Reproductive system and it's functions
Answer:
A
Explanation:
photosynthesis converts light energy to chemical energy and not the other way round
product of photosynthesis is oxygen and energy
photosynthesis cannot occur is light energy is not available
Answer: a membrane containing a larger proportion of unsaturated fatty acids
Explanation:
No. The trends go in different directions. CO2 goes up more than the volcanoes. It is the general trend that makes a difference compared to the fluctuations.
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
