Nucleotide Structure and Function

This video tutorial explains nucleotides, their structure, and their role in forming DNA and RNA. It covers the components of nucleotides, including the pentose sugar, nitrogenous base, and phosphate group. The video also highlights the differences between DNA and RNA nucleotides and describes the formation of polynucleotides through condensation reactions, emphasizing the importance of phosphodiester bonds.

What are the three main components of a nucleotide?

• Sugar, base, phosphate

• Amino acid, sugar, phosphate

• Lipid, base, sugar

• Protein, sugar, phosphate

What type of sugar is found in the center of a nucleotide?

• Tetrose sugar

• Triose sugar

• Pentose sugar

• Hexose sugar

Which elements are found in nucleotides?

• Carbon, Oxygen, Nitrogen, Sulfur, Phosphorus

• Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus

• Carbon, Hydrogen, Oxygen, Sulfur, Phosphorus

• Carbon, Hydrogen, Nitrogen, Sulfur, Phosphorus

Which base is found in RNA but not in DNA?

• Thymine

• Adenine

• Uracil

• Guanine

Which of the following bases are purines?

• Adenine and Guanine

• Guanine and Cytosine

• Thymine and Cytosine

• Adenine and Thymine

What is the sugar called in DNA nucleotides?

• Ribose

• Deoxyribose

• Glucose

• Fructose

What is the name of the bond that forms between two nucleotides?

• Peptide bond

• Glycosidic bond

• Phosphodiester bond

• Hydrogen bond

What is released during the formation of a phosphodiester bond?

• Carbon dioxide

• Oxygen

• Water

• Nitrogen

What is the term for a polymer of nucleotides?

• Polypeptide

• Polysaccharide

• Polymerase

• Polynucleotide

What is the process called when a phosphodiester bond is broken by adding water?

• Oxidation

• Hydrolysis

• Reduction

• Condensation