Respiratory System

In order for oxygen to diffuse into the blood during inhalation, what is true about blood concentration? 

• both gases are at equivalent levels

• carbon dioxide levels are low

• oxygen levels are high

• oxygen levels are low

If Eurythrocytes only carry about 15% of the CO₂ produced by cellular respiration, why would an individual with anemia report shortness of breath?

• Fewer red blood cells to convert CO₂ to HCO₃^- + H⁺ in the blood will trigger an increase in the pH and a decrease in ventilation, or shortness of breath.

• Fewer red blood cells to convert CO₂ to HCO₃^- + H⁺ in the blood will result in a decreased pH and an increase in ventilation, or shortness of breath.

• Fewer red blood cells convert HCO₃^-  into H⁺ and CO₂ in the plasma triggering an decrease in ventilation, or shortness of breath.

• Fewer red blood cells convert HCO₃^-  into H⁺ and CO₂ in the plasma triggering an increase in ventilation, or shortness of breath.

Tags

NGSS.HS-LS1-3

What is the compound called when oxygen binds with hemoglobin in a person?

• oxyplasma

• oxyhemoglobin

• carbon dioxide

• bicarbonate ion

Which of the following would be a direct result of this Emphysema?

• alveoli would be unable to distribute air equally throughout the lungs

• capillaries surrounding the alveoli would absorb excess carbon dioxide

• lower amounts of oxygen would diffuse across the membranes of alveoli into the bloodstream

• less particulate matter would be trapped by mucous in the alveoli

Which of the following accurately describes the relationship between the gas laws and pulmonary ventilation?

• When the intercostals contract, the lung volume increases causing exhalation.

• When the intercostals contract, the lung volume increases causing inhalation.

• When the diaphragm contracts, lung volume increases causing a decrease in pressure leading to inhalation.

• When the diaphragm contracts, lung volume increases causing a decrease in pressure leading to exhalation.

What is the process called when air moves in and out of the lungs?

• internal respiration

• internal ventilation

• external respiration

• pulmonary ventilation

Which molecules transport the majority of the carbon dioxide in the blood?

• carbohemoglobin

• bicarbonate ions

• hydrogen ions

• oxyhemoglobin

In humans, what process allows the gas exchange of both oxygen and carbon dioxide through the respiratory membrane?

• active transport

• passive transport

• simple diffusion

• osmosis

Tags

NGSS.HS-LS2-3

A problem with the secretion of pulmonary surfactant would cause which of the following problems to occur?

• gas diffusion rates would decrease in the alveoli

• filling of the pleural cavity with fluid would be prevented

• lungs would leak fluid into other cavities

• overinflation of the alveoli would occur following exhalation

Tags

NGSS.HS-LS1-3

Where does exchange of gases between the outside environment and the human body?

• nasal passageway

• trachea

• larynx

• alveoli