Answer: Nerve cells and muscle cells
Explanation:
The nerve cells and the muscles cells of the body plays important role in the conduction of the signals.
Calcium ion helps in the signal conduction so its role is majorly important in nerve cells and muscle cells.
The calcium signalling can be defined as the use of calcium ions for the cellular signalling, it enters the cytoplasm and exerts allosteric regulatory enzymes in many of the proteins and enzymes.
This derives many intracellular processes and signal transmission is one of the following.
Plate tectonics
Explanation:
Natural events primarily responsible for the destruction and creation of landforms on earth are called plate tectonics.
They are simply moving lithospheric plates on the asthenosphere.
- There are three types of plate boundaries which are convergent, divergent and transform.
- A convergent margin is destructive margin where two plates collides against one another. The denser plate gets subducted. Sometimes they have same density and they both get obducted creating some towering peaks where plates are being crushed.
- A divergent margin is a constructive margin. It is a spreading center where new magma erupts to the surface.
- At a transform margin, plates slides past one another.
We can vividly see that plate movement creates and destroys land forms.
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Answer:
d. increases PFK activity, decreases FBPase activity
Explanation:
Fructose-2,6-bisphophate is formed by the phosphorylation of fructose-6-phosphate catalyzed by phosphofructokinase-2, PFK-2.
Fructose-2,6-bisphophate functions as an allosteric effector of the enzymes phosphofructokinase-1, PFK-1 and fructose-1,6-bisphosphatase, FBPase.
Fructose-2,6-bisphophate has opposite effects on the enzymes, PFK-1 and FBPase. When it binds to the allosteric site of the enzyme, PFK-1, it increases the enzymes's activity by increasing its affinity for its substrate fructose-6-phosphate and reduces its affinity for its allosteric inhibitors ATP and citrate. However, when it binds to FBPase, it reduces its activity by reducing its affinity for glucose, its substrate
Answer: A) Andaman Island Explanation: India’s only active volcano is located at the Andaman and Nicobar Islands.
Answer : The value of the equilibrium constant is,
Explanation :
The given main reaction is:
The intermediate reactions are:
;
;
;
Now we are adding all the equation, we get:
...........(1)
The equilibrium constant expression will be:
Now we are dividing equation 1 by 2, we get:
...........(1)
The equilibrium constant expression will be:
Now put all the given values in this expression, we get:
Thus, the value of the equilibrium constant is,