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Lactose uptake in E. coli is an example of which type of transport?
Wiki User
∙ 14y ago
secondary active transport
Wiki User
∙ 14y ago
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Lactose uptake in E coli is an example of which type of transport?
it's an example of secondary active transport.
Is E. coli lactose fermenter?
yes it is lactose positive
Describe how gene regulation occurs in bacterial cells?
Escherichi coli (E. coli) bacteria provide a good example of gene regulation - E. coli bacteria are genetically encoded to regulate production of enzymes that digest lactose only when lactose is present and no glucose is available.
What happen to lac repressor in E. coli when lactose is present?
E. coli binds with lactose which changes its conformation so that it no longer binds to DNA. This allows the lactose operon to be transcribed.
How many genes in the lac operon are found in e. coli?
My answer is 3, I am pretty sure I am right, but I would double check to make sure. I am in ninth grade taking biology at PineTree.
An E. coli cell without a functional LacI gene is expected to -be unable to transport lactose into te cell wall -be unable to metabolize lactose within the cell wall -always produce Beta-galactosidas?
Always produce Beta-galactosidas
Lactose in take in E. coli?
it is by lac operon syastem
What would you assume if you found RNA transcripts of lactose-utilizing genes within E coli?
the presence of lactose
To break down lactose Escherichia coli need three different what?
no
What is the function of an operator in bacteria?
The function of an operator in bacteria can be defined as the required for the transport and metabolism of the lactose in Escherichia coli and some other enteric bacteria. It consist of three adjacent structural genes.
How does E. coli benefit by making enzymes to utilize lactose only when lactose is in the cellular environment?
By controlling gene expression, E. coli bacteria conserve resources and produce only those proteins that are needed
What happens when e coli is mixed with glucose sucrose and lactose?
E. coli will always metabolize glucose when present to avoid using excess energy to breakdown the other sugars into their subunits (lactose breaks down into glucose and galatose etc.)
