Answer: C). prolong the effect of epinephrine by maintaining elevated cAMP levels in the cytoplasm
Explanation: In the epinephrine pathway, binding of epinephrine to its receptor triggers a conformational change in the receptor and the interaction of the receptor with its associated Gs protein. This interaction causes the replacement of GDP bound to Gs protein with GTP thus activating the Gs protein. The activation of the Gs protein causes the alpha subunit of the Gs protein to dissociate and move to adenylyl cyclase, another membrane protein in the pathway. The association of the alpha subunit of the Gs protein with adenylyl cyclase activates adenylyl cyclase which in turn catalyzes the synthesis of cyclic AMP (cAMP) a second messenger. cAMP is quickly degraded to 5'-AMP by an enzyme phosphodiesterase. Inhibition of the activity of phosphodiesterase will increase the half life and the cytoplasmic level of cAMP thus potentiating the action of epinephrine.
Answer:
See explanation.
Explanation:
During mitosis, the cell reproduces itself and becomes two cells. Each cell is an exact copy with the same number of chromosomes as the original cell. The cell becomes two cells, each with 36 chromosomes.
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Water pollution occurs when a body of water is adversely affected due to the addiction of large amounts of materials to the water.
Some advantages and disadvantages of growing tall as a plant are as follow: Tall, Growing tall can lead to larger amounts of wind pressure on its stalk so it can not stand up easily. More birds and other flying insects will be driven to land on it and feed on it. It also has less protection from things around it. Some advantages are it will get sun easier, it will be able to spread its offspring easier and it will not get trampled. Some advantages and disadvantages of growing short are as follows: Short, Growing short can lead to less animals able to feed on your fruit and spread your seed. They can be trampled easier and move things tend to hide in its flourish of leaves. It gets eaten by more since it is easier to reach. Some advantages, it will not have very much wind blowing on it at all times, it has protection from other elements because it is close to the ground.
