The Lock-and-key mechanism was first proposed by Emil Fischer which described as the enzymatic reactions whereby an enzyme with a single substrate binds temporarily to form a substrate complex.
The lock-and-key mechanism is usually associated with the complementary shapes of an enzyme with a single substrate, wherein the lock that is being referred to is the enzyme and the substrate is the key. One right sized substrate (key) fits into the active site (key hole) of the enzyme (lock).
The active site which is mentioned above is structurally complementary to the substrate. This is the temporary binding site on the enzymes. Just like a lock and key, the enzyme as the lock and the substrate as the key is said to fit together.
Answer:
the frog won't have nothing to eat then they will die and the snake won't eat the frog.
Explanation:
The correct answer is this: ZEITOUN SPOT FISH SWIMMING IN THE FLOOD WATER.
The passage given above was drawn from an account of Hurricane Katrina by Dave Eggers. In the passage, he described the hurricane experience as an apolycapses, thus likening the event to the great destruction that will befall the earth at the end of the world as recorded in the bible in the book of Revelation. The hurricane was so bad that those animals that can not fly were carried away in the flood, even the fish inside the water were affected.
In doing these exercises, this is likely to increase the response of the parasympathetic nervous system in which results of making the heart slow and as well as the respiration rate with less muscular tension. The parasympathetic nervous system is the one responsible for conserving energy that makes the heart rate slower, increase the activity of the gland and intestinal activity and as well as relaxing the muscles.
