Where would 14C have to be in the starting glucose to ensure that the fermentation process releases all of the 14C label as 14 CO2? The 14C label could be in the C-1 position of glucose. The 14C label could be in the C-2 position of glucose. The 14C label could be in the C-3 position of glucose. The 14C label could be in the C-4 position of glucose. 14C label could be in the C-5 position of glucose. The The 14C label could be in the C-6 position of glucose.
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- The dichotomous key below can be used to distinguish between the three bacteria used for the fermentation experimentUse the to identify which of the three bacteria are indicated by A, B and in the key?What do the yeasts provide for the fermentation chambers?You are attempting to create an E. coli mutant that lacks the enzyme to convert 1,3- Bisphosphoglycerate into 3-Phosphoglycerate. Normally you grow your E. coli in a medium with glucose as its only carbon source. What other compound would you need to add to your normal medium in order to allow your mutant E. coli to grow? Pentose phosphate cycle Pentose phosphate Sedobestudose 2 phosphate Enthrise-4phosphate Glyceraldehyde 3phosphate Fructose Erythrose Glycolysis Glucose phosphate Fructose-6-phosphate Fructose 1.6 diphosphate Glyceraldehyde-3-phosphate Dihydroxyacetone phosphate 1,30iphosphoglycerate 3Phosphoglycerate Dynwate 2Phosphoglycerate Phosphomolywate Acetyl coenzyme A- Crate Isocrate 20 Oxaloacetate, TCA cycle Fumarate Succinate You don't need to add a second carbon source for your mutant to grow Pyruvate Succinyl coenzyme A
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- Different sugars prove to be easier or harder for yeast to metabolize. This affects the amount of energy you can get from each different sugar molecule. The easier the sugar molecule is to metabolize, the higher the energy yield (ie ATP yield). Match the following sugars to their relative energy output from metabolism: Sucrose I Select ] Lactose [Select ] Maltose I Select ] Glucose [Select ] Fructose Select]Select all of the following that are false: a) Fermentation directly produces ATP. b) Fermentation allows glycolysis to continue. c) Fermentation allows cell respiration to continue.Why does the fermentation process produce solutions of only 10 - 15% ethanol?
- As you know Penicillin is produced biosynthetically from cysteine and valine. If thebiosynthetic pathway could accept different amino acids, why do you think penicillin analogsare not formed during the fermentation process, with different amino acids is used?Two groups of tomatoes were grown under laboratoryconditions, one with humus added to the soil and one acontrol without humus. The leaves of the plants grownwithout humus were yellowish (less green) compared withthose of the plants grown in humus-enriched soil. The bestexplanation is that(A) the healthy plants used the food in the decomposing leavesof the humus for energy to make chlorophyll.(B) the humus made the soil more loosely packed, so waterpenetrated more easily to the roots.(C) the humus contained minerals such as magnesium andiron needed for the synthesis of chlorophyll.(D) the heat released by the decomposing leaves of the humuscaused more rapid growth and chlorophyll synthesis.Please answer the following correctly: i) Salt is often used as a food preservative to prevent bacterial and fungal growth (for example, in country ham). But salt is also important to enhance the flavor of bread when added in small amounts. At what concentration does salt begin to inhibit yeast fermentation? j) Does the food preservative Na benzoate inhibit cellular respiration? k) How do fermentation rates compare for baker's yeast (saccharomyces cerviside) and sourdough yeast, (candida milleri) in different pH environments? l) How do fermentation rates compare for yeast used in brewing most beers (S. cervisiae) and lager (S. pastorianus - a hybrid between S. cervisiae and S.eubaymus)?