Answer:
Answer is B. Positive feedback regulation can generate an abrupt, all-or-none response in which the cell moves from ignoring a signal to responding to it very strongly.
Explanation:
Positive feedback can be described as an example of feedback, which is a natural mechanism that amplifies the action of a system.
It can be better be explained further, as a situation whereby the blood pressure decreases and the response of the body also makes or causes the blood pressure to decrease the more.
Other examples of a positive feedback also include blood clotting, ripening of fruits , uterus muscle contraction, resulting to the stretching of the uterus during pregnancy.
Answer:
T-cells and B-cells.
Explanation:
B-cells and T-cells are also called lymphocytes. “The primary lymphoid tissues in the initial generation of B- and T-lymphocytes are the bone marrow and the thymus.”
Answer:
Explanation:
Firstly; the missing figure is attached in the diagram below.
Ligand A and ligand B can cause identical cellular responses in a cell due to the fact that there are cross-linkages in the various enzymatic activities taking place in the receptor proteins located in the plasma membrane.
This implies that a particular compound in the cell signaling in eukayortes can be triggered by some mechanism. For example as we can see right in the diagram; The ligands can trigger the G-protein in the plasma membrane which result into increase in cAMP.
In addition to that; IP3/DAG pathway can signal and trigger the calcium influx moving into the cytoplasm from the endoplasmic reticulum
0.72 is correct. I saw previous questions asking the same thing and people were saying 3.56 AU is correct IT IS NOT 3.56 THE CORRECT ANSWER IS 0.72 thank you
I believed that the correct answer is B