In the following questions, a statement of Assertion is given followed by a corresponding statement of Reason. Mark the correct answer as:
Assertion: $Larynx$ passes air to the $pharynx$.
Reason: $Pharynx$ produces sound.

  • A
    If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  • B
    If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
  • C
    If Assertion is true, but Reason is false.
  • D
    If Assertion is false, but Reason is true.

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Similar Questions

Describe the mechanism of breathing in human beings.

In fermentation, the incomplete oxidation of glucose is achieved under anaerobic conditions by a set of reactions where pyruvic acid is converted to $CO_2$ and ethanol. The enzymes, pyruvic acid decarboxylase and alcohol dehydrogenase, catalyse these reactions. Answer the following questions:
$(i)$ Write the chemical equation for alcoholic fermentation.
(ii) $A$ test tube containing molasses solution and yeast is kept in a warm place overnight. What gas is collected from the mixture?
(iii) How does ethyl alcohol fermentation occur?
(iv) What is pyruvic acid?

Which one of the following organisms does not depend on simple diffusion of gases for breathing and respiration?

Lack of oxygen in muscles often leads to cramps among cricketers. This results due to:

Which of the following is correct for the process of anaerobic respiration?
Carbon dioxide always produced A lot of energy released
$a.$ No Yes
$b.$ No No
$c.$ Yes No
$d.$ Yes Yes

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