Biology - Mock Test 98

Question 971

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 972

Esophagus opens only during ?

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

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Question 973

Enzyme carbonic anhydrase, in ______ speeds up the reaction?

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

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Question 974

Each of the alveolar sac is surrounded by ?

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

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Question 975

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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Question 976

During swallowing of food, ______ is the opening covered by epiglottis?

A) trachea B) glottis C) larynx D) epiglottis

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Question 977

During pneumonia which of the following gets accumulated in lung tissue?

A) RBC B) Fluid WBC C) Blood D) Plasma

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Question 978

During expiration the diaphragm becomes ?

A) Dome-shaped B) Flattened C) Normal D) Oblique

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Question 979

Due to breakdown and collapse of ______ lung tissue is destroyed?

A) eustachian tubes B) bronchioles C) alveoli D) microtrachea

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Question 980

Cilia and mucous are found in ______

A) Trachea B) Glottis C) Larynx D) Epiglottis

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