Enzymes are biological catalysts. ... Thus enzymes speed up reactions by lowering activation energy. Many enzymes change shape when substrates bind. This is termed "induced fit", meaning that the precise orientation of the enzyme required for catalytic activity can be induced by the binding of the substrate.on:
The correct answer is (a) The white salt crystals have a high albedo.
A substance appears white in color because it reflects most of the light falling on it. The term albedo shows that most of the sunlight falling on the particular area are reflected back leaving behind the salt of white color. Badwater Basin in Death valley is the hottest, driest and brightest area. Hence, the valley appears to be white in color because of the salt crystals that reflects back the maximum light falling on it.
B. Cyclones is the correct answer because super cells are clouds, as well as wall clouds, and a vortex is another, less powerful tornado.
In the movement of sperm tail plays an important role due to which sperm is able to move.
Sperm move to the uterine tube through uterine contractions and the energy of their own flagella.
Motility of sperm is also depend upon various metabolic pathways and the mechanism of regulation.
<h3>What is causes sperm to move?</h3>
The structure of sperm contains tail which have large numbers of protons channels which are known as Hv1 channels that respond to changes in pH and concentration of zinc outside the cell.
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