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ABHYAS PREP: SCIENCE AND TECHNOLOGY (UPSC AND MPSC) · HUMAN BODY

Human body facts

Largest gland, longest bone, units of the kidney and nerves, and more.

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Worked examples

Example 1 · level 1

Which of these descriptions fits: Haemoglobin?

  1. The smallest bone
  2. The part of blood that helps it clot
  3. The red pigment in blood that carries oxygen
  4. The part of the brain that keeps the body balanced
Show solution
  1. The red pigment in blood that carries oxygen: Haemoglobin.
  2. The part of blood that helps it clot: Platelets.
  3. The smallest bone: Stapes (in the middle ear).
  4. The part of the brain that keeps the body balanced: Cerebellum.
  5. Source: https://ncert.nic.in/textbook.php

Answer: The red pigment in blood that carries oxygen

Example 2 · level 2

Consider the following statements: 1. The sheet of muscle below the lungs that helps us breathe: Retina. 2. The largest gland in the human body: Pituitary gland. Which of the statements given above is/are correct?

  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2
Show solution
  1. Statement 1 is wrong: it pairs The sheet of muscle below the lungs that helps us breathe with "Retina". In fact, The sheet of muscle below the lungs that helps us breathe: Diaphragm.
  2. Statement 2 is wrong: it pairs The largest gland in the human body with "Pituitary gland". In fact, The largest gland in the human body: Liver.
  3. Source: https://ncert.nic.in/textbook.php

Answer: Neither 1 nor 2

Example 3 · level 3

Consider the following statements: 1. The layer of the eye on which the image forms: Neuron. 2. The sheet of muscle below the lungs that helps us breathe: Diaphragm. Which of the statements given above is/are correct?

  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2
Show solution
  1. Statement 1 is wrong: it pairs The layer of the eye on which the image forms with "Neuron". In fact, The layer of the eye on which the image forms: Retina.
  2. Statement 2 is correct: The sheet of muscle below the lungs that helps us breathe: Diaphragm.
  3. Source: https://ncert.nic.in/textbook.php

Answer: 2 only

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