EXPERT PLS SEND ANSWER URGENTLY!!!
Solution
The C4 plants are more efficient in carbon dioxide fixation than C3 plants. In C3 plants, the carbon dioxide fixation occurs only in mesophyll cells. But in C4 plants,both the mesophyll cells as well as bundle sheath cells contain chloroplasts and hence carbon fixation occurs twice.
Thus, the correct answer is 2:1
The C4 plants are more efficient in carbon dioxide fixation than C3 plants. In C3 plants, the carbon dioxide fixation occurs only in mesophyll cells. But in C4 plants,both the mesophyll cells as well as bundle sheath cells contain chloroplasts and hence carbon fixation occurs twice.
Thus, the correct answer is 2:1