FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 28: Carbohydrates

Show Answer

Share

---

All types

Filters

Study FlashcardsPractice ExamLearn

Question 21

Multiple Choice

Review LaterAdd Note

Review Later

What is the composition of maltose?

A) Two glucose units with a a-1,4'-glycoside bond
B) One glucose and one fructose unit with a a-glycosidic bond to the 2'carbon of a fructofuranose ring
C) One galactose and one glucose unit with a b-1,4'-glycoside bond
D) Repeating unit of glucose units joined in a b-1,4'-glycosidic linkage

Correct Answer

verified

Show Answer

Question 22

Multiple Choice

Review LaterAdd Note

Review Later

Which of the following sugars can be classified as a ketotetrose?

A) A
B) B
C) C
D) D

Correct Answer

verified

Show Answer

Question 23

Multiple Choice

Review LaterAdd Note

What is the composition of sucrose?

Does a monosaccharide prefer to exist in the open-chain or closed-ring form?

What is the composition of lactose?

Which of the following sugars can be classified as a ketohexose?

Upon hydrolysis of amylose, what sugar is formed?

Which is the correct Haworth projection for the aanomer of allose?

What are the products of the following reaction?

What is the correct chair form for the banomer of D-glucose?

Which of the following pairs of carbohydrates will afford the same product from a Wohl degradation?

Which of the following sugars can be classified as an aldohexose?

How many possible stereoisomers are there of the following heptose?

Upon hydrolysis of amylopectin, what sugar is formed?

Upon hydrolysis of cellulose, what sugar is formed?

After a series of Kiliani-Fischer syntheses on D-glyceraldehyde, an unknown sugar was isolated from the reaction mixture.The following experimental data was obtained.What is the structure of this unknown sugar? Data: - Molecular formula: C₆H₁₂O₆ - Reacts with phenylhydrazine to give an osazone, mp 178°C.- Reacts with HNO₃ to give an optically active aldaric acid.- Wohl degradation followed by HNO₃ oxidation gives an optically inactive Aldaric acid.- Two Wohl degradations followed by HNO₃ oxidation give a meso-tartaric acid.

From the sugars shown below, which one is a non-reducing sugar?

The following reaction is an example of a base-catalyzed epimerization reaction in which a ketose is converted to a pair of aldoses.What are the products from this reaction?