BIOCHEM MIDTERM’S EXAMINATION QUESTIONS AND ANSWERS. MIDTERM EXAM REVISION QUESTIONS AND CORRECT ANSWERS (GRADED A+) (100% GUARANTEE) (2024 UPDATE)
2 views 0 purchase
Course
Biochem
Institution
Biochem
Intermediate in the Oxidative Decarboxylation of Isocitrate to Alphaketoglutarate - ANSWEROxalosuccinate
The reactive centers of monosaccharides - ANSWER- Carbonyl and Hydroxyl Groups
Relatively low molecular weight polymers of monosaccharides that are covalently bonded with
each other through g...
Intermediate in the Oxidative Decarboxylation of Isocitrate to Alphaketoglutarate - ANSWER-
Oxalosuccinate
The reactive centers of monosaccharides - ANSWER- Carbonyl and Hydroxyl Groups
Relatively low molecular weight polymers of monosaccharides that are covalently bonded with
each other through glycosidic linkages. - ANSWER- Oligosaccharides, most commonly
occuring in food if it has glucose, fructose and galactose
Majority of carbohydrates found in nature, high molecular weight polymers of monosaccharides -
ANSWER- Polysaccharides
Primary energy source monosaccharide - ANSWER- Glucose
A polymer of N-acetylglucosamine and is a major structural component of exoskeletons -
ANSWER- Chitin
Side chains of glycoproteins serves as signals for intracellular sorting of protein - ANSWER-
Oligosaccharides
A general test for carbohydrates that gives a purple ring as positive result. - ANSWER- Molisch
Test
, What does Molisch reagent do - ANSWER- dehydrates pentoses to form furfural and
dehydrates hexoses to form 5-hydroxymethyl furfural. It then reacts with a-napthol to produce
purple product
Components of Molisch Reagent - ANSWER- a-Napthol (5g) and Ethyl Alcohol (95%) for 100
ml
Reacts with the Molisch Reagent - ANSWER- H2SO4 (Sulfuric Acid)
Any sugar that, in a solution has an aldehyde or ketone group - ANSWER- Reducing Sugars
Disaccharides and Polysaccharides have glycosidic linkages and hence ___ - ANSWER- No
reducing group
Non reducing sugars - ANSWER- Sucrose, Glycogen, Starch, Dextrin
Most commonly used tests for detection of reducing sugars - ANSWER- Fehling's Test,
Benedict's Test, and Barfoed's Test
Reducing and Nonreducing properties of carbohydrates - ANSWER- Aldoses (polyhydroxy
aldehydes)
Ketoses (polyhydroxy ketones)
Hemiacetal functional group (potential aldehydes)
Used to detect reducing sugars. This reagent is an alkaline solution, containing a copper tartrate
complex with Cu2+ ions. - ANSWER- Fehling's Reagent
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 pharismusyoka99. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.49. You're not tied to anything after your purchase.
