CELL STRUCTURES AND FUNCTION
BIO MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Enzymes function best at a specific temperature.
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The body needs to be warm to prevent hypothermia.
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The body is kept relatively warm to prevent too much enzyme action.
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There is no connection between the two statements.
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Detailed explanation-1: -The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these two statements? Enzymes function best at a specific temperature.
Detailed explanation-2: -As temperature increases, enzyme reactions increase. But if the temperature gets too high, the enzyme stops working. That’s why a high fever can disrupt bodily functions.
Detailed explanation-3: -Answer and Explanation: The correct answer is (c) because they allow reactions to occur at body temperature. Enzymes catalyze chemical reactions, which means that they make chemical reactions occur rapidly at body temperature.
Detailed explanation-4: -There is a certain temperature at which an enzyme’s catalytic activity is at its greatest (see graph). This optimal temperature is usually around human body temperature (37.5 oC) for the enzymes in human cells.
Detailed explanation-5: -Like all other catalysts, enzymes are characterized by two fundamental properties. First, they increase the rate of chemical reactions without themselves being consumed or permanently altered by the reaction. Second, they increase reaction rates without altering the chemical equilibrium between reactants and products.