AP Bio Cellular Respiration

Front

What is glycolysis?

Back

Glycolysis is the metabolic pathway that converts glucose into pyruvate, producing a small amount of ATP and NADH in the process. It occurs in the cytosol.

Front

What is substrate-level phosphorylation?

Back

Substrate-level phosphorylation is a method of generating ATP by transferring a phosphate group from a substrate molecule directly to ADP, rather than through the electron transport chain.

Front

Where does the Krebs Cycle occur?

Back

The Krebs Cycle occurs in the mitochondrial matrix.

Front

What are NADH and FADH₂?

Back

NADH and FADH₂ are electron carriers produced during the Krebs Cycle that transport electrons to the electron transport chain.

Front

What is the role of ATP synthase?

Back

ATP synthase is an enzyme that synthesizes ATP from ADP and inorganic phosphate during oxidative phosphorylation in the electron transport chain.

Front

What is the electron transport chain (ETC)?

Back

The electron transport chain is a series of protein complexes located in the inner mitochondrial membrane that transfer electrons and pump protons to create a proton gradient for ATP production.

Front

What is chemiosmosis?

Back

Chemiosmosis is the process by which ATP is produced in mitochondria as protons flow back into the mitochondrial matrix through ATP synthase, driven by the proton gradient.

Front

What is the main product of glycolysis?

Back

The main products of glycolysis are 2 pyruvate molecules, 2 ATP, and 2 NADH.

Front

What is the significance of the Krebs Cycle?

Back

The Krebs Cycle is crucial for generating high-energy electron carriers (NADH and FADH₂) that are used in the electron transport chain to produce ATP.

Front

What is oxidative phosphorylation?

Back

Oxidative phosphorylation is the process of ATP production that occurs in the mitochondria, involving the electron transport chain and chemiosmosis.