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Froggy Jumps
Froggy Jumps

Fast Block to Polyspermy

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Fast Block to Polyspermy

Froggy Jumps

Played 2 %Accuracy 55 Average time 01:51
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About this activity

Rapid egg membrane depolarization

Created by

Ava BENNETT
Ava BENNETT
Australia

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Fast Block to Polyspermy
 

Froggy Jumps

Fast Block to PolyspermyOnline version

Rapid egg membrane depolarization

by Ava BENNETT
1

What is the fast block to polyspermy?

2

How soon after sperm–egg fusion does the fast block occur?

3

Which ion influx is key to the fast block?

4

Does the fast block alter the zona pellucida?

5

What triggers the fast block mechanism?

6

Is the fast block a permanent change?

7

Which membrane is depolarized during the fast block?

8

What process follows the fast block to ensure polyspermy prevention?

9

In which organism is the fast block to polyspermy well characterized?

10

What maintains or returns the egg membrane to its resting potential after the fast block?

11

Why is fast block needed?

 
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