Close

2021-05-14

Does cellular respiration produce usable energy?

Does cellular respiration produce usable energy?

Cellular respiration releases stored energy in glucose molecules and converts it into a form of energy that can be used by cells.

What are 2 things needed for cellular respiration?

Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.

How does cellular respiration contribute to the organism’s energy needs?

Cellular respiration is a metabolic pathway that converts nutrients into energy (ATP) that organisms need to live. The oxygen you breathe is used to break down the nutrients you consume through food in order to make ATP, while carbon dioxide and water are generated as waste products.

What is the function of the ETC in cellular respiration?

The primary task of the last stage of cellular respiration, the electron transport chain, is to transfer energy from the electron carriers to even more ATP molecules, the “batteries” which power work within the cell.

What is the main purpose of etc?

What is the main purpose of the electron transport chain? The main purpose of the electron transport chain is to build up a surplus of hydrogen ions (protons) in the intermembrane space so that there will be a concentration gradient compared to the matrix of the mitochondria.

Why is ETC important?

The ETC is the most important stage of cellular respiration from an energy point of view because it produces the most ATP. When a cell needs energy, it breaks the third phosphate group bond and uses the resulting energy.

Where does etc occur in cellular respiration?

The ETC requires oxygen, which means that it is an aerobic process. It takes place in the folds of the inner membrane of the mitochondria. These folds are called cristae. In this step of cellular respiration, electron carriers NADH and FADH2 drop off the electrons they’ve carried from the citric acid cycle.

What is the major difference between photosynthesis and cellular respiration as shown here?

While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water. While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide.

What happens to the oxygen that is used in cellular respiration quizlet?

When acetyl-CoA is oxidized to carbon dioxide in the Krebs cycle, chemical energy is released and captured in the form of NADH, FADH2, and ATP. What happens during aerobic cellular respiration? In cellular respiration, cells use oxygen to break down sugar and store its energy in molecules of adenosine triphosphate.

What is the connection between the electron transport chain and oxygen?

Oxygen sits at the end of the electron transport chain, where it accepts electrons and picks up protons to form water.

What is oxygen converted to during cellular respiration?

Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.

Why it is called oxidative phosphorylation?

In the mitochondrion, what the proton gradient does is facilitate the production of ATP from ADP and Pi. This process is known as oxidative phosphorylation, because the phosphorylation of ADP to ATP is dependent on the oxidative reactions occurring in the mitochondria.