Describe the following chemicals require in fermentation medium a) Micronutrient b) Trace element
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- Which of the following is true concerning the comparison of fermentation to aerobic cellular respiration? a) Both require oxygen. b) Fermentation extracts less energy. c) Fermentation produces only alcohol. d) All of the above are true. e) None of the above is true.Define the following, and clarify the differences between them A) Fermentation B) Aerobic respiration C) Anaerobic respirationYou are characterizing a newly discovered organism . You have noticed that the organism grows on two carbon sources - sucrose and mannitol . Whenever you add both sugars to the medium , sucrose will be completely metabolized before mannitol . a ) What is this growth pattern called ? b ) Describe a possible growth curve of sequential metabolism of the sugars .
- Draw the batch bioreactor used in the production of Parmesan cheese in a simple form.Lactic acid is an example of a common fermentation product. Fermentation is reduced by electrons received productions like this are produced when from NADH. a) 3-phosphoglyceraldehyde Ob) glucose Oc) ethanol d) pyruvate e) acetyl-CoAWhich of the following statements concerning fermentation is TRUE?a) Fermentation ultimately provides NAD+b) Fermentation requires oxygenc) Glucose is an important direct end-product of fermentationd) The F1FO ATP synthase is important for fermentatione) Proton motive force is used in fermentation Give typing answer with explanation and conclusion
- Provide the conditions (e.g., intrinsic properties, storage conditions, etc.) that will make the recovery of the following microorganisms in commercially sterile foods acceptable: a) Obligate thermophilic sporeforming bacteria b) Acid-tolerant microorganisms c) Mesophilic or thermophilic sporeformersWhich of the statements about alcohol producing fermentation is FALSE? a) Lactic acid may be produced as a byproduct b) It produces CO2 c) It allows the cell to continue producing ATP when oxygen is low d) It generates more ATP than aerobic respirationThe purpose of fermentation reactions is: a) to provide more glucose for glycolysis b) to generate ketone bodies which may replace glucose b) to enhance the oxygen using ability of the electron transport chain d) to keep glycolysis going under low oxygen conditions by recycling NAD Fructose has a higher glycemic index than glucose. This is because: a) it is converted into glucose b) it stimulates gluconeogenesis c) its metabolism is unregulated d) it signals glucagon release Which of these molecules has a higher phosphoryl transfer potential than ATP? A) glucose-6-phosphate b) glucose-1-phosphate c) glyceraldehyde-3-phosphate d) 1,3-biphosphoglycerate (1,3-BPG) After vigorous exercise, the primary source of sore muscles is: a) acetaldehyde b) lactic acid c) glyceraldehyde-3-phosphate d) phosphoenolpyruvate How many pyruvate molecules are made from 1 glucose molecule during glycolysis? A) 1 b) 2 C) 3 D) 4
- 11. Foods can be preserved in all the followings except: a) lyophilizing b) Drying c) Salting d) Fermentation 12. The temperature of the autoclave should be held for _____ minutes at least: a) 10 b) 15 c) 20 d) 30 13. The organism used to produce soft cheese is: a) Penicillium b) lactic acid producing bacteria c) ethanol producing bacteria d) a and c1a) If E. coli can ferment lactose to form an acid and a gas, you expect the fermentation broth to be yellow and a bubble trapped in the Durham tube. a) True b) False 1b) What color would phenol red appear at pH 6.2? a) red b) orange c) yellow d) colorlessBasically, catalase tests is performed to confirm if an organism is an: A) Carbon dioxide producer B) H₂Oterminal electron acceptor C) Hydrogen peroxide detoxifier D) Oxygen producer E) Fermentative