The graph describes the change in egg membrane potential associated with fertilization in the sea urchin. What event occurs within 20 seconds of sperm addition? mv 100 50 0 -50 -100 4 Sperm added 0 20 40 Seconds 60 a. acrosome reaction O b. sperm binding to the egg plasma membrane Oc. Influx of Na+ from the seawater O d. all of the above 80

Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter49: Animal Reproduction
Section: Chapter Questions
Problem 5TYK: The slow block to polyspermy: a. is caused by a change in membrane potential from negative...
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The graph describes the change in egg membrane potential associated with fertilization in the sea urchin. What
event occurs within 20 seconds of sperm addition?
mV
100
50
0
-50
-100
1
Sperm
added
0
20
40
Seconds
60
a. acrosome reaction
O b. sperm binding to the egg plasma membrane
Oc. Influx of Na+ from the seawater
Od. all of the above
80
Transcribed Image Text:The graph describes the change in egg membrane potential associated with fertilization in the sea urchin. What event occurs within 20 seconds of sperm addition? mV 100 50 0 -50 -100 1 Sperm added 0 20 40 Seconds 60 a. acrosome reaction O b. sperm binding to the egg plasma membrane Oc. Influx of Na+ from the seawater Od. all of the above 80
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