Exam (elaborations)
BS 161 Exam 2 Exam Prep Questions And Answers ()
- Course
- Institution
BS 161 Exam 2 Exam Prep Questions And Answers ()
[Show more]
Seller
Follow
Content preview
BS 161 Exam 2 Exam Prep Questions And Answers (202472025)Kinetic Energy - ✔✔Energy in motion
Potential Energy - ✔✔Stored energy
Oxidation - ✔✔When an atom/molecule loses an electron, lower energy levels
Reduction - ✔✔When an atom/molecule gains an electron, higher energy levels
Thermodynamics - ✔✔Branch of chemistry concerned with chemistry changes; all cells
governed by these laws
First Law of Thermodynamics - ✔✔Energy cannot be created or destroyed, can only change
forms
Second Law of Thermodynamics - ✔✔Entropy is continuously increasing, disorder is more
likely than order
Entropy - ✔✔The disorder in the universe
Free Energy - ✔✔The amount of energy available to break/form other bonds; the energy
available to do work in any system
Endergonic Reactions - ✔✔Products contain more free energy than their reactants; do not
proceed spontaneously due to the need for an input of energy. +DG
Exergonic Reactions - ✔✔Reactants contain more free energy than their products; proceed
spontaneously due to no need for an input of energy. -DG
ATP Potential Energy - ✔✔Phosphate groups of ATP are highly negatively charged and repel
each other. Through electrostatic repulsion, covalent bonds are formed, bringing the phosphate
, groups together. Bringing the negatively charged groups creates a high degree of potential
energy. When covalent bonds are broken, much energy is released.
Catalysts - ✔✔Increase the rate of chemical reactions by influencing chemical bonds in a way
that lowers activation energy
Enzymes - ✔✔Lower activation energy by binding to a substrate and holding it in a way that
lowers its activation energy; both must be in the correct orientation. Require very little, and are
reusable
Problems with Enzymes - ✔✔Can be impacted by inhibitors which decrease its activity
Active Sites - ✔✔Where the substrates bind to the enzymes to form a substrate-enzyme
complex, must be a perfect fit with specific enzymes for the catalysis to work
Substrate Binding SItes - ✔✔Very broad and can have a wide variety of proteins bind to it to
make the catalysis work
Non Protein Enzymes - ✔✔RNA molecules can also be use to catalyze reactions; found in
reactions that involve RNA
Inhibitor - ✔✔Substance that binds to an enzyme to decrease its activity
Competitive Inhibitors - ✔✔Compete with the substrate for the same active site, preventing the
substrate from binding
Non Competitive Inhibitors - ✔✔Bind to enzyme location other than the active site, changing its
shape
Enzyme pH - ✔✔They prefer a level of 5-9, being most efficient at about 7; a reading outside
this range could impact the binding to the substrate, and the ionization of the substrate.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller manassehtaliban95. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79223 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now