Exam (elaborations)
Biochemistry ACS Final Exam Questions and Answers Fully Solved
- Course
- Institution
Biochemistry ACS Final Exam
[Show more]
Content preview
Biochemistry ACS Final ExamWhat is the D configuration of a sugar in a Fisher projection? - answerchyrol carbon
furthest from the carboxyl group
hydroxyl on right
What is the L configuration of a sugar in a Fisher projection? - answerhydroxyl on left
What is the difference between glycogen and amylopectin? - answerglycogen- has
branches about every 10 residues (more highly branched)
amylopectin- has branches about every 25
What is amylose made up of? - answerglucose
What makes up starch? - answeramylose
amlyopectin
What is a glycosidic bond? - answerlinks two monosaccharides together at points 1 and
4
What is the difference between an alpha(1-4) and beta(1-4) linkage? - answeralpha:
when the oxygen is pointed down in a glycosidic bond
beta: when the oxygen is pointed up in a glycosidic bond
What is the definition of a carbohydrate? - answerall have hydroxyl and carbonyl
functional groups
Difference between aldose and ketose - answeraldose has an aldohyde
ketose has a ketone
What makes up sucrose? - answerfructose and glucose monosaccharides
What makes up lactose? - answerglucose and galactose monosaccharides
What makes up mannose? - answertwo glucose monosaccharides
What are lipids? - answersoluble in other nonpolar solvents (not water)
, What are triglycerides composed of? - answerglycerol and three fatty acids
What is saponification? - answerbase hydrolysis of a triglyceride or other fat
strong base is added
breaks ester linkages to release hydroxyls and form glycerol
What has a higher level of unsaturation -- oils or fats? - answeroils
liquid at room temperature
What is the structure of the plasma membrane? - answerhydrophylic head
hydrophobic fatty acid tails
proteins span the phospholipid bilayer
Why type of amino acid is present in the plasma membrane among the fatty acid tails? -
answerhydrophobic/nonpolar
What is passive transport (simple diffusion)? - answerno energy required
no protein required
move from high concentration to low concentration
water, gases, ethanol (small nonpolar) can pass through
What is facilitated diffusion? - answerrequires protein
no energy required
molecules are two large to go through on their own
What is active transport? - answerenergy is required
moves from low to high concentration
How many carbon atoms do most fatty acids have? - answereven number
What bond holds nucleotides together? - answerphosphodiester bond
What base pairing exists in nucleic acids? How many hydrogen bonds between them? -
answerG--C (3 hydrogen bonds)
A--T (2 hydrogen bonds)
What is the first amino acid always placed in a protein? - answermethionine (Met)
start codon
What 3 things make up a nucleotide? - answernitrogen base
phosphate group
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 julianah420. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81113 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now
