what does a whale, a rose, bacteria, a ladybug and humanity all have in common?
We are all made up of Cells.
What are cells and what do they do?
the basic unit of structure and function in all living things. Cells form the parts of an organism and carry out its functions.
what functions do cells perform?
things such as obtaining energy, bringing in food and water,
true or false : a single cell has the same needs of an entire organism?
true. it needs biological functions, such as obtaining energy, bringing in water and nutrients, and getting rid of waste.
True or False ; most organisms only have one type of cell throughout its entire body.
False. Most organisms have different cells that work together to help the body stay alive, grow, and work together.
What does cells in the human bodies circulatory system do?
The cells move the humans blood around the entire body. This blood provides you with new, fresh oxygen and removes the waste product carbon dioxide.
When did scientists figure out living organisms are made of cells?
1600s
What invention made the discovery of cells possible?
The microscope, which is an instrument that makes small objects larger and easier to look at.
Which scientist built his own microscope in the mid-1600s to learn about nature?
English scientists Robert Hooke. He had also made up the name for cells, since the empty spaces in tree bark looked like tiny rooms.
Who was the first person to observe living cells under a microscope in 1674? What did he see?
Anton Van Leeuwenhoek. He saw many tiny organisms hopping around in a drop of pond water. He named them ‘animalcules’, or little animals.
What scientist came to the conclusion all plants are made of plant cells in 1838?
Matthias Schleiden, a scientist working with plants.
What scientist came to the conclusion that all animals are made of animal cells in 1839?
Theodor Schwann.
What is cell theorys three rules?
All living things are made of cells.
Cells are the basic unit of structure and function in living things.
All new cells are produced from existing cells.
True or false ; cell theory applies to every living thing, big or small?
True.
How do light microscopes work?
Light microscopes focus light through lenses to produce a magnified image.
How do electron microscopes work?
Electron microscopes use beams of electrons that scan the surface of a specimen.
