Copy_of_Our_Secret_Universe_The_Hidden_Life_of_the_Cell_(Video_Worksheet)_(ANSWER_KEY) University of Waterloo BIOL 447
Our Secret Universe: The Hidden Life of the Cell
Video Worksheet
ANSWER KEY
Introduction to the Cell:
1. What macromolecule is the "worker" of the cell? Give an example of a function it provides.
Proteins are the “workers” of the cell. Functions include building �
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Copy_of_Our_Secret_Universe_The_Hidden_Life_of_the_Cell_(Video_Worksheet)_(ANSWER_KEY) University of Waterloo BIOL 447
Our Secret Universe: The Hidden Life of the Cell
Video Worksheet
ANSWER KEY
Introduction to the Cell:
1. What macromolecule is the "worker" of the cell? Give an example of a function it provides.
Proteins are the “workers” of the cell. Functions include building “cellular machinery”, building internal
cell structures, and transporting materials around the cell.
2. For each of the structures of the cell given in this part of the documentary, explain its purpose.
Structure/Organelle Function
Mitochondria Recharging the chemical batteries of the cell.
Nucleus The vault containing the DNA that codes for proteins.
Ribosomes Make proteins from the genetic material.
Proteasome Break down used and faulty proteins to recycle their building blocks.
Cell Infection:
1. What exactly do white blood cells “inspect” to be sure that a cell belongs and is not infected?
The white blood cells inspect the receptor proteins on the surface of the cell membrane.
2. What is the body’s first line of defense against pathogens?
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