Carbohydrate Chemistry and Classification Practice Questions

Question 1

What is the optimal time for alginate impression material gel formation at 20°C?

Accepted Answer

1-2 min.

Answer

6-8 mins.

Answer

15-16 mins.

Answer

3-4 mins.

Question 2

History of dislike for sweet food items is typically present in:

Accepted Answer

Hereditary fructose intolerance

Answer

Glycogen storage disease

Answer

Diabetes mellitus

Answer

Galactosemia

Question 3

Which carbon of glucose is oxidized to form glucuronic acid?

Accepted Answer

Oxidation of the terminal alcohol group only

Answer

Oxidation of the aldehyde group only

Answer

No oxidation occurs

Answer

Oxidation of both the aldehyde and terminal alcohol groups

Question 4

Which of the following GAG is not sulfated?

Accepted Answer

Hyaluronic acid

Answer

Keratan sulfate

Answer

Dermatan sulfate

Answer

Chondroitin sulfate

Question 5

Which of the following statements about isozymes is true?

Accepted Answer

They catalyze the same reaction but may differ in structure.

Answer

They have the same quaternary structure.

Answer

They have the same enzyme classification but differ in number and name.

Answer

They are distributed uniformly across different organs.

Question 6

Iodine gives red color with:

Accepted Answer

Dextrin

Answer

Glycogen

Answer

Starch

Answer

Inulin

Question 7

Which of the following is false about starvation ketoacidosis?

Accepted Answer

Benedict's test +ve

Answer

Smell of acetone in breath

Answer

Metabolic acidosis

Answer

Rothera's test +ve

Question 8

What type of carbohydrate is inulin classified as?

Accepted Answer

Fructosan

Answer

Glucosan

Answer

Galactosan

Answer

Mannosan

Question 9

How many stereoisomers are possible for an aldohexose?

Accepted Answer

16

Answer

32

Answer

64

Answer

8

Question 10

What is the respiratory quotient of carbohydrates?

Accepted Answer

1

Answer

0.5

Answer

0.8

Answer

0.75

Carbohydrate Chemistry and Classification — MCQs

Carbohydrate Chemistry and Classification — MCQs

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