Which one of the following statements is correct regarding blood

Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Arteries are best defined as the vessels which

  • Carry blood away from the heart to different organs

  • Break up into capillaries which reunite to form a vein

  • Carry blood from one visceral organ to another visceral organ

  • Carry blood from one visceral organ to another visceral organ

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2.

Match the source gland with its respective hormone as well as the function.

  • Source gland Hormone Function
    Posterior pituitary Vasopressin Stimulates resorption of water in the distal tubules in the nephron

  • Source gland Hormone Function
    Corpus luteum Oestrogen Supports pregnancy

  • Source gland Hormone Function
    Thyroid Thyroxine Regulates blood calcium level

  • Source gland Hormone Function
    Thyroid Thyroxine Regulates blood calcium level

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3.

Which one of the following statements is correct regarding blood pressure?

  • 100/55 mmHg is considered an ideal blood pressure

  • 105/50 mmHg makes one very active

  • 190/110 mmHg may harm vital organs like brain and kidney

  • 190/110 mmHg may harm vital organs like brain and kidney


C.

190/110 mmHg may harm vital organs like brain and kidney

Hypertension is the term for blood pressure that is higher than normal (120/80). In this measurement, 120 mm Hg (millimeter of mercury pressure) is the systolic, or pumping, pressure and 80 mm Hg is the diastolic, or resting pressure. If repeated checks of blood pressure 190/100 mm Hg) of an individual is 140/90 (140 over 90) or higher, it shows hypertension. High blood pressure (190/100 mm Hg) leads to heart diseases and also affects vital organs like brain and kidney. 

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4.

The Eyes of the potato tuber are

  • flower buds

  • shoot buds

  • axillary buds

  • axillary buds

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5.

Two friends are eating together on a dining table. One of them suddenly starts coughing while swallowing some food. This coughing would have been due to improper movement of

  • Diaphragm

  • Neck

  • Tongue

  • Tongue

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6.

The figure given below shows a small part of human lung where exchange of gases takes place. In which one of the options given below, the one part A, B, C or D is correctly identified along with its function.

  • A: Alveolar cavity - main site of exchange of respiratory gases

  • D: Capillary wall - exchange of O2 and CO2 takes place here

  • B : Red blood cell - transport of CO2 mainly

  • B : Red blood cell - transport of CO2 mainly

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7.

The ciliated columnar epithelial cells in humans are known to occur in

  • bronchioles and fallopian tubes

  • bile duct and oesophagus

  • fallopian  tubes and urethra

  • fallopian  tubes and urethra

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8.

CAM helps the plants in

  • secondary growth

  • disease resistance

  • reproduction

  • reproduction

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9.

The function of leghemoglobin in the root nodules of legumes is 

  • oxygen removal 

  • nodule differentiation

  • expression of nif gene

  • expression of nif gene

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10.

'Bundle of His' is a part of which one of the following organs in humans?

  • Heart

  • Kidney

  • Pancreas

  • Pancreas

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