Question

question 23
1 pts
in what form does oxygen travel in the blood?
dissolved oxygen in the plasma
associated with hemoglobin
associated with bicarbonate ions
both a and b
question 24
1 pts
the apparatus used to measure the volume of air exchanged in breathing is called a(n)
otoscope.
sphygmomanometer.
spirometer.
ophthalmoscope.
question 25
1 pts
the volume of air exhaled normally after a typical inspiration is called ______ volume.
inspiratory reserve
expiratory reserve
tidal
residual

Explanation:

Question 23

Oxygen in the blood exists in two forms. A small amount is dissolved in the plasma. The majority binds to hemoglobin (forming oxy - hemoglobin). Bicarbonate ions are mainly for carbon dioxide transport.

An otoscope is for ear examination. A sphygmomanometer measures blood pressure. A spirometer measures air volume in breathing. An ophthalmoscope examines the eye.

Inspiratory reserve is extra air inhaled. Expiratory reserve is extra air exhaled. Tidal volume is the normal air exhaled after a normal inspiration. Residual volume is the air remaining in the lungs.

Answer:

D. both a and b

Question 24