Photochemical Phase of Photosynthesis

IMPORTANT

Photochemical Phase of Photosynthesis: Overview

This topic covers concepts, such as, Absorption Spectrum, Action Spectrum, Red Drop Effect & ATP Synthase etc.

Important Questions on Photochemical Phase of Photosynthesis

EASY
IMPORTANT

Through the use of oxygen-18 (heavy oxygen), scientists have found that the oxygen released during photosynthesis comes from molecules of:

EASY
IMPORTANT

Which one of the following categories of organisms do not evolve oxygen during photosynthesis?

EASY
IMPORTANT

Non-cyclic photophosphorylation does NOT occur in _______.

EASY
IMPORTANT

In carbon dioxide reduction, ATP is

MEDIUM
IMPORTANT

Statement A: PS II is located in the appressed region of grana thylakoid.
Statement B: PS II absorbs light of 680 nm in visible spectrum.
Choose the right option.

MEDIUM
IMPORTANT

Which of the following is not required in chemiosmosis?

MEDIUM
IMPORTANT

Refer the figure given below and choose the correct option given for all the four parts A, B, C and D.

Question Image

EASY
IMPORTANT

Proton motive force is created by pumping protons across the

MEDIUM
IMPORTANT

The breakdown of a proton gradient across the thylakoid membrane is due to

HARD
IMPORTANT

Match Column I with Column II and choose the correct option with respect to chloroplast.

Column-I Column-II
A. Light reaction (i) Enzymatic process
B. Dark reaction (ii) Synthesis of assimilatory power
    (iii) Membranous system
    (iv) Photolysis of water
    (v) RuBisCO

 

MEDIUM
IMPORTANT

What creates the proton gradient across the thylakoid membrane?

HARD
IMPORTANT

The following figure is the pathway of non-cyclic photophosphorylation. In which of the following options, find the correct words for all the given blanks indicated by A, B, C,D and E.

Question Image

EASY
IMPORTANT

The reaction centre of PS I is ___A___ and the reaction centre of PS II is __B__.

MEDIUM
IMPORTANT

The movement of electron is downhill in terms of redox potential scale in ETS, that means________.

MEDIUM
IMPORTANT

Removal of LHC from the photosystem

MEDIUM
IMPORTANT

What does photosystem consist of?

MEDIUM
IMPORTANT

Water splitting complex is associated with ___A___, which itself is located on the ___B____ side of the membrane of thylakoid.

MEDIUM
IMPORTANT

Identify A and B in the following diagram.

Question Image