Topic 1 - Rate Of Calculations For Enzyme Activity

Question 1

What is the formula used for rate calculations in enzyme activity?

Answer 1

Rate = Change / Time

This formula helps determine how fast an enzyme is working.

Question 2

In the context of enzyme activity, what does ‘Change’ refer to?

Answer 2

The change in the substance being measured, specifically the enzyme

In the given example, it refers to the amount of protein converted.

Question 3

What does ‘Time’ represent in rate calculations?

Answer 3

The time taken for the change to occur

This is essential for calculating the rate of reaction.

Question 4

What type of enzyme is a protease?

Answer 4

An enzyme used to break down proteins

Proteases play a key role in protein digestion.

Question 5

If 5g of protein is converted in 30 minutes, what is the rate of reaction?

Answer 5

Rate = 5g / 30 minutes = 0.1667 g/min

This can also be expressed as 5g / 0.5 hours = 10g/hour.

Question 6

Fill in the blank: The rate of enzyme activity can be calculated using the formula Rate = _______.

Answer 6

Change / Time

Question 7

True or False: The rate of reaction is calculated by dividing the change in substrate by the time taken for that change.

Answer 7

True

Question 8

What is the unit of measurement commonly used for rate calculations in enzyme activity?

Answer 8

grams per minute (g/min) or grams per hour (g/hour)

Depending on the context, either unit can be used.

Question 9

What is the rate at which the enzyme is catalyzing the reaction?

Answer 9

10g / hour

Question 10

What factors may change the enzyme’s catalytic rate?

Answer 10

Temperature, pH, substrate concentration

Question 11

Fill in the blank: The enzyme catalyzes reactions at a rate of _______.

Answer 11

10g / hour

Question 12

True or False: The enzyme’s catalytic rate is constant regardless of environmental conditions.

Answer 12

False