Carbohydrate Structure and Function

This video tutorial covers carbohydrates, focusing on monosaccharides like glucose, fructose, and galactose. It explains their structures, chemical formulas, and differences, such as isomerism and epimerism. The video also introduces other monosaccharides like ribose and deoxyribose, highlighting their roles in nucleic acids. The simplest sugar, glyceraldehyde, is also mentioned.

What is the chemical formula for glucose?

• C6H12O6

• C5H10O5

• C6H10O5

• C5H12O6

What is the empirical formula for carbohydrates?

• C1H2O1

• C2H4O2

• C6H12O6

• C5H10O5

Which of the following is a characteristic of fructose?

• Has the same chemical formula as glucose

• Is a stereoisomer of glucose

• Is an aldo hexose

• Forms a six-membered ring

Which of the following sugars forms a five-membered ring?

• Galactose

• Fructose

• Glucose

• Glyceraldehyde

How do glucose and galactose differ structurally?

• At carbon 1

• At carbon 4

• In their ring size

• In their chemical formula

What is the specific term for the relationship between glucose and galactose?

• Isomers

• Epimers

• Anomers

• Enantiomers

Which sugar is found in RNA?

• Glucose

• Ribose

• Deoxyribose

• Galactose

What is the main structural difference between ribose and deoxyribose?

• Ring size

• Type of nucleic acid they are found in

• Presence of a hydroxyl group

• Number of carbon atoms

Which nucleic acid contains deoxyribose?

• Neither RNA nor DNA

• Both RNA and DNA

• RNA

• DNA

What is the simplest sugar mentioned in the video?

• Glucose

• Fructose

• Glyceraldehyde

• Galactose