The extracellular glucose inhibit transcription of the lac operon (D) by reducing the levels of intracellular cAMP.
Lac operon is the assembly of various genes that are involved in the uptake and metabolism of lactose of E. coli or any other bacteria. It consists of a regulator gene, promoter gene, operator and structural gene. Structural genes are three: z, y and a. Each codes for a different enzyme.
cAMP is the cyclic Adenosine Monophosphate. It is produced by the bacteria when there are low levels of glucose in it. Hence it is also named as hunger signals. Therefore, cAMP is responsible for activating the operon to produce lactose.
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Answer:
Your answer would be betwen 400 to 700 nm
Answer:
Single celled organism that love moisture is yeast.
Explanation:
Yeast is a single cell organism that is grouped with kingdom fungi. The commonly known yeast is <em>Saccharomyces cerevisiae </em>that is used for baking and brewing industry. Yeast fermentation requires moisture and a warm environment. The moisture and carbohydrates are hydrolyzed during fermentation process to the simple sugars.
1.All living things are made up of one or more cells.
2.A cell is the most basic structure of organisms.
3.All living cells come from pre-existing cells.