Which part of the membrane large molecules pass through it

The Integral membrane proteins

Explanation:

Integral membrane proteins enable ions and large polar molecules to pass through the membrane by passive or active transport.

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.

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