The dark coloured dead wood present in the central region of old tree is
spring wood
heart wood
sap wood
cambium
Diffusion Pressure Deficit (DPD) is equal to the Osmotic pressure substracted by
Osmotic Pressure (OP)
Turgor Pressure (TP)
Suction Pressure (SP)
Water Potential ()
Oxygen released in photosynthesis comes outby
photophosphorylation
photolysis of water
photorespiration
Kelvin cycle
Glycolate accumulates in chloroplast there is
low CO2
high CO2
bright light
low temperature
A.
low CO2
Glycolate is a respiratory substrate in photo respiration, which is formed in high concent ration of O2 but low concentration of CO2 under the influence of RuBP oxygenase in chloroplast. When temperature and CO2 content are high the affinity of RuBP carboxylase increases for O2 but decreases for carbondioxids. Glycolate is produced as intermediate in C3 cycle.
The endosymbiotic hypothesis of mitochondrial origin states that
mitochondria were capable of self-duplication
mitochondria were initially aerobic bacteria
mitochondria were chloroplast in the beginning
mitochondria were part of nucleus
The basic principles of embryonic development were first given by
Weismann
Haeckel
Von Baer
Malthus
Corpus luteum in mammals occurs in
brain and connects two cerebral hemispheres
ovaries and produces progesterone
heart and initiate contraction
skin and acts as a pain receptor
Fasciola hepatica (liver fluke) infects its intermediate host and primary host at the following larval stages respectively
redia and miracidium
cercaria and redia
cercaria and metacercaria
miracidium and metacercaria
Select the correct sequence of stages in the evolution of modern man (Homo sapiens)
Australopithecus, Homo habilis, Neanderthal, Cro-magnon man, Modern man
Homo habilis, Neanderthal, Australopithecus, Cro-magnon man, Modern man
Australopithecus, Neanderthal, Cro-magnon man, Homo habilis, Modern man
Neanderthal, Australopithecus, Cro-magnon man, Homo habilis, Modern man