In which of the following, purifying bacteria is present Options (a) Intestine (b) Colon (c) Stomach (d) Liver Correct Answer: Colon Explanation: The bacteria are found in the colon which infact are the main source […]
In which of the following proteins are absent Options (a) Pancreatic juice (b) Saliva (c) Bile (d) Intestinal juice Correct Answer: Bile Explanation: Bile has no digestive enzymes and hence, no chemical action on food.
In the wall of alimentary canal which are/is true sequence from outer to inner Options (a) Serosa,longitudinal muscle,mucosa,sub mucosa (b) Mucosa, serosa, long muscle (c) Serosa, long muscle, circular, sub-mucosa, mucosa (d) Serosa, long muscle, […]
In the stomach, gastric acid is secreted by the Options (a) Gastrin secreting cells (b) Parietal cells (c) Peptic cells (d) Acidic cells Correct Answer: Parietal cells Explanation: In the stomach, gastric acid (HCl) is […]
In humans, which among these is not a step in respiration Options (a) Pulmonary ventilation (b) Alveolar diffusion of O₂ and CO₂ (c) Diffusion of O₂ and CO₂ between blood and tissues (d) Utilization of […]
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 […]
In expiration condition, diaphragm becomes Options (a) Circular (b) Relaxed (c) Fully contracted (d) Expanded Correct Answer: Relaxed Explanation: During expiration diaphragm relaxes and becomes dome-shaped thereby reducing intrathoracic volume to pass out the air […]
In anaerobic respiration the pyruvic acid in muscle will form Options (a) Lactic acid (C₃H₆O₃) and H₂O (b) Alcohol (C₂H₅OH) and H₂O (c) Acetaldehyde and H₂O (d) Acetyl CoA and H₂O Correct Answer: Lactic acid […]
In a minute normal man respires Options (a) 10 times (b) 16 times (c) 30 times (d) 4 times Correct Answer: 16 times Explanation: During normal breathing the respiratory movement in 25 years old is […]
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