Search for notes by fellow students, in your own course and all over the country.
Browse our notes for titles which look like what you need, you can preview any of the notes via a sample of the contents. After you're happy these are the notes you're after simply pop them into your shopping cart.
Title: How do cells maintain homeostasis?
Description: Essential Question: How do cells maintain homeostasis? Focus Question: How do cells use signal molecules? Best for Middle school and high school students
Description: Essential Question: How do cells maintain homeostasis? Focus Question: How do cells use signal molecules? Best for Middle school and high school students
Document Preview
Extracts from the notes are below, to see the PDF you'll receive please use the links above
How do cells maintain homeostasis?
Essential Question: How do cells maintain homeostasis?
Focus Question: How do cells use signal molecules?
Background Questions to consider
Describe how cells communicate with one another
When does a cell need to use endocytosis? Exocytosis?
Sending Signals
Cells communicate and coordinate activity by sending chemical signals that carry information to other
cells
...
Typically, target cells have specific proteins that recognize and respond to the signal
...
Short-distance signals - may act locally, a few cells away from the originating cell
...
Hormones are signal molecules that are made in one part of the body
...
Nerve cells also signal information to distant locations in the body, but their signals are not widely
distributed
...
Receiving Signals
Cells respond to some signals but not to others
...
A receptor protein binds (catches) specific substances; such as signal molecules
...
Each group will share
one of their examples
...
o Transport proteins may open or close in response to a signal
...
A receptor protein binds only to the signals that match the specific shape of its binding site
...
Review
What are the 3 different ways cells can communicate with one another?
3
Title: How do cells maintain homeostasis?
Description: Essential Question: How do cells maintain homeostasis? Focus Question: How do cells use signal molecules? Best for Middle school and high school students
Description: Essential Question: How do cells maintain homeostasis? Focus Question: How do cells use signal molecules? Best for Middle school and high school students