List of top Botany Questions on Photosynthesis in higher plants

Match the following RNA polymerase with their transcribed product:

Select the correct option from the following:

According to photosynthesis equation to produce 180g glucose and 193g oxygen, plant will absorb ``X'' g of carbondioxide and ``Y'' g water and consume ``Z'' K.cal of solar energy. `X', `Y' and `Z' are respectively

Choose the correct statements among the following
I. Proton gradient across the membrane decreases due to cyclic flow of electrons between PQ and cytochrome b.
II. NADP reductase enzyme is located on the stroma side of the membrane.
III. PQ removes electron from the stroma

Choose the correct statement among the following
I. Wheat $\rightarrow$ Pusa komal $\rightarrow$ hill bunt
II. Cauliflower $\rightarrow$ Pusa Shubra $\rightarrow$ Black rot
III. Chilli $\rightarrow$ Pusa Sadabahar $\rightarrow$ TMV
IV. Brassica $\rightarrow$ Pusa Swarmin $\rightarrow$ Bacterial blight

Phenomenon that describe the first action spectra of photosynthesis:

I. Illumination of Cladophora
II. Detection of O$_2$ release using anaerobic bacteria
III. Accumulation of aerobic bacteria in red and blue light
IV. Cladophora in suspension of anaerobic bacteria

Arrange the intermediate compounds of RUBP regeneration in correct sequence:

I. Ribulose-5-Phosphate
II. Erythrose-4-Phosphate
III. Fructose-6-Phosphate
IV. Sedoheptulose-7-Phosphate
V. Ribose-5-Phosphate
VI. Fructose-1,6-Bisphosphate

Assertion (A): Algae will increase the level of dissolved oxygen in the immediate environment.
Reason (R): They form the food for aquatic animals.
Identify the correct option from the following:

Choose the correct statements among the following

I. Joseph Priestley (1770): Showed that plants have the ability to take CO₂ from the atmosphere and release O₂.
II. Jan Ingenhousz (1779): Release of CO₂ by plants was possible only at night and only by the non-green parts of plants.
III. Julius Von Sachs (1884): Green parts in plants produce glucose which is stored as starch.
IV. C. Van Niel (1931): Photosynthesis is essentially a light dependent reaction in which hydrogen from an oxidizable compound reduces CO₂ to form carbohydrates.

Correct statements: I, III, IV

Choose the correct sequence of no. of molecules formed when 6 mol of CO\textsubscript{2 enters into calvin cycle pathway}

Identify the wrong statements from the following:
I. DNA polymerase has capability of catalysing the process of elongation of polypeptide chain
II. In splicing, introns are removed and exons are joined
III. In capping, methyl guanosine triphosphate is added to the 5\textsuperscript{' end of hnRNA
IV. In tailing, adenylate residues are added at 5\textsuperscript{' } end }

Study the A, B and C equations given below and identify the correct match.
A. C6H12O6 + 2NAD + 2ADP + 2Pi → 2C2H4O3 + 2ATP + 2NADH + 2H+
B. Pyruvic acid + 4NAD + FAD + 2H2O + ADP + Pi → 3CO2 + 4NADH + 4H+ + ATP + FADH2
C.

Final acceptor of electrons in light reaction:

The length of DNA is 510 Å. It has 20% of 6-aminopurines. Find out the total number of nucleotides and total hydrogen bonds in that DNA:

Final acceptor of electrons in light reaction:

The length of DNA is 510 Å. It has 20% of 6-aminopurines. Find out the total number of nucleotides and total hydrogen bonds in that DNA:

In C\(_4\) plants, the Oxaloacetic acid is formed by this reaction:

Per one Calvin cycle, the number of CO\(_2\) molecules fixed, ATP utilized, and the number of Glucose, NADPH molecules produced respectively are:

Match the following:

List I	List II	List III
I. Robert Costanza	C) Price tags	ii) Nature’s life support services
II. Sundarbans	A) Mangroves	iv) Flood protection
III. Lichens	D) Soil formation	i) Other supporting service
IV. Ecological function	B) Public transit	iii) Conserve natural services

Assertion (A): C\(_4\) plant loses only half of the water compared to C\(_3\) plant for the same amount of CO\(_2\) fixed. Reason (R): C\(_4\) photosynthetic system is evolved for maximizing the availability of CO\(_2\) while minimizing water loss.