Question:

Law of limiting factor of photosynthesis was proposed by

Updated On: Jun 17, 2022

von Mayer
Arnon
FF Blackmann
Hill

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The Correct Option is C

Solution and Explanation

Law of limiting factor was proposed by $F F$ Blackmann in 1905. He stated that when a process is conditioned as to its rapidity by a number of separate factors, the rate of process is limited by the pace of slowest factor. Blackmanns law of limiting factor is applicable to any physiological process which is affected by more than one factor. von Mayer in $1845$ stated that green plants convert solar energy into chemical energy during the process of photosynthesis. Arnon in $1954$, discovered photophosphorylation. He also showed fixation of $CO_{2}$ by previously illuminated isolated chloroplasts by using radioactive carbon $^{14}C $ in their carbon dioxide. Robin Hill in $1937$ proposed that the evolution of oxygen occurs in light reaction performed by isolated illuminated chloroplast in the presence of suitable electron acceptors and in the absence of $CO_{2}$ .

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Concepts Used:

Photosynthesis in Higher Plants

Processes Of Photosynthesis in Higher Plants:

Photosynthesis in higher plants involves the following processes:

Light Reaction
Dark Reaction

Light Reaction:

This phenomenon occurs in the presence of light.
The pigment absorbs light and produces energy in the form of ATP.
The process involves- absorption of light, water splitting, the release of oxygen, and formation of ATP and NADPH.

Dark Reaction:

This process occurs in the absence of light in the stroma of the chloroplasts. The following cycles are involved in the process:

Calvin Cycle (C3 Cycle)
C4 Cycle (Hatch and Slack Pathway)

List-I (Pigments)		List-II (Colour in chromatogram)
1	Chlorophyll 'b'	p	Yellow orange
2	Carotenoids	q	Orange red
3	Chlorophyll 'a'	r	Yellow
4	Xanthophylls	s	Blue green
		t	Yellow green