Which statement accurately describes alveolar and systemic gas exchanges?

A. In both alveolar and systemic gas exchange, oxygen diffuses toward the blood.
B. In alveolar gas exchange oxygen diffuses out of the blood, but in systemic gas exchange it diffuses into the blood.
C. In alveolar gas exchange oxygen diffuses into the blood, but in systemic gas exchange it diffuses out of the blood.
D. In both alveolar and systemic gas exchange, oxygen diffuses out of the blood.


Answer: C

Anatomy & Physiology

You might also like to view...

The preganglionic axons of CN VII extend to the

A. pterygopalatine ganglion. B. submandibular ganglion. C. otic ganglion. D. pterygopalatine, submandibular, and otic ganglia. E. pterygopalatine and submandibular ganglia.

Anatomy & Physiology

Which of the following neurotransmitters is typically NOT classified as a biogenic amine?

A) Acetylcholine B) Serotonin C) Epinephrine D) Dopamine

Anatomy & Physiology

________ are part of cell-mediated immunity while ________ are part of antibody-mediated immunity.

A. Macrophages; antibodies B. B cells; NK cells C. Antibodies; antigens D. Neutrophils; monocytes E. T cells; B cells

Anatomy & Physiology

The enzyme lactase

A. promotes the formation of and storage of bile by the gallbladder. B. is involved directly in the digestion of proteins. C. is necessary for the breakdown of milk fats. D. is embedded in the luminal plasma membranes of intestinal epithelial cells. E. is overproduced and released by secretory cells in the small intestine in the condition known as lactose intolerance.

Anatomy & Physiology