Multiple Choice QuestionsWhich match is true?
| Vitamin deficiency disease | Vitamin | Source |
| Severe bleeding | Tocopherol | Milk, egg |
| Anaemia | Ascorbic acid | Lemon, orange |
| Night blindness | Retinol | Carrot, milk |
| Sterility | Calciferol | Milk, butter |
C.
| Night blindness | Retinol | Carrot, milk |
Night blindness is the inability to see in dim light or at night. It is due to disorder of the cells in the retina that are responsible for vision in dim light and can result from dietary deficiency of vitamin A (retinol).
| Name | Sources | Effect of deficiency |
| Vitamin C/ Ascorbic acid | Citrus fruits such as lemon, orange etc. Green vegetables, Potatoes etc. | Scurvy is characterised by wound healing an dgrowth retardation etc. |
| Vitamin D/ Ergocalciferol and Cholecalciferol | Synthesized in skin cells in sunlight. Also found in butter, liver, kidneys, egg yolk etc. | Rickets, a disorder of children of 6 months to 2 years. |
| Vitamin E/ Tocopherol | Green vegetables, oils, egg yolk, wheat, animal tissues | Reversible sterility in female. |
Which of the following does not come under the Class Mammals?
Flying fox
Hedgehog
Manatee
Lamprey
The black pigment in the eye which reduces the internal reflection is located in
retina
iris
cornea
sclerotic
Which of the following match is correct?
| Hormone | Effect |
| Oxytocin | Milk ejection hormone |
| Glucagon | Decreases blood sugar level |
| Adrenaline | Decreases heart rate |
| Thyroxine | Decreases BMR |
Which of the following statements regarding glucagon is false?
It is secreted by -cells of Langerhans
It acts antagonistically to insulin
It decreases blood sugar level
The gland responsible for its secretion is heterocrine gland.
Hearing impairment affects which part of brain?
Frontal lobe
Parietal lobe
Temporal lobe
Cerebellum
The component of blood which prevents its coagulation in the blood vessels is
Haemoglobin
Plasma
Thrombin
Heparin
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