When a Sperm Cell Comes into Contact with an Egg

question 65

Multiple Choice

When a sperm cell comes into contact with an egg cell, there is a change in the electrical charge across the plasma membrane and various channel proteins close. These channels would be called

• A) open-gated channels.
• B) voltage-gated channels.
• C) chemical-gated channels.
• D) ligand-gated channels.
• E) nongated ion channels.

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