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

Biology I Notes 3.1-3.3 USF

by: Marla Notetaker

Biology I Notes 3.1-3.3 USF BSC 2010

Marketplace > University of South Florida > Biology > BSC 2010 > Biology I Notes 3 1 3 3 USF
Marla Notetaker

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 personal notes for the class on Monday August 29th, if anyone wants to read over them instead of the book feel free..... Yellow for Vocab.... Green for Key Points
Biology I Cellular Processes
Dr. Eric M. Sikorski
Class Notes
ions, Water, tension, Cohesion, Adhesion, polar, bonds, temperature, kinetic energy, Thermal, Energy, vaporization, cooling, solvent, solute, soltion, ice, hydrophobic, hydrophilic
25 ?




Popular in Biology I Cellular Processes

Popular in Biology

This 3 page Class Notes was uploaded by Marla Notetaker on Sunday August 28, 2016. The Class Notes belongs to BSC 2010 at University of South Florida taught by Dr. Eric M. Sikorski in Fall 2016. Since its upload, it has received 62 views. For similar materials see Biology I Cellular Processes in Biology at University of South Florida.


Reviews for Biology I Notes 3.1-3.3 USF


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: 08/28/16
Chapter 3 USF Biology I – Water and Life Yellow: Vocabulary GREE: Key concepts Concept 3.1 – Polar covalent bonds in water molecules result in hydrogen bonding  Polar covalent bonds: electrons of the covalent bonds spend more time closer to Oxygen than            Hydrogen  Polar molecule: overall charge of the molecule is unequally distributed *Negative (­) charge of the negative is attracted to the positive  (+) charge of the hydrogen atom of the other H2O molecule,  forming Hydrogen Bonding* Concept 3.2 – Four emergent properties of water contribute to earth’s suitability  for life I. Cohesion of Water Molecules  Cohesion: hydrogen bonds make to water molecules stick to EACH OTHER     Because of this water can be “transported and dissolved nutrients      against gravity in plants” (p. 45). Meaning the water on top can      “pull” at the water on the bottom and be carried upwards.  Adhesion: “clinging one substance to another” (p. 45) allowing the water to       cling to the walls of the plant and resist the pull of gravity       downwards.  Surface Tension: because cohesion water molecules stick to one another,    and the molecules on the surface also create bonds with    the molecules in the air, creating a very tight film over the    water, which “is measured of how difficult it is to stretch    or break the surface of a liquid. II. Moderation of Temperature by Water  “Water moderates air temperature by absorbing heat from air that is warmer  and releasing the stored heat to air that is cooler” (p. 46) a. Temperature and Heat   Kinetic Energy: movement energy, which all atoms have because they are  constantly moving.  Thermal energy: “random movement of atoms or molecules,” which in part    is related to the object’s volume  Temperature: AVERAGE kinetic energy of molecules in a body of matter,           regardless of their volume. *Example in the book: a coffee maker when it heats up the water  has more temperature because the molecules in the water are  muving much faster, however when compared to a pool that is  much larger the bool is also heating up and has MORE THERMAL  ENERGY because it has a larger mass of water* * Energy only moves from HOT to COLD until = in temp”  Heat: Thermal energy in transfer from one body of matter to another.  Calorie (cal): amount of heat it takes to raise the temperature of 1g of water           by 1 *C …. Also is the amount of heat a 1g of water releases           when it cools 1 *C *0.239 cal = 1 J (joule) ……………. 1 cal = 4.184 J (joules)* b. Water’s High Specific Heat  Specific heat: amount of heat that must be absorbed or lost for 1g of the            substance to change its temperature by 1*C *Can also be perceived as “a measure of how well a substance  resists changing its temperature when it absorbs or releases heat* * The High Specific heat of water is mainly does to hydrogen  bonding because it takes a lot of energy to break those bonds* c. Evaporative Cooling  Vaporization (or evaporation) occurs when the molecules move fast enough  to break the bonds that attach them to other molecules, this can happen even at room temperature.  Heat of Vaporization: quantity of heat a liquid must absorb for 1g of it to be            converted from a liquid to a gas (p. 47)  Evaporative cooling: when hotter molecules evaporate they leave behind          cooler molecules in the surface * This contributes to the ability of water of temperature regulation* III. Floating of Ice on Liquid Water  Water EXPANDS when it turns into ice  When water drops to 0*C (32 F*) the Hydrogen Bonds are stretched at “arm length” because the molecules are moving too slow…ice becomes about  10% less dense than water in liquid form  IV. Water: The Solvent of Life  Solution: the liquid that is a complete homogeneous (not different at sight)     mixture of 2 or more substances  Solvent: dissolving agent (what you use to dissolve)  Solute: the substance that you dissolve  Aqueous solution: when the solute is dissolved into water  Hydration Shell: when a solute dissolves into water the hydrogen positive  (+) charge in the water is attracted to the negative (­) ions of the solute and  they (hydrogen molecules) form a cloud around the – ion to isolate it. a. Hydrophilic and Hydrophobic Substances   Hydrophilic: Substances that LIKE water (from Greek hydro, whater, and           philos, loving) * Some molecules are so large they do not dissolve…. Or cotton  doesn’t either because it’s a cellulose product with some positive  (+) and negative (­) charges to it*  Hydrophobic: repel, hate, don’t get along, with water b. Solute Concentrations in Aqueous Solutions  Molecular Mass: sum of the masses of all the molecules in the compound 23 *1 mole = 6.022 x 10 * ­ the complete explanation for this first     point is on page 50, left column, 2  p.  Molarity: the number of moles of solute per liter of solution  Concept 3.3 ­ Acidic and basic conditions affect living organisms  Sometimes Hydrogen separates from their oxygen and move to ANOTHER  oxygen, creating ions (molecules with unbalanced charges, + or ­)  +  Hydrogen ion (H ): single hydrogen ion with no electrons  Hydroxide ion (OH ): one oxygen with one hydrogen  Hydronium ion (H O ) + 3 THE SECTION ABOUT pH AND BUFFERS I WILL COVER ON THE NEXT SET OF NOTES… I WILL WAIT UNTIL THE TEACHER EXPLAINS IT TO MAKE SURE I DO NOT COMMUNICATE WRONG INFORMATION


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

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Janice Dongeun University of Washington

"I used the money I made selling my notes & study guides to pay for spring break in Olympia, Washington...which was Sweet!"

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.