What is true about enzymes? HeckonbKo orgeros: Enzymes can be classified to the seven classes Enzymes use hydrophobic interactions exclusively in binding substrates Enzymes have great catalytic power Enzymes can be simple and complex

## Step 1<br />The problem presents four statements about enzymes and asks which are true. Let's analyze each one:<br /><br />## Step 2<br />The first statement is "Enzymes can be classified into seven classes". This is not accurate. Enzymes are generally classified into six major classes: oxidoreductases, transferases, hydrolases, lyases, isomerases, and ligases.<br /><br />## Step 3<br />The second statement is "Enzymes use hydrophobic interaction exclusively in binding substrates". This is also not accurate. While hydrophobic interactions can play a role in substrate binding, they are not the only type of interaction that enzymes use. Enzymes can use a variety of interactions, including hydrogen bonding, ionic interactions, and Van der Waals forces, to bind substrates.<br /><br />## Step 4<br />The third statement is "Enzymes have great catalytic power". This is true. Enzymes are known for their ability to speed up chemical reactions, which is why they are often referred to as biological catalysts.<br /><br />## Step 5<br />The fourth statement is "Enzymes can be simple and complex". This is also true. Enzymes can be simple, consisting of a single polypeptide chain, or complex, consisting of multiple subunits.