Asked in UHS MDCAT 2009 2009Moderate

Most of the carbon dioxide is carried in the blood in the form of

Correct answer: A. Bicarbonate

  • A. Bicarbonate
  • B. COz
  • C. Carboxyhemoglobin
  • D. Blood plasma protein

Explanation

Explanation:The majority of carbon dioxide molecules are carried as part of the bicarbonate buffer system.This option is not correct. Only a small amount of carbon dioxide is carried in the blood in its gaseous form.Carboxyhaemoglobin is a compound formed by the binding of carbon monoxide to haemoglobin. It is not involved in the transport of carbon dioxide in the blood. Blood plasma proteins do not play a significant role in the transport of carbon dioxide in the blood.

Last updated

About Human Respiratory System

The human respiratory system conducts air to the alveoli, where oxygen and carbon dioxide exchange occurs across thin respiratory surfaces. Questions cover the nasal passage, trachea, bronchi, lungs, diaphragm and intercostal muscles, ventilation mechanics and gas transport, while distinguishing breathing and gaseous exchange from cellular respiration.

Practise Respiration

446 free Respiration MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Biology questions like this

Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions