Exam (elaborations)
WGU C785 BIOCHEMISTRY FINAL EXAM AND OA QUESTIONS AND ANSWERS 2022/2023 (LATEST UPDATE)/GRADED A+
- Course
- Institution
WGU C785 BIOCHEMISTRY FINAL EXAM AND OA QUESTIONS AND ANSWERS 2022/2023 (LATEST UPDATE)/GRADED A+
[Show more]
Seller
Follow
MENTALGIANT
Reviews received
Content preview
WGU C785 BIOCHEMISTRY FINAL EXAM AND OAQUESTIONS AND ANSWERS 2022/2023 (LATEST
UPDATE)/GRADED A+
What is the basic structure of an amino acid? What do they look like? (correct answers)amino group
(NH2 or NH3), carboxyl group (COO or COOH), alpha carbon (C), and variable group
How do you identify the 3 different types of side chains: non-polar/hydrophobic, polar, and charged?
(correct answers)Non-polar/hydrophobic - end with CH or "can't have" water. Polar - end with OH, SH,
or NH. Charged - end with a charge
what kinds of bonds do each of the 3 different types of side chains make? (correct answers)ionic,
hydrophobic/non-polar, charged
What are the 4 levels of protein structure? (correct answers)Primary - linear structure, Secondary -
Folded into helix or pleated sheet caused by hydrogen bonding, tertiary - 3D structure caused by side
chain interactions, quaternary - 1+ amino acid chains combine = multiple subunits MUST have 1+
subunit
What enviormental change breaks each type of bond? (correct answers)hydrophobic - temperature
change, ionic - salt or decreased pH, hydrogen - temperature, change in pH, disulfide - reducing agents
what type of amino acid side chain leads to protein aggregration? (correct answers)hydrophobic bonds
how do environmental changes affect protein folding? (correct answers)Extreme temp can cause
hydrogen bonds to break apart = malformation of protein folding
how do mutations affect protein structure? (correct answers)Can cause structure to change. Protein
loses form = loses function. May form a different protein.
,What is an electron? (correct answers)Negatively charged atom on outer ring for bonding
What is energy: (correct answers)Power derived fro chemical interaction
what are covalent bonds? (correct answers)chemical bond, atoms share 1+ valence electrons
what is an ionic bond? (correct answers)bond between positive and negative
what is a hydrogen bond? (correct answers)weak bond between positive and negative
with an amino? (correct answers)piece of amino acid, NH2 or NH3
what is a carboyxl? (correct answers)piece of amino acid, COO or COOH
What is hydrophobic? (correct answers)Doesn't like water, end with CH
what is hydrophilic? (correct answers)Water Lovering, end with OH, NH, or SH
what is disulfide bond? (correct answers)strongest bond between reduction agents, formed between
SH's.
what are zwitterions? (correct answers)amino with positive and negative charges = overall charge of
zero
what is a polypeptide (correct answers)polymer of amino acids
, What is dehydration synthesis? (correct answers)Process of forming peptide bonds
what is hydrolysis? (correct answers)adding water to destroy bonds
what is an alpha helix? (correct answers)twisted secondary structure, formed by hydrogen bonds
what is a beta sheet? (correct answers)folded second structure shape, formed by hydrogen bonds
what is denaturation? (correct answers)loss of shape duet o interruption of chemical bonds; occurs via
extreme salt, temp, pH
what is aggregation? (correct answers)clumping of inner or outer cellular proteins caused by misfolded
proteins leading to diseases such as Alzheimers, ALS, Parkinson's
how do enzymes catalyze reactions? (correct answers)bind with substrates to decrease activation
energy required and decrease reaction rate
how do enzymes affect reaction rate and activation energy? (correct answers)decrease activation
energy and decrease reaction rate
what are the 4 steps of the enzymatic cycle? (correct answers)enzyme recognizes substrate, substrate
attracts the enzyme; enzyme-substrate complex is formed; enzyme-product complex formed; product is
released, enzyme recycled
how do environmental changes affect enzymes? (correct answers)High heat, pH change, high salt
concentration, and reducing agents can cause an enzyme to lose its form/lose function
what is a competitive inhibitor? (correct answers)Mimics substrate and takes its place on the active
binding site
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 MENTALGIANT. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77016 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now