what is the correct sequence of events in cellular respiration


What are the 4 stages of cellular respiration and where do they occur?

The cellular respiration process includes four basic stages or steps: Glycolysis, which occurs in all organisms, prokaryotic and eukaryotic; the bridge reaction, which stets the stage for aerobic respiration; and the Krebs cycle and the electron transport chain, oxygen-dependent pathways that occur in sequence in the …

What is the correct sequence of stages in cellular respiration?

Ch. 9 Honors Biology Cellular Respiration
Question Answer
What is the correct sequence of stages of cellular respiration? glycolysis, Krebs Cycle, Electron Transport Chain
What is the correct equation for cellular respiration? C6H12O6 + 6 O2 –> 6 CO2 + 6 H2O
What are the products of cellular respiration? CO2, H2O, ATP

What is the correct order of cellular respiration quizlet?

The reactions of cellular respiration can be grouped into three stages: glycolysis, the Krebs Cycle, and electron transport.

What are the 3 steps in order of cellular respiration?

The reactions of cellular respiration can be grouped into three main stages and an intermediate stage: glycolysis, Transformation of pyruvate, the Krebs cycle (also called the citric acid cycle), and Oxidative Phosphorylation.

What are the 4 phases of cellular respiration?

The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation.

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What are the 4 phases of respiration?

The respiratory cycle is divided into 4 phases: inspiration (light green), end-inspiration (dark green), expiration (light red) and end-expiration (dark red).

Which of the following is the correct sequence in which energy flows in cellular respiration aerobic?

Glycolysis, Krebs cycle, electron transport chain.

What is the correct sequence of steps in cellular respiration starting with glucose s?

What is the correct sequence of steps in cellular respiration, starting with glucose? Glycolysis, pyruvate processing, citric acid cycle, electron transport, oxidative phosphorylation.

What are the 3 stages of cellular respiration and where do they occur?

The three main stages of cellular respiration (aerobic) would include Glycolysis in the cytoplasm, the Kreb’s Cycle in the Mitochondrial Matrix and the Electron Transport Chain in the Mitochondrial Membrane.

What are the 3 main steps of the electron transport chain?

The three main steps in the electron transport chain are:
  • Generation of a proton gradient across the mitochondrial membrane. Proton accumulation occurs in the intermembrane space of mitochondria.
  • Reduction of molecular oxygen and formation of water. …
  • ATP synthesis by chemiosmosis.

What is the first step involved in respiration?

The first step in respiration is to perform breathing which involves inhalation of air to get the oxygen followed by exhalation of carbon dioxide. This step is further carried forward through the diffusion of gases into the blood and out of the blood. The freshly diffused oxygen is then transported to the tissues.

What are the 4 steps of aerobic respiration quizlet?

Terms in this set (33)
  • Step 1 is. glycolysis.
  • Step 2 is. preparatory reaction.
  • Step 3 is. citric acid cycle OR kreb’s cycle.
  • Step 4 is. Electron Transport Chain.
  • What is glycolysis. …
  • Where is glycolysis located. …
  • How many ATP does glycolysis create. …
  • Energy carriers of glycolysis.

What are the three steps of cellular respiration quizlet?

The cellular respiration process consists of three stages: glycolysis, the Krebs cycle, and the electron transport chain. glycolysis, the six-carbon sugar molecule (glucose) breaks down into 2 three-carbon molecules (pyruvic acid).

What is the cycle of respiration?

The respiratory cycle includes two phases which are an inspiration, or the inhaling, of environmental air which includes oxygen; and the expiration, or exhalation, of carbon dioxide. Each inspiration plus one expiration is one breath. The lungs expand and contract with each breath.

What are the 5 phases of respiration?

Exchange of gases between air and blood at pulmonary capillaries (Alveoli).

Terms in this set (5)
  • Pulmonary Ventilation. …
  • External Respiration. …
  • Transport of gases through blood vessels. …
  • Internal Respiration. …
  • Cellular Respiration.

What are the five events of respiration?

Terms in this set (5)
  • pulmonary ventilation. O2 into lungs from inspired air; CO2 out of lungs from expired air.
  • external respiration. gas exchange between alveoli and the capillaries.
  • respiratory gas transport. gasses are transported in blood (via vessels) to tissues.
  • internal respiration. …
  • cellular respiration.
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What are the 4 steps of the electron transport chain?

The key steps of this process, shown in simplified form in the diagram above, include:
  • Delivery of electrons by NADH and FADH 2​start subscript, 2, end subscript. …
  • Electron transfer and proton pumping. …
  • Splitting of oxygen to form water. …
  • Gradient-driven synthesis of ATP.

What is the third step in cellular respiration ?( 1 point?

