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NEET Biology Solved Question Paper 2007

Multiple Choice Questions

Which of the following is an eye disease?

Hepatitis
Measles
Glaucoma
Bronchitis

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

5.
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

Hormone	Effect
Oxytocin	Milk ejection hormone

Oxytocin is a hormone that causes both contraction of smooth muscle in the uterus during birth and expulsion of milk from the mammary glands during suckling. It is produced in the neurosecretory cells of the hypothalamus but is stored and secreted by the posterior pituitary gland.

Glucagon is a hormone, secreted by the $α$ (or A) cells of the islets of Langerhans in the pancreas, that increases the concentration of glucose in the blood by stimulating the metabolic breakdown of glycogen. It thus antagonizes the effects of insulin.

Adrenaline (epinephrine) is a hormone produced by the medulla of the adrenal glands, that increases heart activity, improves the power and prolongs the action of muscles, and increases the rate and depth of breathing to prepare the body for 'fright, flight, or fight'. At the same time it inhibits digestion and excretion.

Thyroxine is secreted by thyroid gland. It controls the rate of all metabolic processes in the body and influence physical development and activity of the nervous system.