If a herbicide specifically inhibits the plastoquinone binding site of Photosystem II, which of the following would be the most immediate consequence?
Increased ATP production
Accumulation of NADPH
Cessation of electron flow from water to Photosystem II
Enhanced cyclic photophosphorylation
Related Questions
Non-cyclic phosphorylation occurs in
I. stroma lamellae
II. grana lamellae
III. chloroplast membrane
Select the correct option
Only I
II and III
I and III
Only II
Emersonβs enhancement effect and Red drop have been instrumental in the discovery of:
Photophosphorylation and non β cyclic electron transport
Two photosystems operating simultaneously
Photophosphorylation and cyclic electron transport
Oxidative phosphorylation
What is the function performed by plant pigments?
Absorb
Absorb
Absorb
Absorb light
Oxygen is not produced during photosynthesis by
Chara
Green sulphur bacteria
Cyca
Nostoc
Which molecule is synthesized in the Calvin cycle using products from the light-dependent reactions?
ATP
NADPH
Oxygen
Glucose
In photorespiration, which is light induced cyclic oxidation of photosynthetic intermediates with the help of oxygen, the substrate is
Glycolate
Glucose
Pyruvic acid
Acetyl Co-A
I. Photosystem-I is a photosynthetic pigment system located on the appressed part of grana and thylakoids
II. Photosystem-II is a photosynthesis pigment located on the non-appressed part of stroma only
Identify wheather the given statements are correct or incorrect and choose the correct accordingly
Both statements are correct
Both statements are incorrect
Statement I is correct but statement II is incorrect
Statement II is correct but statement I is incorrect
A reduction in the quantity of oxygen evolution during photosynthesis may be observed at
Light having wavelength more than 680 nm
Light having wavelength less than 680 nm
Light having wavelength 560 nm
Light having wavelength less than 360 nm
Identify from the following, a characteristic pigment, which contains copper containing protein
Plastoquinone
Ferredoxin
Cytochrome
Plastocyanin
Photochemical reactions in the chloroplast are directly involved in
Photolysis of water and formation of ATP
Formation of PGA
Synthesis of starch and lipid
Fixation of PEP