Respiration Worksheet. Respiration is the controlled release of energy from food. Types of Respiration. Aerobic Respiration

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1 Respiration Worksheet Respiration is the controlled release of energy from food! The food involved in respiration is usually! Internal respiration is controlled by which allow energy to be released in! The energy is trapped in molecules called Types of Respiration! Aerobic Respiration the release of energy from food in the of oxygen! Anaerobic Respiration The release of energy from food the presence of oxygen Aerobic Respiration! Most living things get energy from aerobic respiration and are called! The energy stored in in glucose is released and used to make! When ATP breaks down it for all the reactions in a cell such as movement of muscles, growth of new cells, etc. Equation for Aerobic Respiration +! + + +! + +! Aerobic respiration is relatively, 40% of the energy in glucose is used to make ATP! Any energy not used to produce ATP is Page 1 of 6

2 Aerobic Respiration occurs in 2 stages! Stage 1! Stage 1 Glycolysis! Takes place in the (the cytoplasm without the organelles) as enzymes are found here! Does not require! It only releases of energy! Is the same for both and respiration Stage 1 Glycolysis! A 6 carbon carbohydrate (Glucose) is converted to with the release of a small amount of energy! Most of the energy in the glucose molecule remains in each 3-carbon molecule Stage 2! This stage requires and uses! It releases a of energy! It occurs in the as the necessary enzymes are found here! The 3-carbon molecules are broken down to and Stage 2! The breakdown of the 3-carbon molecules releases a lot of! There is energy left in Carbon Dioxide and Water Page 2 of 6

3 Anaerobic Respiration! Anaerobic respiration can occur in the presence of but it! In anaerobic respiration Glycolysis occurs - this means glucose is broken into two 3-carbon molecules! A of energy is released this way Anaerobic Respiration! There are of anaerobic respiration where the 3-carbon molecules are converted to different substances but all of energy! Anaerobic respiration is said to be than aerobic respiration as less energy is released Fermentation Anaerobic Respiration is also known as! 2 types of fermentation 1. Fermentation 2. Fermentation Lactic Acid Fermentation! This occurs in some and and in animal when there is not enough oxygen! In this fermentation is produced! Glucose! 2 + small amount of energy Examples of Lactic Acid Fermentation! Lactic acid forms when bacteria cause to go! When bacteria respire on cabbage to form! In production and! In production Page 3 of 6

4 Lactic Acid Fermentation in Muscles! When we exercise and get out of breath not enough can reach our muscles and respiration takes place in the muscle! This forms which causes, when we rest the lactic acid is broken down by the Alcohol Fermentation! Takes place in and some fungi such as and in plants when they are deprived of! Involves the of glucose! Glucose! small amount energy Alcohol Fermentation! The ethanol itself is high energy! Alcohol fermentation has been used for centuries! In baking, yeast is used for alcohol fermentation, the evaporates but the carbon dioxide causes the! Baking powder is used instead of yeast in Industrial Fermentation! Biotechnology refers to the use of (such as micro organisms and enzymes) to carry our! In fermentation the micro organisms are placed in a container with a suitable on which they can! The vessel in which biological reactions can take place is called a Page 4 of 6

5 Advantages of Immobilised Cells! Immobilisation is gentle it does! Immobilised cells can be easily! Immobilised cells for filtration at the end of bioprocessing! Immobilised cells can be, reducing costs Uses of Immobilised Cells! Immobilised cells are becoming more popular than immobilised enzymes as it isolating and purifying enzymes, which is an expensive process Differences between Aerobic and Anaerobic Respiration Location Oxygen Requirements End Products Energy Produced Aerobic Cytoplasm and Lumen and Cristae of mitochondria Lots of energy (38 ATP) Anaerobic Does not use O 2 Ethanol + CO 2 or Lactic acid Syllabus Can You?...! Define the term: aerobic respiration.! Explain the role of aerobic respiration what does it do for organisms?! Express aerobic respiration by a balanced equation.! State the nature of respiration from syllabus what stages are involved, where do these take place, what happens?! Define the term: anaerobic respiration.! Express anaerobic respiration by a balanced equation.! State the nature and role of fermentation.! State the cellular location of the first & second stage.! Explain the role of micro organisms in fermentation.! Explain the role of micro organisms including bioprocessing and Bioreactors END Page 6 of 6