When glucose is high, cAMP is low; CAP does not bind the lac operator, and RNA polymerase does not bind the lac promoter. CAP is only active when glucose levels are low, which means the cAMP levels are high, and therefore the lac operon can only be transcribed at high rate when glucose is absent. The importance of this is that the bacteria only turns on the lac operon and start using lactose only after they have used up all the preferred energy source which is glucose.
Answer:
You’re answer is C
Explanation:
Atoms consist of three basic particles: protons, electrons, and neutrons. The center on the atom is called the Nucleus.
In active transport, materials move from an area of high concentration to an area of lower concentration (goes down the concentration gradient) and it requires or uses energy in the form of ATP (adenosine triphosphate)
Well, during a solar eclipse the moon shadow blocks out the sun from earth and during a lunar eclipse the earth shadow blocks our view of the moon.
