Question

A model of the activity of an enzyme and its effects on the substrate is shown here. Based on the actions shown in the
model, which enzyme and role could be depicted in the image? Select ALL that apply.

Answer 1

Answer:

A. The enzyme could be sucrase, which breaks Sucrose down into fructose and glucose

B. The enzyme could be lactase, which breaks down lactose sugar into glucose and galactose.

C. The enzyme could be catalase, which breaks down hydrogen peroxide into oxygen gas and water.

Explanation:

Answer 2

Based on the substrates and products of each ofbthe enzymatic reactions, the enzymes involved are:

• Sucrase which catalyzes the breakdown of sucrose to glucose and fructose
• Lactase which catalyzes the breakdown of lactose to glucose and galactose
• Catalase which catalyzes the breakdown of hydrogen peroxide into oxygen and water.

What are enzymes?

Enzymes are organic molecules which catalyze biological reactions in living organisms.

Enzymes in biological systems are name after a product they form or a substrate they catalyze.

Based on the substrates and products:

• Sucrase catalyzes the breakdown of sucrose to glucose and fructose
• Lactase catalyzes the breakdown of lactose to glucose and galactose
• Catalase catalyzes the breakdown of hydrogen peroxide into oxygen and water.

Therefore, the substrates and products of the enzyme determines its name.

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