MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Michaelis-Menten Model

Enzyme activi...

Question

Enzyme activity is highest in the temperature range of:

A

0 - 15^{o}

C

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

15 - 25^{o}

C

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

25 - 45^{o}

C

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

remain same in all

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $25 - 45^{o}$ C

Enzyme activity is highest in the temperature range of $25 - 45^{0} C$ . If there is more temperature the protein present in the enzyme will be denatured and its activity is lost.
Hence option C is correct.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Enzymes work at optimum temperature. Over a range

0 - 40^{\circ} C

, what would happen to the rate of enzyme controlled reactions for every

10^{\circ} C

rise in temperature?

Q. A metal cylinder of mass 0.5 kg is heated electrically by a 12 W heater in a room at

15^{o}

C. The cylinder's temperature rises uniformly to

25^{o}

C in 5 min and finally becomes constant at

45^{o}

C. Assuming that the rate of heat loss is proportional to the excess temperature over the surrounding, find the rate of loss of heat of the cylinder to surroundings at

20^{\circ}

Select the correct statements.
(i) Between temperature range

0 - 25^{o}

C, rate of the respiration doubles for every

10^{o}

C rise in temperature.
(ii) Cytochromes are iron-porphyin compounds.
(ii) Respiratory rate of wounded or injures plant parts generally decreases.

Q. A first order reaction,

A \to B,

requires activation energy of

70 k J m o l^{- 1}

. When a solution of A was kept at

25^{\circ} C

for 20 minutes, 25 percent decomposition took place. What will be the percent decomposition in the same time if solution maintained at

40^{\circ} C

? Assume that activation energy remains constant in this range of temperature.

Q. A body cools at the rate of

{0.5}^{o}

/

minute when it is

25^{o}

C above the surroundings. Calculate the rate of cooling when it is

15^{o}

C above the same surroundings.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Enzymes

BIOLOGY

Watch in App

explore_more_icon

Explore more

Michaelis-Menten Model

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon