During the light-dependent reactions of photosynthesis, plastoquinone (PQ) transfers electrons from:
Oxygen-evolving complex to Photosystem II
Photosystem II to cytochrome b6f complex
Cytochrome b6f complex to Photosystem I
Photosystem I to NADP+
Related Questions
Which photosystem is involved in cyclic photophosphorylation?
PS-II
PS-I
Xanthophyll and PS-II
Xanthophyll and PS-I
The first event in photosynthesis is
synthesis of ATP
photoexcitation of chlorophyll
photolysis of water
release of
What is the main product of the light-dependent reactions that is directly used in the Calvin cycle?
ATP and NADPH
Glucose
Carbon dioxide
Water
The molecule present in the reaction centre of photosystem is
Chlorophyll-a
Chlorophyll-b
Chlorophyll-c
Chlorophyll-d
Chemiosmatic hypothesis is based on
Membrane potential
Proton gradient
Accumulation of ions
accumulation of ions
The first acceptor of electrons from an excited Chlarophyll molecule of photosystem –II is?
Cytochrome
Iron – sulphr protein
ferredoxin
Pheophytin
What is the role of light in photophosphorylation?
Directly phosphorylates ADP to ATP.
Provides energy to excite electrons in chlorophyll.
Splits water molecules.
Fixes carbon dioxide.
What is the primary function of the bundle sheath cells surrounding the vascular bundles in plants?
Preventing photorespiration
Storage of water
Nitrogen fixation
Increasing light absorption
Quantasomes occur on the surface of
Cristae
Plasmalemma
Nuclear envelope
Thylakoids
Which of the following statements regarding cell division is incorrect?
Mitosis produces genetically different daughter cells.
Meiosis is involved in sexual reproduction.
Cell division is essential for growth and repair in multicellular organisms.
Meiosis produces four daughter cells.
