In human blood, the oxygen carrier is Options (a) Iron (b) Meth-haemoglobin (c) Haemocyanin (d) Haemoglobin Correct Answer: Haemoglobin Explanation: Haemoglobin, an iron containing red pigment is responsible for transport of O₂ and CO₂ in […]
In horses, rabbits, hares, the cellulose gets digested in the Options (a) Caecum (b) Stomach (c) Appendix (d) Rumen Correct Answer: Caecum Explanation: Caecum is a small, pouch-like structure which ends into a tubular structure […]
Epithelial tissue performs the following functions Options (a) Protection, secretion, absorption, respiration (b) Protection, secretion, sensatoin, absorption (c) Protection, secretion, absorption, digestion (d) None of these Correct Answer: Protection, secretion, sensatoin, absorption Explanation: Epithelial tissues […]
Dental formula of rabbit is Options (a) 1023/1023 (b) 3023/3023 (c) 1023/2023 (d) 2033/1023 Correct Answer: 2033/1023 Explanation: Dental formula of Rabbit is (2033/1023) × 2 = 16/12 = 28
Autorhythmicity is a special property of the muscles of the / Striped and branched muscle are found in Options (a) Liver (b) Intestine (c) Heart (d) Kidney Correct Answer: Heart Explanation: Cardiac muscles can contract […]
Ankle bones have 6 tarsals and arranged in three rows then 1st row have Options (a) Astragalus and calcaneum (b) Pterygoid and astragalus (c) Pterygoid and calcaneum (d) None of these Correct Answer: Astragalus and […]
Nine-tenth of all photosynthesis in the world (85-90%) is carried out by Options (a) large trees with millions of branches and leaves (b) algae of the ocean (c) chlorophyll containing ferns of forest (d) scientists […]
The reactive species in the nitration of benzene is Options (a) NO₃ (b) NHO₃ (c) NO₂⁺ (d) NO₂⁻ Correct Answer: NO₂⁺ Explanation: Nitronium ion (NO₂⁺) is an electrophile that actually attacks on the benzene ring.