Both "depends upon the binding of that substance to a specific site on the membrane protein" and "depends upon movement of proteins from one side of the membrane to the other" are correct.
The saturation effect prevents statement 2 from being true.
A because heat is a form of energy and the coffee is heating up the ice cube and it is not D because it is not releasing any byproducts when the ice cube is melted
The Earth turns on its axis every day; it orbits the sun, just like all the other planets in our Solar System. You can cross out D and A, obviously. Which leaves us with answers B and C. Now, C says that the Earth turns clockwise, which is false; when viewed from space, they determined it turned counter-clockwise, which leaves us with B. Hope this helped
A neutron is one of the three subatomic particles, between electrons and protons it has no charge since it is neutral.