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

Lecture Notes

by: Haleigh Siple

Lecture Notes BIO 120

Haleigh Siple
GPA 3.3
General Biology

Almost Ready


These notes were just uploaded, and will be ready to view shortly.

Purchase these notes here, or revisit this page.

Either way, we'll remind you when they're ready :)

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

Lecture notes for Chapters 8 and 9 from Oct. 12
General Biology
Class Notes
25 ?




Popular in General Biology

Popular in Biological Sciences

This 4 page Class Notes was uploaded by Haleigh Siple on Monday October 19, 2015. The Class Notes belongs to BIO 120 at Grand Valley State University taught by Rybczynski in Summer 2015. Since its upload, it has received 35 views. For similar materials see General Biology in Biological Sciences at Grand Valley State University.

Similar to BIO 120 at GVSU

Popular in Biological Sciences


Reviews for Lecture Notes


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: 10/19/15
Bio 120 Lecture Notes Oct 12 Chapter 8 Lecture Notes Metabolism and Mead Mead is a medieval drink composed of honey yeast water and some nutrients Yeast a fungus uses enzymes to break down sugars Yeast are Eukaryotes with cell walls Glycolysis The breaking down of glucose Metabolism sum of organisms reactions Energy from Catabolism breaking apart fuels Anabolism building up 1St Law of Thermodynamics Energy cannot be created or destroyed It can only change forms 2nd Law of Thermodynamics In a closed system disorder tends to increase Entrophy disorder in the universe order can increase locally with energy Spontaneous Reactions occur without energy increases disorder in this case spontaneous is not synonymous with fast Energy enters a system as light and leaves as heat Free Energy energy available for work delta G The free energy change of a reaction tells us whether the reaction can occur spontaneously Spontaneous Reactions have negative negative energy 9 decrease in free energy Less free Energy more stable less reactions Exergonic reactions can occur spontaneously Net release free energy energy is given off Endergonic reaction require energy positive change in free energy Reversible reactions are exergonic one way and endergonic the other way Cellular catabolic path ways respiration release energy in a series of reactions Open system ATP Powers cellular work by joining exergonic reactions and endergonic reactions 3 Types of Work chemical Transport and Mechanical ADP 9 ATP Enzymes Speed up Metabolic reactions by lowering energy barriers Activation Energy amount of energy needed to break bond Bio 120 Lecture Notes Oct 12 Ea energy needed to start a reaction 9 products are more stable than reactants Enzymes increase rate of reaction lowers activation energy Catalysis in Enzyme s active site Induced Fit enzyme grabs ahold of the substrate Active Site stressed the bonds makes the reaction go Enzymes can denature pH and Temp 354 degrees Celsius is optimal and a pH between 68 is optimal except in the stomach where the optimal pH is 2 Enzyme Inhibitors stop enzymes from working by binding to the active site andor elsewhere on the enzyme Competitive Inhibitors compete for the active site Noncompetitive Inhibitors change the shape of the enzyme s active site Regulation of enzymes helps control metabolism Feedback Inhibition product of a reaction shuts down metabolic pathway turns off enzyme Chapter 9 Fermentation and Food Glucose 9 Pyruvate 9 Ethanol Alcohol Catabolic Pathway yields energy by oxidizing organic fuels Fermentation partial degradation of sugar without oxygen Respiration process of consuming organic fuels with oxygen this is an endergonic reaction Redox Reactions Oxidation and Reduction provides energy used to make ATP The Principle of Redox Reduced a molecule s positive charge is reduced Reduction can be partial shift of electrons to a more Electromagnetic molecule Oxidation CH4 releases energy for work Decrease in potential energy Free energy is 0 Bio 120 Lecture Notes Oct 12 Cellular Respiration glucose is oxidized and oxygen is reduced 9 stored energy is used to make ATP negative free energy Stepwise Energy Harvest via NAD Enzyme catalyzed Glucose loses elecrons NAD electron receptor oxidizing agent Sugar Spliting occurs in cytosol Glucose 6 carbons 9 pyruvate 3 carbons 9 2 NAD and 2NADH electron carrier Know gure 98 pg 168 Energy Investment Phase ATP 9 ADP Converted to Isomer ATP 9 ADP key regulation point Sugar Splitting Equilibrium pulled toward G3P U PP Pi Phosphofructokinase inhibits ATP Energy Payoff Phase 6 Oxidation NAD 9 NADH Exergonic 7 Substrate level phosphorylation ADP 9 ATP 8 Relocation of Phosphate group 9 Loss of H20 10 Substrate level phosphorylation ADP 9 ATP Glycolysis all glucose carbons accounted for in pyruvate Occurs both with and without oxygen Oxygen present 9 pyruvate and NADH move to citric acid cycle Fermentation allows ATP manufacture without 02 Fermentation regenerates NAD Types of Fermentation 1 Alcohol brewing baking Acetaldehyde final electron receptor is reduced by NADH final product is Ethanol 2 Lactic Acid Fermentation cheese yogurts Happens in muscle cells when overworked Pyruvate 9 LactaseLactic Acid Greenland Sharks contain Urea helps shark keep osmotic balance bacteria break it down Bio 120 Lecture Notes Oct 12


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!"

Jennifer McGill UCSF Med School

"Selling my MCAT study guides and notes has been a great source of side revenue while I'm in school. Some months I'm making over $500! Plus, it makes me happy knowing that I'm helping future med students with their MCAT."

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."


"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.