Question

Given below are six sets with four terms each. In each set, one term is odd and cannot be grouped in the same category to which the other three belong. Identify the odd one in each set and name the category to which the remaining three belong. The first one has been done as an example.
Example: Calyx, Corolla, Stamens, Midrib
Odd term: midrib
Category: parts of a flower.
(i) Haemoglobin, glucagon, rhodopsin, rhodopsin.
(ii) Urethra, uterus, urinary bladder, ureter.
(iii) Transpiration, photosynthesis, phagocytosis, guttation.
(iv) Cyton, photon, aron, dendron.
(v) Oxytocin, insulin, prolactin, progesterone

Answer 1

(i) The odd term is glucagon as rest three terms, haemoglobin, iodopsin and rhodopsin are pigments of RBC, cone and rod.
(ii) The odd term is uterus as other three terms, urethra, urinary bladder and ureter are parts of excretory system.
(iii) The odd term is phagocytosis as other three processes, transpiration, photosynthesis and guttation are seen in plants.
(iv) The odd term is photon as other three terms, cyton, aron and dendron are parts of nerve cells or neuron.
(v) The odd term is insulin as other three terms, oxytocin, prolactin and progesterone are female reproductive/sex hormones.