CO2 is utilized for the carboxylation of RuBP inside the bundle sheath cells of
1. Maize, Sorghum
2. Tomato, Bell pepper
3. Cacti, Sedum
4. Rice, wheat
"Kranz anatomy" is present in
1. All photosynthetic plants
2. Only C3 plants
3. Only succulent plants
4. Only C4 plants
The evolution of C4 photosynthetic system is probably one of the strategies for
1. Maximising the availability of CO2 and minimising the loss of H2O
2. Minimising the loss of O2 and maximising the avilability of H2O
3. Minimising the availability of CO2 and maximising the loss of H2O
4. More than one option is correct
There is a clear division of labour within the chloroplast. The membrane system is responsible for
1 Trapping of light energy
2 Conversion of CO2 into glucose
3 Consumption of ATP and NADPH
4 Providing site for dark reaction
Choose the incorrect statement regarding early experiments on photosynthesis
1. Priestley experiment revealed the essential role of air in the growth of a green plant
2. Ingenhousz showed that sunlight is essential to the plant processes
3. It is green parts of the plants that can release oxygen
4. Von Sachs provided evidence for production of carbon dioxide when plants grow
At low light condition, which of the following plants respond to high conditions ?
1. Only plants
2. Only plants
3. Neither plants
4. Both plants
What is the primary acceptor of CO2 in dark reaction?
1. Ketose sugar
2. Aldose sugar
3. Fatty acid
4. Sucrose
Melvin Calvin used ------- radioactive in-----studies for the discovery of the first CO2 fixation product.
1. 14C , Fungal photosynthesis
2. 14C , Algal photosynthesis
3. 15N , Fungal photosynthesis
4. 15N , Algal photosynthesis
During chemiosmosis, the transport of proton across the membrane occurs through-
1. Active Transport
2. Facilitated Diffusion
3. Diffusion
4. both 1 and 2
Which of the following acts as a transmembrane channel?
1. F0 of ATPase
2. F1 of ATPase
3. PS I
4. PS II