Glycolysis Enzymes and Reactions

The video tutorial explains the biochemical process of glycolysis, starting with glucose and ending with pyruvate. It covers the key reactions catalyzed by enzymes such as hexokinase, phosphoglucomutase, and aldolase, highlighting the transfer of phosphate groups and the production of ATP and NADH. The tutorial emphasizes the importance of enzyme names and their roles in the glycolysis pathway, providing a detailed breakdown of each step and the molecular transformations involved.

What is the initial substrate in glycolysis?

• Glucose

• Lactose

• Fructose

• Sucrose

Which enzyme catalyzes the conversion of glucose to glucose 6-phosphate?

• Enolase

• Aldolase

• Hexokinase

• Phosphoglucomutase

What is the role of isomerases in glycolysis?

• Split molecules

• Oxidize molecules

• Add phosphate groups

• Rearrange molecules

Which enzyme is responsible for converting fructose 6-phosphate to fructose 1,6-bisphosphate?

• Triose phosphate isomerase

• Hexokinase

• Phosphofructokinase

• Aldolase

What are the two molecules formed from the splitting of fructose 1,6-bisphosphate?

• ATP and ADP

• Glucose and fructose

• Dihydroxyacetone phosphate and glyceraldehyde 3-phosphate

• Pyruvate and lactate

Which enzyme maintains the equilibrium between dihydroxyacetone phosphate and glyceraldehyde 3-phosphate?

• Hexokinase

• Enolase

• Triose phosphate isomerase

• Phosphoglycerate kinase

What is the first oxidation-reduction reaction in glycolysis catalyzed by?

• Phosphoglycerate kinase

• Glyceraldehyde-3-phosphate dehydrogenase

• Aldolase

• Enolase

Which molecule is produced alongside ATP in the conversion of 1,3-bisphosphoglycerate?

• ADP

• NADH

• Pyruvate

• 3-phosphoglycerate

What is the final product of glycolysis?

• Glucose

• Fructose

• Pyruvate

• Lactate

Which enzyme catalyzes the final step of glycolysis?

• Enolase

• Phosphoglycerate mutase

• Pyruvate kinase

• Hexokinase