Glucose is the preferable source of energy for E. coli cells. By adding small amounts of glucose, 0.05% in this case, it would enable cell growth to proceed as usual until it has reached mid log growth phase. At this point, the small amount of glucose added should have been depleted and the E.coli cell will now be dependent on lactose present as its source of nutrients. Lactose will also inactivate lac repressors and given the lack of glucose, CAP binding to high amounts of cAMP will be activated and increase expression of lac operon genes.
It should be noted that this system of expression may not tightly regulate the expression of lac operon before the E.Coli reaches exponential phase. As lactose is still present, lac repressors will be inactivated throughout the entire experiment and hence small amounts of proteins might be produced even when not auto-induced. After auto-induction, CAP-cAMP protein complex will simply upregulate expression of lac operon genes.
Answer:The question is not complete.
The condition are:
Variation of trait.
Differential reproduction.
Traits passed from parent to offspring.
Explanation:
Natural selection is refers to characteristics or traits posses by organisms that will make it to survive and reproduce in it's environment thereby passing those traits to it's offsprings. The theory of natural selection was proposed by Charles Darwin. There are four conditions that allow natural selection to take place and they are; reproduction, variation in characters or trait, heredity and trait passed from parent to offspring.
The phospholipid bilayer is the cell membrane of the cell so the only answer choice that makes any sense is the first one - The balance of ions inside a cell will be disrupted and proteins couldleak out because the phospholipid bilayer forms the cell membrane.
the answer you are looking for is B. Glucose is broken down into two pyruvate molecules.
this process occurs during glycolysis
The increase of acidity in the ocean waters can have a great impact in the living organisms in it. Most especially that the earth’s ocean had a pH of 8.2. In recent years, it has dropped to 8.1. This change might affect the ocean environment in a way that t<span>he skeletons of coral will become soft due to increased acidity. The answer for this would be option A. Hope this helps.
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