Photosynthesis in Higher Plants

Observe the given figure. Identify the different stages labelled with alphabets by selecting the correct option.

The reaction centre in PS II has an absorption maxima at

A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the…

In order to generate a crop variety with C 4 carbon fixation, a researcher expressed PEPcase enzyme from C4 pathway in leaves of the C3 plant. However, the modified C3 plant did not show carbon fixation efficiency as…

Identify the correct statements about thylakoid membranes that make those the sites of light-dependent reaction in photosynthesis. (i) Carbon dioxide and water can diffuse through the thylakoid membrane. (ii)…

Statements about the effect of $\mathrm{CO}_2$ concentration, temperature and light intensity on the rate of photosynthesis in $C_{3}$ and $C_{4}$ plants are given. Based on the statements the correct option is i) At…

Choose the correct statement(s) from the following regarding light reactions taking place in the chloroplast. (i) The $\mathrm{H}^{+}$ion concentration of thylakoid lumen is higher than stroma. (ii) Flow of…

Assertion: In $\mathrm{C}_3$ cycle, the first stable compound is $3 \mathrm{C}$ compound. Reason : In $\mathrm{C}_4$ plants Calvin cycle is absent.

Assertion : Photorespiration is found in all plants. Reason: In $\mathrm{C}_4$ plants, first $\mathrm{CO}_2$ fixation product is formed in bundle sheath cells.

Assertion : CAM plants lack structural compartmentation of leaf as found in $\mathrm{C}_4$ plants. Reason : Stomata of CAM plants are open during the day.

The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triphosphate (ATP) is formed because

The first stable product of Calvin cycle is