e-coli can synthesize Tryptophan, glucose and lactose for energy is this correct? or are there more
E-coli can synthesize Tryptophan, glucose and lactose for energy ----> FALSE
E.coli can synthesize tryptophan but not glucose and lactose, instead, E.coli can metabolize glucose and lactose.
e-coli can synthesize Tryptophan, glucose and lactose for energy is this correct? or are there more
In E coli the lac operon will express enzymes for the digestion of (Glucose/Lactose) when it is present, but if both the sugar mentioned before and (Glucose/ Lactose) are present the lac operon is repressed, resulting in the (Glucose/ Lactose) being used first. If there are high levels of cAMP, this means (Glucose/Lactose) levels are low, this results in a (Represser/Promoter) being activated and (Decreasing/Increasing) transcription of the lac operon.
At what levels of glucose and lactose should E. coli produce galactoside permease and beta-galactosidase? (2 marks)
The inducer of the lactose operon in E. coli is CAP. cAMP. allolactose. glucose. galactos Codons refer to triplet base sequences in the mRNA. nontemplate strand of DNA. template strand of DNA. tRNA. rRNA.
Identify the correct operon: Trp/lac/or none. - has tryptophan but no lactose - has both tryptophan and lactose - contains neither.
16. Glycerol can be used to Ca, provide energy to cells 6 b. synthesize glucose c. synthesize fats d. more than one choice is correct
E. coli/brings lactose into its cell by using an enzyme called Lac Permease. Once the lactose is inside, another enzyme called B-galactosidase converts the lactose into galactose and glucose. 1. How is E. coll's way of dealing with lactose similar to how your celis do it? 2. How is it different?
Glycerol can be used to 1 provide energy to cells 2. synthesize glucose synthesize fats d. more than one choice is correct Which of the folowing is NOT true about an amino acid that is made from an intermediate of the citric acid cycle? a tis added to the amino acid pool b. it is an essential who acid c. it can leave the cell where it was made d it can be used for protein synthesis To produce 4...
20862a a A mutant E. coli strain is found that does not synthesize any enzymes in the presence or absence of lactose for allolactose). What mutation(s) can lead to this outcome? The lac operon is shown here as a guide. ones where proteins bind DNA genes and regulatory sequences och Operator o Lacy o Lacz o Laca promoter MacBook Air * जीप
E. coli can be found in a pond. If very high amounts of tryptophan are present in this environment, then which of the following conditions would likely be occurring in E. coli? Choose YES if that condition would likely be occurring, or NO if that condition would not likely be occurring. Yes No The first enzyme (or enzyme complex) in the biosynthetic pathway for tryptophan synthesis is inhibited by feedback inhibition. Yes No The leader-attenuator region of the trp mRNA forms hairpins...
When E coli has access to tryptophan in the environment, the trp repressor protein (does or does not) bind to the (operator or activator) and the trp genes (are or are not) transcribed. Select the correct answer in the ( ).