Multiple Choice
To coordinate the contraction of the numerous muscle cells that form the heart, signals must travel rapidly between muscle cells. In order to allow this rapid communication, muscle cells in the heart are connected by
A) tight junctions.
B) gap junctions.
C) anchoring junctions.
D) carrier proteins.
Correct Answer:
Verified
Correct Answer:
Verified
Q20: The principle of cell _ is that
Q32: Why do some hormones, like thyroxin, affect
Q35: The figure below shows the movement of
Q38: After eating a meal high in carbohydrates,
Q39: Cell-to-cell communication in humans involves the brain.
Q41: In the flowchart below summarizing membrane transport,
Q48: A white blood cell at the site
Q70: Passive carrier molecules often require active carrier
Q75: Hydrophilic signaling molecules<br>A) move into cells by
Q77: Hikers can detect a dead skunk along