ACTIVTY 4 Enzymes, enzymes, enzymes! • Directions: Complete the following sentences using the word in the box below, function sequence catalyst amino acid type of amino acids catalyzed 1. Enzymes are biological that speed up chemical reaction in living organisms. 2. Enzymes are protein molecules, which are made up of long chains of are different in each protein, so they produce enzymes 3. The and with many different shapes and functions. 4. The shape of an enzyme is a very important to its
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Answer:
1.A substance that speeds up a chemical reaction—without being a reactant—is called a catalyst. The catalysts for biochemical reactions that happen in living organisms are called enzymes. Enzymes are usually proteins, though some ribonucleic acid (RNA) molecules act as enzymes too.
2.Enzymes are proteins that have the ability to bind substrate in their active site and then chemically modify the bound substrate, converting it to a different molecule — the product of the reaction. Substrates bind to enzymes just like ligands bind to proteins.
3.The cell's structure has a lot to do with it. Notice in the representation of skin that there are different layers. These layers have different functions. Also notice the difference in cell shape within the different layers. The structure-function relationship is a central theme running throughout biology.
4.The shape of an enzyme is very important because it has a direct effect on how it catalyzes a reaction. An enzyme's shape is determined by the sequence of amino acids in its structure, and the bonds which form between the atoms of those molecules.
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