Question

1. the movement of molecules from an area of low concentration outside the cell membrane to an area of high concentration within a cell membrane is most likely which of the following types of transport?

○ osmosis
○ exocytosis
○ diffusion
○ endocytosis

Explanation:

• Osmosis is the movement of water molecules from an area of high water concentration (low solute concentration) to an area of low water concentration (high solute concentration) across a semi - permeable membrane.
• Exocytosis is the process by which cells expel materials (such as waste products or secretory proteins) out of the cell. It does not involve the movement of molecules from low to high concentration across the cell membrane for uptake.
• Diffusion is the movement of molecules from an area of high concentration to an area of low concentration.
• Endocytosis is a form of active transport where cells take in materials. It can be used to move molecules against their concentration gradient (from low to high concentration within the cell membrane in this case). For example, in receptor - mediated endocytosis, specific molecules are taken into the cell even if their concentration outside is lower.

Answer:

endocytosis