Maximum solar energy is trapped by:
Planting trees
Cultivating crops
Growing algae in tanks
Growing grasses
The principle of limiting factors was proposed by:
Blackmann
Hill
Arnon
Liebig
A very efficient converter of solar energy with net productivity of 2 - 4 kg/m2 or more is the crop of :
Wheat
Sugarcane
Rice
Bajra
A free living, nitrogen-fixing cyanobacterium which can also form symbiotic association with the water fern Azolla is:
Tolypothrix
Chlorella
Nostoc
Anabaena
Cytochrome is :
Metallo flavo protein
Fe - containing porphyrin pigment
Glycoprotein
Lipid
Which element is located at the centre of the porphyrin ring in chlorophyll?
Manganese
Calcium
Magnesium
Potassium
Choose the correct match:
Bladderwort, Sundew, Venus fly trap
Nepenthes, Dionea, Drosera
Nepenthes, Utricularia, Vanda
Utricularia, Drosera, Dionea
Dionea, Trapa, Vanda
Cyclic - photophosphorylation results in the formation of:
NADPH
ATP and NADPH
ATP, NADPH and O2
ATP
In the leaves of C4- plants, malic acid formation during CO2 fixation occurs in the cells of:
Mesophyll
Bundle sheath
Phloem
Epidermis
Greatest producers of organic matter are:
Crop plants
Forests
Plants of the land area
Phytoplankton of oceans