Light compensation point is the point where

First reaction in photosynthesis is

NADP reductase enzyme is present on the

Which hypothesis best explains the synthesis of ATP in chloroplast?

In photo system-I, the first electron acceptor is

By which plant pigment maximum absorption of radiation takes place in the blue and red regions of absorption spectrum?

The following (I-IV) are the main steps of chemosynthetic ATP synthesis in the light reaction. Arrange them in correct order

I.${H^ + }$ concentration gradient established

II. ${H^ + }$ diffuses through ATP synthetase

III. Carriers use energy from electrons to move ${H^ + }$ across the membrane

IV. Electrons from PS-II pass along electron transport chain

V. Light excites electrons in PS-II

VI. Energy of ${H^ + }$ flow is used by ATP synthetase to make ATP

During light reaction of photosynthesis

In PS I, the reaction centre Chl a has absorption peak at ____whereas in PS II, the reaction centre Chl a has absorption maxima at ______

I. The electrons that carriers photophosphorylation are located in the thylakoid membrane

II. During photophosphorylation, the chloroplast stroma becomes more acidic than the interior of thylakoid membrane

III. Protons diffuses through the protein channels which are ATP synthetase molecules

IV. ATP is formed from ADP + Pi on the stroma side of the thylakoid in the chloroplast

V. During photophosphorylation, water ionises to form ${H^ + }$, yielding electrons to PS-II

Which of the following statement are false?

Which form of phytochrome is physiologically active?