If the total pressure of a mixture of gases was 760 mm Hg and its composition is
ID: 226495 • Letter: I
Question
If the total pressure of a mixture of gases was 760 mm Hg and its composition is 20% oxygen, 0.04% carbon dioxide, 75% nitrogen, and 5% water vapor, then the partial pressure of oxygen would be 200 mm Hg. 184 mm Hg. 150 mm Hg. 740 mm Hg. 20 mm Hg. Lacteals are lymphatic vessels in the lining of the small intestine. the sinuses inside a lymph node. a nonspecific defense. germinal centers. a type of lymphocyte. The right lymphatic duct drains lymph from the thorax. right leg. left aim and left side of head. right arm and right side of head. abdomen. Oxygen diffusion from the alveolus to the pulmonary capillary occurs because oxygen diffuses faster than carbon dioxide. alveolar PCO_2 is greater than capillary PCO_2. alveolar PO_2 is less than capillary PCO_2. carbon dioxide diffuses faster than oxygen. alveolar PO_2 is greater than capillary PO_2. Which of the following statements concerning the larynx is correct? Co articulate cartilages are attached to arytenoids cartilages. The inferior laryngeal cartilage is the thyroid cartilage. The larynx contains four unpaired cartilages. The epiglottis is also called Adam's apple? Unlike other portions of the larynx, the epiglottis consists of some bony tissue.Explanation / Answer
(24) According to Raoult's law of partial pressure,
Partial pressure of oxygen = ( mole fraction of oxygen in the mixture of gases) x ( Total pressure of the gas mixture)
Partial pressure of oxygen = (20/100) x (760 mm Hg) = 152 mm Hg
(Answer) (C)
(25) Lacteals are lymphatic vessels found in the lining of small intestine and abosorb digested fat.
(Answer) (A)
(26) Right lymphatic duct drains lymph from the right side of the body including right upper limb, right side of the thorax and right halves of head and neck.
(Answer) (D)
(27) The alveolar partial pressure of oxygen is high as compared to the capillaries (low concentration). For this reason, oxygen diffuses from alveolus to the pulmonary capillary due to the concentration gradient of oxygen.
(Answer) (E)
(28) In larynx, corniculate cartilages attach themselves to the apex of the arytenoid cartilages.
(Answer) (A)