Pneumatophores (respiratory roots) are found in
Pistia
Calobranchia
Rhizophora
All of these
C.
Rhizophora
Pneumatophores are the aerial roots that grow vertically upwards in swampy plants like rhizophora to obtain oxygen as swampy plants are constantly submerged under water. Their main function is respiration, hence, they are also called as respiratory roots.
Mycorrhiza is correctly described as
symbiosis of algae and fungi
relation of ants with the stem of some trees
parasitic association between roots and some fungi
symbiotic relationship between fungi and roots of some higher plants
Maximum absorption of light occurs in the region of
400 - 700 nm
700 - 900 nm
1000 - 1200 nm
1500 - 2000 nm
The red colour of 'red sea' is due to which of the following blue-green algae?
Chlamydomonas nivalis
Anabaena
Microcystis
Trichodesmium
Which is a typical example of 'feedback inhibition'?
Allosteric inhibition of hexokinase by glucose-6-phosphate
Reaction between succinic dehydrogenase and succinic acid
Cyanide and cytochrome reaction
Sulpha drugs and folic acid synthesizer bacteria
In C4 plants, CO2 combines with
phosphoglyceric acid
ribulose diphosphate
phosphoenol pyruvate
phosphoglyceraldehyde
Now-a-days cornea transplantation is very popular. The reason is that it
is easy to preserve
transplanted very easily
can be easily obtained
does not link with blood supply and immune system
