4.1 Cell Communication
Cells communicate by sending and receiving chemical messengers. Cells can communicate over various distances
To Think About:
How do cells communicate with other cells over short distances? How do cells communicate with other cells over long distances? How is the process of distance communication different from the process of communicating during cell-cell contact?
Watch: AP Daily Video Cell Communication
Answer the Following Questions:
This video talks about three types of cell communication: direct-contact, short distance, and long distance communication. Make sure you can explain how all three methods of cell communication work, and an example of each one.
- When unicellular organisms are in direct contact with each other, they may live together in _______________ and share _______________
- Adjacent cells may send signals to each other through modifications of their cell membranes or cell walls. Examples of this in plants are ____________________, examples of this in animals are ____________ ____________________
- To communicate or short or long distances, cells use _________ ____________
- These chemical signals are received by cells called ___________ cells.
- Cells communicate over short distances by sending out signals called _______ _____________. This is often used in cells of the __________ type
- Long distance cell communication is often used in cells of __________ types.
- B-cell activation requires _____ to _____ contact. In B-cell an anitgen on one cell binds to a _______________ on a B-cell.
- Neurotransmitters communicate using _______ ___________________
- In the practice question at the end of the video, which mechanism best explains how a hormone can reach target cells far away in the body?
Supplementary Resources:
- Bozeman Science: Mr. Andersen’s “Cell Communication” video
University of Utah: Learn.Genetics - The Inside Story of Cell Communication
University of Utah: Learn.Genetics - How Cells Communicate During Fight or Flight
Nobel Prize in Physiology and Medicine, 1923: Fredrick Grant Banting and John James Rickard MacLeod, “for the discovery of insulin.”
