, firefighters

It is believed that Virchow stole ? from a Jewish scientist named Robert Remak, that actually proved that ? cam only come from other cells.

research cells

Many believe that Sir Isaac Newton caused all of Hookes ? to ? after Hooke's death.

research, be misplaced

Another German scientist, named Rudolf Virchow, provided ? that ? that cells did come from other cells.

research, proved

Robert Hooke came up with the term, ?, as he was observing a piece of ? under a microscope.

the cell, cork