Explain what takes place in each step of the diagram

The enzyme is combining with substrate in the first step and forming enzyme substrate complex in the next step.

Enzyme:

They are bio-catalyst that either combine or breakdown molecules. They reduce the energy requirement for reaction.

Here,

Hence, we can say that enzyme is combining with substrate  in the first step and forming enzyme-substrate complex in the next step.

To know more about enzymes, refer to the link:

link

The given image is showing the interaction of the enzyme and its substrate.

In the first part of the image, the enzyme and substrate are not bind together. They are present in close proximity. The enzyme shown in the picture have a site for the attachment of the substrates.

In the next picture, the interaction of the enzyme and the substrate has occurred, which resulted in the formation of the enzyme substrate complex. Hence, the given picture shows the interaction of an enzyme with the substrates.

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