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Multiple Choice
Which chemical process generates the ATP produced in glycolysis?
A
Substrate-level phosphorylation
B
Oxidative phosphorylation
C
Chemiosmosis
D
Photophosphorylation
Verified step by step guidance
1
Understand the context of glycolysis: Glycolysis is a metabolic pathway that converts glucose into pyruvate, releasing energy in the form of ATP.
Identify the type of phosphorylation involved: In glycolysis, ATP is generated directly in the cytoplasm without the involvement of the electron transport chain.
Define substrate-level phosphorylation: This is a process where a phosphate group is directly transferred from a phosphorylated substrate to ADP, forming ATP.
Differentiate from other types of phosphorylation: Oxidative phosphorylation occurs in mitochondria and involves the electron transport chain, while photophosphorylation occurs in chloroplasts during photosynthesis.
Conclude that substrate-level phosphorylation is the correct process for ATP generation in glycolysis, as it directly transfers a phosphate group to ADP without the need for a proton gradient or electron transport chain.