Peroxidase is an enzyme that breaks down hydrogen peroxide in cells. it accomplishes this because of its structure. what part of the enzyme is involved in catalytic activity

Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials

When analyzing tree rings, what do scientists assume a thin ring indicates?

What molecule does hemoglobin decay into over time