Anoxygenic photosynthesis is characteristic of
rhodospirlllum
Spirogyra
Chlamydomonas
Chlamydomonas
A.
rhodospirlllum
Anoxygenic photosynthesis (in which O2 is not released) is seen in Rhodospirillum, a purple non- sulphur bacteria. it helps an organism to trap light energy and store it as chemical energy.
A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rate of photosynthesis at high temperatures and has improved efficiency of nitrogen utilisation. In which of the following physiological groups would you assign this plant?
C4
CAM
Nitogen-fixer
Nitogen-fixer
Emerson's enhancement effect and red drop have instrumental in the discovery of
two photosystems operating simultaneously
photophosphorylation and cyclic electron transport
oxidative phosphorylation
oxidative phosphorylation
Specialised epidermal cells surrounding the guard cells are called
sunbsidiary cells
bulliform cells
lenticels
lenticels
The three boxes in this diagram represent the three major biosynthetic pathways in aerobic net reactant or products
Arrows numbered 4, 8 and 12 can all be
NADH
ATP
H2O
H2O
The oxygen evolved during photosynthesis comes from water molecules. Which one of the following pairs of elements is involved in this reaction?
Manganese and Chlorine
Manganese and Potassium
Magnesium and Molybdenum
Magnesium and Molybdenum
In photosynthesis, the light-independent reactions take place
Thylakoid lumen
Photosystem I
Photosystem II
Photosystem II
A process that makes important difference between C3 and C4 plants is
transpiration
glycolysis
photosynthesis
photosynthesis
The correct sequence of cell organelles during photorespiration is
chloroplast - Golgi bodies - mitochondria
chloroplast-rough endoplasmic reticulum -dictyosomes
chloroplast-mitochondria-peroxisome
chloroplast-mitochondria-peroxisome
