Kewl Cells!
Erick Boniface
What are cells?!
Cells are tiny organisms that are in every living thing. Your dog, your cat, your neighbor's aunt's father, everyone! These little organisms are the most basic units of life. They are so tiny that they can only be seen with a microscope. In fact, they are so small that there is 37 TRILLION in the human body!
There are two types of cells: Animal and plant cells. Where they come from is pretty obvious. They both has differences in the things they are made out of.
Animal Cell
As you can see it is more rounded from the plant cell and does not have a wall around it.
Plant Cell
As you can see it is very square and has a wall around it to protect it.
I can't seem to get rid of this blank space, so deal with it
Here's a cute puppy
Organelles
What is a cell made of?
Cells are not just cells and they do what they want to do. There isn't a little man in there either. A cell is made of organelles. What are organelles? They are little structures inside the cell that control the intake and outtake of the cell, produces energy, and on that keeps it all together.
Types of Organelles
Nucleus
This is found in both cells (animal and plant) and is basically is the brain of the cell. It directs activity in the cell. Contains DNA.
Cell Membrane
It is found in both and it is like a doorman in the cell. This controls what goes in and out of the cell.
Cytoplasm
This is found in both and is a jelly like substance that keeps the structure of the cell.
Ribosome
These are in both and are like small factories. They make proteins for the cell.
Mitochondria
These are found in both and are like a power plant to a cell. They give the cell energy by cellular respiration.
Vacuole
This is found in both but more useful in the plant cell. This is like a storage warehouse by which it stores all the nutrients off the cell.
Golgi Body
Found in both it is like a packing plant. It sends materials to part of the cell for use.
Lysosome
Found only in animal cells and are like a recycling station. They break down waste in the cell.
Cell Wall
These are only found in plant cells and act like a security guard. It protects the cell from being damaged.
Chloroplast
Found only in plant cells and acts as a solar power plant. They make energy from the sunlight by using photosynthesis and use it in the cell.
Cell Theory
In biology, the cell theory is the 3 main ideas of cells. They explain and show what they are. These 3 ideas took many scientists years and year to come with a conclusion with.
They are:
All living things are made of cells
New cells come from preexisting cells
Cells are the most basic unit of life
Body Organization
As noted before, cells are tiny. For example, that Pomeranian over there is an organism. The cell make ups tissues, muscular and nervous tissue can combine to make a heart. Tissues make organs which are part of a big system, such as the respiratory system or the nervous system. When added all together it makes an organism, such as a cute dog!
Types of cells
OR
How do cells make energy?
CELLULAR RESPIRATION, OF COURSE!
Animals take in food and oxygen and makes energy with a by product of carbon dioxide. Sound a little familiar?
It is the same equation as photosynthesis but flipped around. Plants take in carbon dioxide and energy from the sun to make food and a by product of oxygen.