What is cell respiration IB Biology?
Cell respiration involves the oxidation and reduction of electron carriers. Phosphorylation of molecules makes them less stable. In glycolysis, glucose is converted to pyruvate in the cytoplasm. Glycolysis gives a small net gain of ATP without the use of oxygen.
What is cellular respiration biology simple definition?
cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.
What is aerobic respiration IB?
Aerobic Respiration However, the pyruvate produced from glycolysis cannot be oxidised further without the presence of oxygen. The oxidisation of the pyruvate forms part of the aerobic respiration and therefore is called aerobic cell respiration. Aerobic respiration occurs in the mitochondria of cells.
What is glycolysis IB?
Glycolysis involves the breakdown of glucose into pyruvate (× 2), with a small net gain of ATP (two molecules) Glycolysis occurs in the cytosol and does not require oxygen (it is an anaerobic process)
What is ATP IB Biology?
ATP (adenosine triphosphate) is a high energy molecule that functions as an immediate source of power for cell processes. One molecule of ATP contains three covalently linked phosphate groups – which store potential energy in their bonds.
What is cellular respiration examples?
An example of cellular respiration in plants is the use of photoautotrophic processes to obtain the glucose needed for cellular respiration. This means that plants can use the light energy they acquire from the sun to yield glucose and oxygen.
What is the basic purpose of cellular respiration?
The main function of cellular respiration is to break down glucose to form energy.
What is photosynthesis IB Biology?
Photosynthesis is the process by which cells synthesise organic molecules (e.g. glucose) from inorganic molecules (CO2 and H2O) in the presence of sunlight. This process requires a photosynthetic pigment (chlorophyll) and can only occur in certain organisms (plants, some bacteria)
What is cellular respiration kid definition?
Cellular respiration is the process by which organisms use oxygen to break down food molecules to get chemical energy for cell functions. Cellular respiration takes place in the cells of animals, plants, and fungi, and also in algae and other protists.
What is cell respiration in biology?
Polygenic inheritance Cell respiration 3.7.1 Define cell respiration. Cell respiration is the controlled release of energy from organic compounds in cells to form ATP. 3.7.2 State that, in cell respiration, glucose in the cytoplasm is broken down by glycolysis into pyruvate, with a small yield of ATP.
What is the role of glycolysis in cell respiration?
Cell respiration is the controlled release of energy from organic compounds in cells to form ATP. 3.7.2 State that, in cell respiration, glucose in the cytoplasm is broken down by glycolysis into pyruvate, with a small yield of ATP. In cell respiration, glucose in the cytoplasm is broken down by glycolysis into pyruvate with a small yield of ATP.
What is the catabolic pathway of cellular respiration?
Cellular respiration is a catabolic pathway (it releases energy by breaking down complex molecules) D. We will study the breakdown of glucose 4.
What is the fuel for cellular respiration?
Food is the fuel for cellular respiration -food=organic compounds (carbs/fats/proteins) C. Cellular respiration is a catabolic pathway (it releases energy by breaking down complex molecules) D.