Enzymes are proteins catalysts and speed up reactions by lowering the energy needed to start them. Catalysts speed up the reactions in the cells so that they can happen in a fraction of a second, making them happen more quickly. Without catalysts, most cell reactions would not happen even over long periods of time.
Inner core was found to be solid after observing the motion of P waves.
Explanation:
Seismologist Inge Lehmann, studied the seismic waves of an earthquake and discovered about inner core in the mantle layer of Earth. She States that there is a boundary of discontinuity between the outer and inner core of Earth.
She studied the travel of secondary and primary waves during an earthquake and how it flows at different shells of Earth's layer which helped her in finding about the inner core of mantle. She observed that the inner core is a solid layer inside the molten layer of outer core
Plasma, water, salt, protein, platelets
