What is a small protein channel that allows the passage of ions and small molecules between cells?
A. Desmosomes
B. Gap junction
C. Tight junction
D. Hemidesmosomes
E. Adhesion belt
Answer: B
Anatomy & Physiology
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A person who is colorblind lacks
A) corneas. B) retinas. C) one type of photopigment. D) a gene that encodes the proteins in rod cells.
Anatomy & Physiology
The primary response to microbial invasion is mediated by memory cells
Indicate whether the statement is true or false
Anatomy & Physiology
The partial pressure of carbon dioxide in the interstitial space of peripheral tissues is approximately
A) 35 mm Hg. B) 45 mm Hg. C) 55 mm Hg. D) 70 mm Hg. E) 100 mm Hg.
Anatomy & Physiology
Blood is a ________.
A) colloid B) homogeneous compound C) heterogeneous compound D) suspension
Anatomy & Physiology