Photosynthesis in Higher Plants

Select the correct sequence of experiments that led to a gradual understanding of photosynthesis in green plants.

Which of the following statements regarding photorespiration are correct?
(a) Do not occur in C 3 plants
(b) $\quad \mathrm{CO}_2$ is consumed and $\mathrm{O}_2$ is generated
(c) Phosphoglycolate is formed
(d) No synthesis of ATP and NADPH
...

Which pigment has absorption peak at 700 nm in the photosynthetic reaction centre PS I (P700)?

Photorespiration reaction catalyzed by RuBisCo is shown below:
$\mathrm{RuBP}+\mathrm{O}_2 \rightarrow$ 3-Phosphoglycerate +X . Identify " X " from the given options:

How many turns of Calvin cycle are required for the formation of three molecules of glucose?

How many ATP and NADPH molecules are required to make one molecule of glucose through the Calvin pathway?

The enzyme required for carboxylation in the Calvin cycle is

Find the incorrect statement(s) about photosynthesis from the following:
A. The water splitting complex is associated with PSI.
B. $\mathrm{C}_4$ plants use the $\mathrm{C}_3$ pathway of $\mathrm{CO}_2$ fixation as the main biosynthetic pat...

Match List-I with List-II

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
...

Which of the following statements about RuBisCO is true?

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

Which one of the following products diffuses out of the chloroplast during photosynthesis?

Which of the following are required for the light reaction of Photosynthesis?
A. \(\mathrm{CO}_2\)
B. \(\mathrm{O}_2\)
C. \(\mathrm{H}_2 \mathrm{O}\)
D. Chlorophyll
E. Light
Choose the correct answer from the options given below:

How many molecules of ATP and NADPH are required for every molecule of \(\mathrm{CO}_2\) fixed in the Calvin cycle?

Given below are two statements:
Statement I: In \(\mathrm{C}_3\) plants, some \(\mathrm{O}_2\) binds to \(\mathrm{RuBisCO}\), hence \(\mathrm{CO}_2\) fixation is decreased.
Statement II: In \(\mathrm{C}_4\) plants, mesophyll cells show very...

Which of the following are required for the dark reaction of photosynthesis?
A. Light
B. Chlorophyll
C. \(\mathrm{CO}_2\)
D. ATP
E. NADPH
Choose the correct answer from the options given below:

Which out of the following statements is incorrect?

Given below are two statements :
Statement I : RuBisCO is the most abundant enzyme in the world.
Statement II : Photorespiration does not occur in C\(_4\) plants.
In the light of the above statements, choose the most appropriate answer from...

Match List - I with List - II.

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:norm...

The reaction centre in PS II has an absorption maxima at

How many ATP and NADPH2 are required for the synthesis of one molecule of Glucose during Calvin cycle?

Identify the correct statements regarding chemiosmotic hypothesis:
(a) Splitting of the water molecule takes place on the inner side of the membrane.
(b) Protons accumulate within the lumen of the thylakoids.
(c) Primary acceptor of electro...

When one CO2 molecule is fixed as one molecule of triose phosphate, which of the following photochemically made, high energy chemical intermediates are used in the reduction phase?

Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:

Given below are two statements:
Statement I : The primary CO2 acceptor in C4 plants is phosphoenolpyruvate and is found in the mesophyll cells.
Statement II : Mesophyll cells of C4 plants lack RuBisCo enzyme.
In the light of the above stat...

Which of the following statements is incorrect?

The first stable product of CO2 fixation in Sorghum is

In light reaction, plastoquinone facilitates the
transfer of electrons from

The oxygenation activity of RuBisCo enzyme
in photorespiration leads to the formation of

Which of the following is not a product of light
reaction of photosynthesis?

Phosphoenol pyruvate (PEP) is the primary CO2 acceptor in

With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?

The process which makes major difference between C3 and C4 plants is

In a chloroplast the highest number of protons are found in

Emerson's enhancement effect and Red drop have been instrumental in the discovery of

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 utilisation. In which of the following physiological g...

Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using one of following options.

Water soluble pigments found in plant cell vacuoles are

In photosynthesis, the light-independent reactions take place at

Chromatophores take part in

A process that makes important difference between C3 and C4 plants is

The correct sequence of cell organelles during photores piration is

Read the following four statements (A \(-\) D). phosphorylation involve uphill transport of protons across the membrane.
(A)  Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane. ...

CAM helps the plants in

In kranz anatomy, the bundle sheath cells have

Which one of the following is essential for
photolysis of water?

PGA as the first CO2 fixation product was discovered in photosynthesis of

C4 plants are more efficient in photosynthesis than C3 plants due to

Kranz anatomy is one of the characteristics of the leaves of

Read the following four statements, (i), (ii), (iii) and (iv) and select the right opening having both correct statement.
Statements :
(i)    Z scheme of light reaction takes place in presence of PSI only.
(ii)   Only PSI is functional in ...