Question

1	$N{a}^{+}$/$K^{+}$ pump	Active transport
2	Movement of neutral molecules across the membrane	Can be a passive transport
3	Bulk intake of a solid substance	Endocytosis
4	Movement of polar molecules across the membrane	Simple diffusion

Select the incorrect match.

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

The correct option is D 4

A. The process of moving sodium and potassium ions across the cell membranes is an active transport process involving the hydrolysis of ATP to provide the necessary energy. It involves an enzyme referred to as $N{a}^{+}$, $K^{+}$ - ATPase.

B. The movement of molecules across the cell membrane through facilitated diffusion which is passive transport.

C. Endocytosis is a mode in which small particles suspended in extracellular fluid are brought into the cell through the invagination of the cell membrane, resulting in a suspension of the particles within a small vesicle.

D. Facilitated diffusion uses integral membrane proteins to move polar or charged substances across the hydrophobic regions of the membrane.

So, the incorrect match is "4".