Substances that enter the cell without the expense of cellular atp, but are too large to directly pass through the membrane, use in order to gain access to the inside of the cell. a) vesicles b) osmosis c) pseudopodia d) membrane proteins

Membrane proteins

Explanation:

Membrane proteins are common type of proteins that are the part of membrane or interact with membranes.

It falls into many criteria based on the  location the membrane proteins are found. It can be found on the either sides of the membrane. inside the cell or outside the cell.

It acts as the receptors for specific molecules or it can also help in the transportation of the molecules across membranes. The molecules that are too large to be transported across membrane enters with the help of cell membrane.

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