Quiz 1 Part 3 Flashcards
Depolarization
There is less negative charge inside the cell and more positive inside the cell
Repolarization
The resetting of the electrochemical gradients of the cell to prepare for a new action potential
Why is every cell polarized?
It has a negative charge
Phosphorylation
Temporarily energizing a molecule to do some work
What are two types of vesicular transport?
Endocytosis
Exocytosis
Exocytosis
Taking something out of the cell from the inside
Endocytosis
Materials move into the cell
Phagocytosis
To engulf a solid substance
Pinocytosis
To engulf liquids
Vesicular Transport
Transport of large particles and macromolecules across plasma membranes
What are three types of Endocytosis?
Phagocytosis
Pinocytosis
Receptor-Mediated
Receptor-Mediated
The cell acquires bulk quantities of specific substances
How does DNA (triplets) copy?
By semi-conservative replication. The DNA separates called the replication bubble
Transcription
The change from DNA to RNA language
What are the three types of RNA?
mRNA (codons)
rRNA
tRNA (anti-codons)
