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Vitamin-B12 is absorbed primarily in the
Stomach
Duodenum
Jejunum
ileum
D.
ileum
The parietal cells of gastric mucosa secrete certain intrinsic factors. This help in the absorption of Vitamin- B12. It is propelled along the small intestine to the terminal ileum and is absorbed by an active transport process.
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The faster breathing in high fever is due to the
Additional requirement of O2 for the invader germs
High temperature of the body
Mental worry of a patient
Loss of appetite
B.
High temperature of the body
Fever increases metabolic activity by 7% per degree Celsius increasing the requirement of O2. It increases the rate of breathing.
Which of the following animals possess non-elastic lungs with elastic air sacs connected to them?
Reptiles
Birds
Amphibians
Mammals
B.
Birds
It is the feature of birds (Aves) to have non-distensible lungs continuous with thin elastic air sacs.
Carotid labyrinth contains
Olfactory receptors
Baroreceptors
Chemoreceptors
Phonoreceptors
B.
Baroreceptors
Carotid labyrinth or a gland is found at the base of internal carotid. It is probably a sense organ containing baroceptors that control blood pressure in the human body.
Epiphyseal plates at the extremities of long bones help in
Bone moulding
Elongation of bone
Bone formation
Formation of Haversian Canal
B.
Elongation of bone
Epiphyseal plate is found between diaphysis and epiphysis. It contributes to the elongation of bone during the growth period.
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Mock Test Series
