Which 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 |
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
A.
retina
The black pigment in the eye which reduces the internal reflection is known as retina. It is the inner most coat of the eyeball and it is a thin, light sensitive nervous layer. The external coat of the eyeball is known as sclerotic but in front of the sclerotic, there is a transparent connective tissue called cornea. Iris is the pigmented part present in front of choroid.
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