Question

Plants like sugarcane and sorghum have indigenously developed system to overcome the loss by photorespiration as they are ......... plants.

• A. $C_4$
• B. $C_3$
• C. $C_2$
• D. $C_1$

Answer 1

The correct option is A $C_4$

• C4 plants use carbon fixation to achieve photosynthesis similarly to C3 plants, but their method has evolved more recently, and thus, has a few advantages over C3 plants.
• The main disadvantage of C3 plants is that in hot or dry climates, Rubisco uses up oxygen which leads to photorespiration.
• Hence, Plants like sugarcane and sorghum have indigenously developed system to overcome the loss by photorespiration as they are C4 plants.
• So, the correct answer is 'C4'.