New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

Physiology Week 5

by: Katharyn Taylor

Physiology Week 5 Bio 230

Katharyn Taylor

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

These are my notes from class during week 5. They are only one day of notes because we had an exam this week.
Human Physiology
Mr. Mark Alston
Class Notes
25 ?




Popular in Human Physiology

Popular in Biology

This 2 page Class Notes was uploaded by Katharyn Taylor on Tuesday September 20, 2016. The Class Notes belongs to Bio 230 at University of Tennessee - Knoxville taught by Mr. Mark Alston in Fall 2016. Since its upload, it has received 12 views. For similar materials see Human Physiology in Biology at University of Tennessee - Knoxville.


Reviews for Physiology Week 5


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 09/20/16
Tuesday, September 13, 2016 Physiology Week 5 Diffusion/Osmosis - Diffusion is when solutes move down their concentration gradient - Osmosis is when water (the solvent) moves down its concentration gradient. Water is polar, so it doesn't move through the phospholipid bilayer easily. It can move through ion channels and aquaporins (specific channel for water). These pores can be manipulated to control osmosis • remember that ionic compounds dissociate, so a 1M solution of NaCl has a lower water concentration than a 1M solution of glucose Therefore, salts are measured in osmols, mols of solute particles • - Hypertonic solutions force water to flow out of the cell because there is a higher solute concentration outside the cell, and the cell shrivels - Hypotonic solutions cause water to flow into the cell because there is a high solute concentration inside the cell, and the cell swells and potentially bursts - Isotonic solutions have the same solute concentration as the inside of the cell, so the net water movement is even and the cell is not pressured in either direction • Tonicity is only relevant with non-penetrating solutes because the water is what moves. If the solute could penetrate the membrane, the solute would move instead of the water - Hyper-osmotic, Hypo-osmotic, and Iso-osmotic have to do with total solute concentration, both penetrating and non-penetrating - Endocrine system secretes hormones to be circulated throughout the body - Paracrine: hormones that are released to affect surrounding cells’s behavior. Neurotransmitters are paracrine hormones that came from a neuron - Autocrine: hormones that are released to affect the cell’s own behavior - Agonists bind to receptors and trigger a cell response - Antagonists bind to receptors and do not cause the cell to change its behavior. These are commonly referred to as blockers 1 Tuesday, September 13, 2016 - Signal amplification: a small amount of first messengers can end up making an inflated amount of products 2


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

Kyle Maynard Purdue

"When you're taking detailed notes and trying to help everyone else out in the class, it really helps you learn and understand the I made $280 on my first study guide!"

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"


"Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.