Biosynthetic Phases of Photosynthesis

Select the incorrect statement

In C₄ plants, the first carbon dioxide acceptor is

Statements about the effect of ${\mathrm{CO}}_2$ concentration, temperature and light intensity on the rate of photosynthesis in $\mathrm{C}3$ and $\mathrm{C}4$ plants are given. Based on the statements the correct option is
i) At high ${\mathrm{CO}}_2$ concentrations, $40°\mathrm{C}$ and saturated light, the photosynthetic rates of $\mathrm{C}3$ and $\mathrm{C}4$ plants are similar.
ii) $\mathrm{C}4$ plants do not reach saturation levels even at $10\%$ of the full intensity of sunlight.
iii) At twice the levels of ${\mathrm{CO}}_2$ concentration $(~700\mathrm{ppm})$, the net photosynthesis in $\mathrm{C}3$ plants is higher than that of $\mathrm{C}4$plants.
iv) The net CO₂ uptake in a C3 shade plant is equivalent to C4 plant under light saturation conditions.

According to Dr. Arnon, a substance present in chloroplast that acts as H-acceptor is _________.

The first step in dark reaction of photosynthesis is

The entire reactions of ${\mathrm{C}}_4$ pathway takes place in

Which of the statements is not true of the ${\mathrm{C}}_4$ pathway

In sugarcane plant ${}^{14}\mathrm{CO}_2$ is fixed in malic acid, in which the enzyme that fixes ${\mathrm{CO}}_2$ is

$...........$are $\mathrm{CAM}$ plant

Match the plants in Column I with their features listed in the Column II, III and IV.

Choose the correct combination.

What is the primary acceptor of CO₂ in C₄ plants?

Two independent experiments related to photosynthesis were conducted, one with ${}^{18}\mathrm{O}$-labelled water (experiment $\mathrm{P}$) and the other ${}^{14}\mathrm{C}$-labelled ${\mathrm{CO}}_2$ (experiment $\mathrm{Q}$). Which one of the following options lists the first labelled products in experiments $\mathrm{P}$ and $\mathrm{Q},$ respectively?

What is the first stable compound formed in a Calvin cycle?

What is the primary acceptor of ${\mathrm{CO}}_2$ in ${\mathrm{C}}_3$ plants?

In photosynthetic carbon-fixation, which one of the following reacts with ${\mathrm{CO}}_2$

Assertion (A): ${\mathrm{C}}_4$ plants show greater productivity of biomass than ${\mathrm{C}}_3$ plants.

Reason (R): Leaves of ${\mathrm{C}}_4$ plants have "Kranz anatomy" where bundle sheath cells lack Rubisco enzyme. As a result, ${\mathrm{C}}_4$ plants lack photorespiration.

The correct answer is

The amount of ${\mathrm{CO}}_2$ and ${\mathrm{H}}_2\mathrm{O}$ absorbed to produce $180 \mathrm{g}$ of glucose are

One of the following combinations is correct with reference to photosynthesis

In Calvin cycle interconversion of $\mathrm{G}-3-\mathrm{P}$ and $\mathrm{DHAP}$ is catalysed by

How many $\mathrm{ATP}$ and $\mathrm{NADPH}$ molecules are required for the synthesis of $6$ molecules of glucose in photosynthesis?