Answer: D) cAMP
Explanation:
In the absence of glucose cell can make use of other sources of carbohydrates such as lactose. In E. Coli and other bacteria utilization of lactose depends on the availability of cAMP. Bacteria accumulate cAMP only when starved. When glucose is exhausted, cAMP is available in plenty.
cAMP is necessary for the gene expression because it binds catabolite repressor protein (CAP) to form CAP-cAMP complex. CAP is a lac repressor the binds to the operator site of the lac operon preventing RNAP From binding to the promoter.
RNA polymerase can bind to the promoter site only when CAP-cAMP formed
Answer:
Explanation:
quadrant to determine the population of plants. The quadrants is square in shape and its been marked with boundaries. It is place on a particular location to determine the number of plants.
Population of owl in 2000 =200 owl
Population of owl in 2004 =126 owl
Change in population = 200 -126=74 plants
There is a decrease by 74 in the number of plant.
entire/whole
cytoplasm almost fills the entire cell. (any word that means the same or similar to entire or whole)
Answer:
C...
Vitamin D-- Lack of sunlight--Brittle bones(rickets)
B...
Iron ---- Lack of sunlight, fish and eggs --- Anaemia
Leptin is a chemical messenger which is secreted by fat cells that act as an appetite suppressant.
Leptin is a hormone of energy expenditure. It is made of adipose cells and helps to regulate energy balance by way of inhibiting hunger.
Both hormones they act as receptors in the arcuate nucleus of the hypothalamus. When someone is obesity, the sensitivity to leptin decreases.
