Exam (elaborations)
MCAT Biochemistry Chapter 5: Lipids Exam 2024/2025 Questions With Completed & Verified Solutions.
- Course
- Institution
MCAT Biochemistry Chapter 5: Lipids Exam 2024/2025 Questions With Completed & Verified Solutions.
[Show more]
Content preview
MCAT Biochemistry Chapter 5: LipidsStructural Lipids - ANS Phospholipids, Glycerophospholipids, Sphingolipids, Waxes; The fatty
acid component plays the largest structural part, while the head groups play functional roles.
Phospholipid - ANS An alcohol + phosphate form the polar head group, and they are attached to
a fatty acid tail. Include ester and phosphodiester bonds.
Glycerophospholipid - ANS A specific type of phospholipid where the back bone is a glycerol.
Named via head group.
i.e. phosphatidylcholine - choline is the head group.
i.e. phosphatidylethanolamine - ethanolamine is the head group.
Sphingolipids - ANS Lipids with a sphingosine backbone*. Also long chain, nonpolar fatty acid
tails and polar head groups.
* not necessarily always sphingosine, can be sphingosine related
Ceramide - ANS the simplest sphingolipid; H = head group.
Sphingomyelin - ANS sphingophospholipids; phosphatidylcholine or phosphatidyl ethanolamine
as the head group.Involved in Myelin synthesis.
Glycosphingolipids - ANS sphingolipids with head groups compose of sugars bound via
glycosidic linkages. Include Cerebrosides (1 sugar molecule) and Globosides (multiple sugar
molecules)
Gangliosides - ANS most complex sphingolipids; glycolipids that have polar head groups w/
oligosaccharides involving >1 N-acetyl neuraminic acid (NANA/sialic acid) molecules at the
terminus, & a negative charge.
Play a role in cell interaction, recognition and signal transduction.
Waxes - ANS esters of long chain fatty acids with long chain alcohols. Biologically, they are
protection for plants and animals, i.e. preventing excessive evaporation and as a lubricant.
Signalling Lipids - ANS Lipids can also be signal molecules: coenzymes (ETC), hormones,
intracellular messengers.
Include: Terpenes, Prostaglandins, Fat Soluble Vitamins, Steroids.
Terpenes - ANS - lipids that are built from isoprene (C5H8) moieties.
- mainly secreted by plants and insects; they smell.
-named based on how many moieties present.
Picture = isoprene 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 EFT, 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 this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller phylliswambui. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77764 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 14 years now
