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Cells are like people, just very very small. They are 

made of lots of different parts with different 

functions, but each part is just as important as 

another.

These parts are called "Organelles." These are like 

the organs in a person.

The nucleus contains DNA and other important 

things like ribosomes and proteins. This is the 

control center of the cell.

The nucleus is like the brain of a person. The brain 

controls things like growth and function of the 

parts of the body.

The nucleolus of a cell is found inside the nucleus, 

and makes ribosomes. This is where DNA is held 

inside the nucleus.

The nucleolus of a cell is like of the part of the 

brain that stores personal identity.

Chromatin, also found in the nucleus, protects DNA 

and is in charge of DNA replication.

Chromatin is like the millions of neurons that make 

up the brain it contains the information about 

identity and other functions of the body.

Rough ER (Endoplasmic Reticulum) preforms the 

synthesis of proteins and is responsible for 

biochemical compounds within a cell. Smooth ER is 

the same thing but it does not have ribosomes on it 

so it looks smooth.

The liver is like the smooth ER because the liver 

cleans out the waste given off by the digestion of 

food. Blood vessels are like the rough ER because 

they transport needed nutrients to the other 

parts of the body.

Golgi bodies transport and store the proteins and 

lipids made in the ER.

Intestines are like the Golgi bodies because they 

transport the nutrients that were extracted from 

the food to where they can be distributed 

throughout the body. 

Vesicles are little storage vessels that transport 

things in, out, and around a cell.

Vesicles are sort of like blood, in that it 

transports nutrients and other things like 

hormones throughout the body.

Ribosomes are tiny dot-like structures that are 

responsible for protein synthesis.

Ribosomes are like bone marrow, in that bone 

marrow creates blood like ribosomes create 

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