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

  • Option 1)

    Photophosphorylation and non-cyclic electron transport

  • Option 2)

    Two photosystems operating simultaneously

  • Option 3)

    Photophosphorylation and cyclic electron transport

  • Option 4)

    Oxidative phosphorylation

 

Answers (2)

As discussed in

Red Drop -

Sharp reduction in rate of photosynthesis when monochromatic light of more than 680 nm wavelength (red region) was used alone.

- wherein

680 \: nm \uparrow - Red drop effect

 

 

Emerson Enhancement Effect -

Simultaneous application of light of shorter and longer wavelengths, increases the rate of photosynthesis.

- wherein

680 \downarrow \: + 680nm \uparrow \: - Emersion \: Effect

 

 Emerson's Enhancement effect and Red drop is due to the presence of two photosystems PS I and PS II.

 

 


Option 1)

Photophosphorylation and non-cyclic electron transport

Incorrect option

Option 2)

Two photosystems operating simultaneously

Correct option

Option 3)

Photophosphorylation and cyclic electron transport

Incorrect option

Option 4)

Oxidative phosphorylation

Incorrect option

2)Two photosystems operating simultaneously.

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