Question

1. draw a generalized graph of the action of an enzyme from the human body as the temperature changes from 0°c to 100°c. mark the temperature of optimal enzyme activity.
2. what most likely happens to the rate of reaction of a human enzyme when the temperature is increased gradually from 10°c to 30°c. explain your answer.
3. what most likely happens to the rate of reaction of a human enzyme when the temperature is increased gradually from 40°c to 90°c. explain your answer.
4. what is the optimal temperature for the functionality of a human enzyme?

Explanation:

Step1: Understand enzyme - temperature relationship

Enzymes in the human body have an optimal temperature for maximum activity. Below this temperature, activity increases with temperature rise. Above it, enzymes denature and activity drops.

Step2: Answer question 21

As temperature increases from 10°C to 30°C, the rate of reaction of a human enzyme increases. This is because increased temperature provides more kinetic energy to the enzyme - substrate system, increasing the frequency of effective collisions.

Step3: Answer question 22

When temperature increases from 40°C to 90°C, the rate of reaction of a human enzyme decreases. This is because above the optimal temperature (around 37°C for human enzymes), the high temperature causes the enzyme's structure to denature, disrupting its active - site shape and reducing its ability to bind to substrates.

Step4: Answer question 23

The optimal temperature for the functionality of a human enzyme is approximately 37°C, which is the normal body temperature of humans.

Answer:

1. The rate of reaction increases because increased temperature provides more kinetic energy for effective collisions.
2. The rate of reaction decreases because high temperature causes enzyme denaturation.
3. Approximately 37°C