| A | B |
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| WHAT is a chemical reaction? | A chemical reaction is a process that changes one set of chemicals into another set of chemicals. |
| WHAT role does an enzyme serve in chemical reactions? | An enzyme speeds up the rate of a chemical reaction. |
| What is an enzyme? | Enzymes are proteins that acts as a biological catalyst. |
| IDENTIFY an enzyme example and DESCRIBE what the role of that enzyme is? | Lactose, maltase, carbonic anhyardase are all examples of enzymes. Lactase breaks up lactose into glucose and galactose. |
| WHY is a lock and key used to describe the way an enzyme works? | Enzymes are so specific because of the shape of the active site generaly fits the shape of its substrate very well, like a lock fits a key. |
| WHAT are vitamins? | Vitamins are organic molecules needed by the body to help perform important chemical reactions. |
| WHAT are minerals? | Minerals are inorganic nutrients the body usually needs in small amounts. |
| IDENTIFY four of the fourteen essential vitamins needed to maintain human health. | Four vitamins are Vitamin A , Vitamin K, Vitamin D, Vitamin C and Vitamin E. |
| IDENTIFY four of the nine essential minerals needed to maintain human health. | Four of the nine essential minerals are iron, calcium, magnesium and chlorine. |
| How are vitamins involved in enzymatic reactions? | Vitamins act as coenzymes and help with chemical reactions. |
