Tag: respiration in humans

Quizzes (0) Questions (93)

Questions Related to respiration in humans

Multiple choice biology human body respiration in humans mechanism of respiration in animals human lungs

State if the following statement is True or False. Correct the False statement.
Our lungs eliminate metabolic wastes like urea from the body.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The statement is false because the primary organ for eliminating nitrogenous wastes like urea is the kidneys, via urine formation, not the lungs. The lungs primarily eliminate carbon dioxide and water vapor.

Multiple choice biology human body respiration in humans mechanism of respiration in animals human lungs

State if the following statement is True or False. Correct the False statement.
Bile pigments are the excretory products excreted by the lungs.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The statement is false because bile pigments are excreted by the liver into the digestive tract through bile and eliminated via feces, not excreted by the lungs. Lungs expel respiratory gases like carbon dioxide.

Multiple choice biology human body respiration in humans mechanism of respiration in animals human lungs

Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because.

  1. Pressure in the lungs is higher than the atmospheric pressure

  2. There is negative pressure in the lungs

  3. There is negative intrapleural pressure pulling at the lung walls

  4. There is positive intrapleural pressure
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The lungs remain inflated because the intrapleural pressure is lower than the intrapulmonary pressure (negative pressure), which pulls the lungs outward against the chest wall, preventing collapse.