Respiration Pt. 2

What happens when the diaphragm relaxes?

• the pressure within the lungs decreases

• the volume of the thoracic cavity increases

• the volume of the thoracic cavity decreases

• the pressure within the lungs increases

23% of CO2 is to hemoglobin in RBC's to form

• bicarbonate

• carbonic acid

• Carbonic anhydrase

• carbaminohemoglobin

Bicarbonate ions move into plasma in exchange for ______ ions in what is called a _______ shift

• hydrogen; carbonic

• chloride; chloride shift

• oxygen; oxygenic shift

• hemoglobin; bicarbonate

Where does most CO2 diffuse?

• Medulla oblongata

• WBC's

• RBC's

• Blood Air Barrier

Which three ways can CO2 be carried in bloodstream?

• dissolved in plasma

• bound to hydrogen ion

• bound to hemoglobin in RBC's

• converted to carbonic acid

After CO2 diffuses into RBC's what is it converted to?

• carbonic acid

• bicarbonate

• HCO3-

• H2CO3

Equation for Bohr Effect

(a)  

The effect of pH on hemoglobin saturation curve

• Boyle effect

• Henry effect

• Left-Shift

• Bohr effect

When temperature increases, hemoglobin released more (a)  

What is the role of voluntary respiratory centers of the brain?

• regulation of depth of pulmonary ventilation

• regulation of motor neurons for respiratory muscles

• regulation of frequency of pulmonary ventilation

• regulation of rate of pulmonary ventilation

Tags

NGSS.HS-LS1-3