Kranz anatomy is usually associated with
C3 plants
C4 plants
CAM plants
C3-C4intermediate plants.
B.
C4 plants
The C4 plants are adapted to dry tropical regions and have greater productivity of biomass. They have special type of leaf anatomy known as Kranz anatomy. In this type of anatomy then bundle sheath cells form several layers around the vascular bundles; they are characterized by having a large number of chloroplasts, thick walls impervious to gaseous exchange and no intercellular spaces.
Apiculture is associated with which of the following groups of plants
Grapes, maize, potato
Sugarcane, paddy, banana
Guava, sunflower, strawberry
Pineapple, sugarcane, strawberry
Catecholamine in a normal person induces
intense salivation
alertness
decrease in heart beat
excessive urination.
Oxygen binding to haemoglobin in blood is
directly proportional to the concentration of CO2 in the medium
inversely proportional to the concentration of CO2 in the medium
directly proportional to the concentration of CO in the medium
independent of the concentration of CO in the medium
During muscular contraction, which of the following events occur
(i) H-zone disappears
(ii) A band widens
(iii) I band reduces in width
(iv) Width of A band is unaffected
(v) M line and Z line come closer
(i), (iii), (iv) and (v)
(i), (i) and (v)
(ii), (iv) and (v)
(i), (ii) and (iii)
The release of chemical messenger from synaptic vesicles is under the influence of these ion(s).
Cl-
Fe and S2+
Ca2+
Mg2+ and Sr2+
Microtubule depolymerizing drug such as colchicine is expected to
inhibit spindle formation during mitosis
inhibit cytokinesis
allow mitosis beyond metaphase
induce formation of multiple contractile rings
Which of the following cartoon characters does not share its name with that of a gene
Tintin
Popeye
Asterix
Obelix
Leghaemoglobin is produced in response to
respiration
photosynthesis
fatty acid synthesis
N2 fixation
Which of the following is correctly labelled for the given figure
A: PS II; B : PS I; C :e- acceptor, D: LHC
A: LHC; B:e- acceptor; C: PS I; D: PS II
A: PS I; B:PS II; C:e- acceptor; D: LHC
A: e- acceptor; B : LHC; C: PS Il; D: PS I
