Nine tenth of all photosynthesis in the world is carried out by:
Large trees with millions of branches and leaves
Algae of the ocean
Chlorophyll containing ferns of the forest
Scientists in the laboratories
The photosynthetic unit was first isolated by
Robert Hill
Arnon
F.F Blackman
Park and Biggins
During photorespiration, the oxygen consuming reaction occur in:
Stroma of chloroplasts and peroxisomes
Grana of chloroplasts and peroxisomes
Stroma of chloroplasts
Stroma of chloroplasts and mitochondria
Cyclic photophosphorylation results in the formation of:
NADPH
ATP and NADPH
ATP, NADPH and O2
ATP
The first carbon dioxide acceptor in C4 - plants is ____________.
phosphoenol - pyruvate
ribulose 1,5 - diphosphate
oxalo acetic acid
phosphoglyceric acid
In the leaves of C4 plants, malic acid formation during CO2 fixation occurs in the cells of:
Mesophyll
Bundle sheath
Phloem
Epidermis
Which fractions of the visible spectrum of solar radiations are primarily absorbed by carotenoids of the higher plants?
Violet and blue
Blue and green
Green and red
Red and violet
Which one occurs both during cyclic and non cyclic modes of photophosphorylation?
Involvement of both PS I and PS II
Formation of ATP
Release of O2
Formation of NADPH
Disc-shaped chloroplast is seen in
Spirogyra
Zygnema
Caulerpa
Ulothrix
The light rays reflected by chlorophyll are
Red
Blue
Green
Yellow
