Q.

How C4 plants are capable of photosynthesis with no apparent photorespiration?

Easy

Unlock the Full Solution and Master the Concept

Get a detailed solution and exclusive access to our masterclass to ensure you never miss a concept

By Expert Faculty of Sri Chaitanya

Because active site of RuBisCO is exposed to more CO2 and less or no oxygen

Because they are adapted to cold and humid environmental conditions

Because they lack peroxisomes in their cells

Because of absence of ATP and NADPH+H+ molecules

answer is 1.

(Detailed Solution Below)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Oxygen evolving site is different from the site where RuBisCO is present.Light reactions, during which oxygen is evolved, operate in chloroplasts of mesophyll cells. RuBisCO is present only in stroma of those chloroplasts which are found in bundle sheath cells where Calvin cycle is operational. Bundle sheath cells have thick walls impervious to gaseous exchange and no intercellular spaces. Therefore, no exchange of oxygen gas takes place between mesophyll and bundle sheath cells. As a result, C4 plants are capable of photosynthesis with no apparent photorespiration.

Choose your Grade and Exam

Connect with our

Expert Counsellors

access to India's best teachers with a record of producing top rankers year on year.

+91

We will send a verification code via OTP.