Cellular Respiration Overview

<p>It uses alternative electron acceptors instead of oxygen. (D)</p> Signup and view all the answers

<p>2 ATP (D)</p> Signup and view all the answers

<p>ATP (C)</p> Signup and view all the answers

<p>Pyruvate (A)</p> Signup and view all the answers

<p>It is dissipated by the movement of ATP synthase. (D)</p> Signup and view all the answers

<p>To act as electron carriers (A)</p> Signup and view all the answers

<p>To create a proton gradient across the inner mitochondrial membrane, ultimately driving ATP synthesis. (D)</p> Signup and view all the answers

<p>Glycolysis takes place in the cytoplasm, while the Krebs cycle takes place in the mitochondria. (D)</p> Signup and view all the answers

<p>Because it involves a series of reactions that repeat. (C)</p> Signup and view all the answers

<p>Both NADH and FADH2 are oxidized during the electron transport chain, releasing energy that drives ATP synthesis. (C)</p> Signup and view all the answers

<p>Oxygen acts as a final electron acceptor in the electron transport chain, accepting electrons and combining with hydrogen ions to form water. (B)</p> Signup and view all the answers

<p>To convert pyruvate into a molecule that can enter the Krebs cycle (C)</p> Signup and view all the answers

<p>Through substrate-level phosphorylation, directly transferring a phosphate group (A)</p> Signup and view all the answers

<p>Generates ATP through a different metabolic pathway, leading to significantly less ATP production. (C)</p> Signup and view all the answers

<p>2 (A)</p> Signup and view all the answers

<p>It occurs in the cytoplasm of the cell (B)</p> Signup and view all the answers

<p>Aerobic respiration generates significantly more ATP per glucose molecule compared to anaerobic respiration. (A)</p> Signup and view all the answers

Process where cells break down glucose to release ATP energy.

First stage of cellular respiration occurring in the cytoplasm, breaking glucose into pyruvate.

Occurs in mitochondrial matrix, converts pyruvate into acetyl CoA, releases CO2 and produces NADH.

Also known as citric acid cycle, occurs in the mitochondrial matrix, produces ATP, NADH, FADH2, and CO2.

Final stage in mitochondria, uses NADH and FADH2 to generate ATP via the electron transport chain.

Type of cellular respiration that requires oxygen and produces more ATP than anaerobic respiration.

Occurs without oxygen, less efficient ATP production, includes fermentation processes.

Cellular respiration efficiently generates ATP from glucose; aerobic > anaerobic in ATP yield.

Produces 2 ATP, 6 NADH, and 2 FADH2 per glucose.

Enzyme that synthesizes ATP using a proton gradient.

NADH and FADH2 transfer electrons through protein complexes.

Final electron acceptor in the electron transport chain forming water.

Aerobic yields more ATP than anaerobic respiration.

There are four main stages: glycolysis, pyruvate oxidation, Krebs cycle, and oxidative phosphorylation.

Initial phase of glycolysis using 2 ATP to activate glucose.

Phase of glycolysis producing 4 ATP and 2 NADH from substrate-level phosphorylation.

Net gain of 2 ATP, 2 NADH, and 2 pyruvate molecules from one glucose molecule.

Produced from pyruvate during the transition to the citric acid cycle; releases CO2 and generates NADH.

Uses acetyl CoA and oxaloacetate to produce citrate, generating ATP, NADH, and FADH2.

One turn of the cycle produces: 1 ATP, 3 NADH, and 1 FADH2.

Process of producing ATP directly in glycolysis and Krebs cycle without the electron transport chain.