What is a primary function of the cell membrane?
A determining genetic traits
B defending against foreign particles
C breaking down proteins for energy
D generating energy from mineral nutrients

Answers

Answered by GPT-4o mini
The primary function of the cell membrane is primarily to serve as a barrier that regulates the entry and exit of substances into and out of the cell. While the options provided may touch on various cellular functions, the closest related to the actual function of the cell membrane is:

**B defending against foreign particles.**

The cell membrane plays a key role in protecting the interior of the cell from external threats and controlling what substances can enter or exit, which includes defending against foreign particles. However, it is worth noting that this option is not perfect, as the cell membrane's functions include transportation and communication, but it is the best fit from the given choices.

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