Cell Membrane and Transport Quiz

What is the movement of molecules across a cell membrane from an area of lower concentration to an area of higher concentration, requiring energy?

• Diffusion

• Active Transport

• Facilitated Diffusion

• Osmosis

What is a selectively permeable barrier that surrounds a cell, controlling the movement of substances in and out of the cell?

• Vesicle

• Cell Wall

• Cell Membrane

• Cytoplasm

What term describes the difference in the concentration of a substance across a space or membrane?

• Isotonic

• Concentration Gradient

• Hypertonic

• Hypotonic

What is the passive movement of molecules from an area of higher concentration to an area of lower concentration until equilibrium is reached?

• Active Transport

• Endocytosis

• Diffusion

• Exocytosis

What process involves a cell engulfing materials by enclosing them in a vesicle to bring them inside the cell?

• Exocytosis

• Endocytosis

• Diffusion

• Active Transport

What is the process by which a cell releases substances by fusing a vesicle with the cell membrane and expelling its contents?

• Endocytosis

• Exocytosis

• Diffusion

• Active Transport

What is the passive transport of molecules across a membrane through a protein channel or carrier protein, without using energy?

• Active Transport

• Facilitated Diffusion

• Endocytosis

• Exocytosis

What property describes molecules that repel water, such as lipids in the cell membrane?

• Hydrophilic

• Hypertonic

• Hydrophobic

• Isotonic

What property describes molecules that attract and interact with water, like the phosphate heads of phospholipids?

• Hydrophobic

• Hypertonic

• Hydrophilic

• Isotonic

What type of solution has a higher solute concentration compared to another solution, causing water to move out of a cell placed in it?

• Hypotonic

• Isotonic

• Hypertonic

• Hydrophilic