Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Which of the following is an eye disease?

  • Hepatitis

  • Measles

  • Glaucoma

  • Bronchitis


2.

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

3.

Which of the following does not come under the Class Mammals?

  • Flying fox

  • Hedgehog

  • Manatee

  • Lamprey


4.

The black pigment in the eye which reduces the internal reflection is located in

  • retina

  • iris

  • cornea

  • sclerotic


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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


A.

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.


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6.

Which of the following statements regarding glucagon is false?

  • It is secreted by α-cells of Langerhans

  • It acts antagonistically to insulin

  • It decreases blood sugar level

  • The gland responsible for its secretion is heterocrine gland.


7.

Hearing impairment affects which part of brain?

  • Frontal lobe

  • Parietal lobe

  • Temporal lobe

  • Cerebellum


8.

The shoulder blade is made of

  • clavicle

  • humerus

  • ilium

  • scapula


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9. Omnis-cellula-e-cellula was given by

  • Virchow

  • Hooke

  • Leeuwenhoek

  • Brown


10.

The component of blood which prevents its coagulation in the blood vessels is

  • Haemoglobin

  • Plasma

  • Thrombin

  • Heparin


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