Biology - Comprehensive Mock Test 33

Question 321 Medium

In which of the following restrictive lung disease the vital capacity is reduced to below normal levels?

A) pneumonia B) tuberculosis C) pulmonary fibrosis D) all of the above

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Question 322 Medium

In the human body which concentration is regulated mainly by the kidneys?

A) bicarbonate B) carbaminohemoglobin C) deoxyhemoglobin D) oxyhemoglobin

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Question 323 Easy

Human nose contains ______ nasal cavities

A) one B) two C) three D) four

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Question 324 Medium

Hemoglobin retains oxygen and releases it in the ______

A) heart B) lungs C) glottis D) tissues

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Question 325 Easy

Hamburger’s phenomenon is also called ?

A) Hydrogen shift B) Bicarbonate shift C) Chloride shift D) Sodium shift

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Question 326 Medium

Exchange of oxygen and carbon dioxide between alveolar air and blood is governed by _______

A) diffusion B) blood pressure C) gravity D) active transport

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Question 327 Easy

Esophagus opens only during ?

A) speaking B) exhaling C) inhaling D) swallowing

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Question 328 Medium

Enzyme carbonic anhydrase, in ______ speeds up the reaction?

A) Platelets B) Leucocytes C) Lymphocytes D) RBCs

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Question 329 Easy

Each of the alveolar sac is surrounded by ?

A) capillaries B) veins C) arteries D) primarily lymphatic ducts

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Question 330 Medium

During which respiration, the respiratory pigment hemoglobin combines with oxygen in the lungs?

A) Aerobic cellular B) External C) Internal D) Circulatory

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