OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Enzymes function best at a specific temperature
|
|
|
The body needs to be warm to prevent hypothermia.
|
|
|
The body is kept relatively warm to prevent too much enzyme action
|
|
|
There is no connection between the two statements.
|
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: -This optimal temperature is usually around human body temperature (37.5 oC) for the enzymes in human cells. Above this temperature the enzyme structure begins to break down (denature) since at higher temperatures intra-and intermolecular bonds are broken as the enzyme molecules gain even more kinetic energy.
Detailed explanation-3: -The perfect conditions Most enzymes in the human body work best at around 98.6-degrees Fahrenheit (F) (37°C), which is the body’s typical temperature. At lower temperatures, they may still work but much more slowly.
Detailed explanation-4: -Temperature: Enzymes work best when your body temperature is normal, about 98.6°F (37°C). 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-5: -Factors affecting enzyme activity Temperature: Raising temperature generally speeds up a reaction, and lowering temperature slows down a reaction. However, extreme high temperatures can cause an enzyme to lose its shape (denature) and stop working. pH: Each enzyme has an optimum pH range.