The third and final stage of cellular respiration, called electron transport , takes place on the inner membrane of the mitochondrion. Electrons are transported from molecule to molecule down an electron-transport chain.

What are the electron acceptors in cellular respiration?

Explanation: In cellular respiration, oxygen is the final electron acceptor. Oxygen accepts the electrons after they have passed through the electron transport chain and ATPase, the enzyme responsible for creating high-energy ATP molecules.

What are the three phases of aerobic cellular respiration and where in the cell does each of these occur quizlet?

The 3 phases of cellular respiration are Glycolysis, the Krebs Cycle, and the Electron Transport Chain. Where in the cell does the glycolysis part of cellular respiration occur? Glycolysis occurs in the cytoplasm of the cell.

What are the main stages of cellular respiration and where do they take place quizlet?

Terms in this set (4)
  • 1st- Glycolosis. Splitting sugars in cytoplasm, energy investment phase -> 2 ATP molecules combine with glucose molecule.
  • 2nd- Oxidation. Pyruvates moving into mitochondria, through oxidation pyruvates broken into water.
  • 3rd- Krebs Cycle/Citric Acid Cycle. …
  • 4th- Electron Transport Chain.

What are the respiratory structures in order?

These are the parts:
  • Nose.
  • Mouth.
  • Throat (pharynx)
  • Voice box (larynx)
  • Windpipe (trachea)
  • Large airways (bronchi)
  • Small airways (bronchioles)
  • Lungs.

What is the order of the respiratory tree?

The lower respiratory tract or lower airway is derived from the developing foregut and consists of the trachea, bronchi (primary, secondary and tertiary), bronchioles (including terminal and respiratory), and lungs (including alveoli).

What is complex 4 in the electron transport chain?

Complex IV of the electron transport chain, also known as cytochrome c oxidase, is a multiunit structure that functions to transfer electrons form cytochrome c to oxygen and in the process form water and help generate a proton gradient. … CuB associates with heme A-3 to help reduce oxygen into water.

What happens during the electron transport chain in cellular respiration?

The electron transport chain is the last stage of the respiration pathway. It is the stage that produces the most ATP molecules. … The electrons transfer their energy to the proteins in the membrane providing the energy for hydrogen ions to be pumped across the inner mitochondrial membrane.

What are the major events of the electron transport chain?

The events of the electron transport chain involve NADH and FADH, which act as electron transporters as they flow through the inner membrane space. In complex I, electrons are passed from NADH to the electron transport chain, where they flow through the remaining complexes. NADH is oxidized to NAD in this process.

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Where do the steps of cellular respiration occur?

The Location of Cellular Respiration

Glycolysis takes place in the cytosol, whereas pyruvate oxidation, the Krebs cycle, and oxidative phosphorylation occur in the mitochondrion. Figure 1 shows the locations of the main biochemical reactions involved in cellular respiration.

What step in cellular respiration produces the most ATP?

Krebs cycle
The Krebs cycle takes place inside the mitochondria. The Krebs cycle produces the CO2 that you breath out. This stage produces most of the energy ( 34 ATP molecules, compared to only 2 ATP for glycolysis and 2 ATP for Krebs cycle).

What is final electron acceptor in cellular respiration?

Oxygen is the final electron acceptor in this respiratory cascade, and its reduction to water is used as a vehicle by which to clear the mitochondrial chain of low-energy, spent electrons.

What is the step where electrons are released and gathered by acceptor molecules?

Cellular respiration begins when electrons are transferred from NADH and FADH2—made in glycolysis, the transition reaction, and the Krebs cycle—through a series of chemical reactions to a final inorganic electron acceptor (either oxygen in aerobic respiration or non-oxygen inorganic molecules in anaerobic respiration).

How many stages are there in glycolysis?

Aminoacids are converted to either pyruvate or oxaloacetate prior to gluconeogenesis. Three steps of glycolysis are irreversible and therefore need bypass reactions for gluconeogenesis. Pyruvate to PEP: Pyruvate synthesized by glycolysis or from aa is in the mitochondria.

Which of the following describes a correct order of structures in the respiratory passageway?

(D) Pharynx, larynx, trachea, bronchi, bronchioles is the correct order of structures in the respiratory passage ways.

How does the respiratory system work steps?

When you inhale (breathe in), air enters your lungs and oxygen from the air moves from your lungs to your blood. At the same time, carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled (breathe out). This process is called gas exchange and is essential to life.

What is the correct order of air flow from the nose to the alveoli in the lungs?

Air enters through the nose (and sometimes the mouth), moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi and bronchioles till the alveoli.

Cellular Respiration (UPDATED)

Cellular Respiration

Stages of cellular respiration

Introduction to cellular respiration | Cellular respiration | Biology | Khan Academy

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