5 Written Questions
5 Matching Questions
- sodium-potassium pump
- turgor pressure
- contractile vacuole
- a the pressure that is exerted on the inside of cell walls and that is caused by the movement of water into the cell.
- b a carrier protein that uses ATP to actively transport sodium ions out of a cell and potassium ions into the cell.
- c the bursting of a cell.
- d describes a solution whose solute concentration is lower than the solute concentration inside a cell.
- e in protists, an organelle that accumulates water and then releases it periodically to maintain osmotic pressure.
5 Multiple Choice Questions
- the process by which a cell membranes surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell.
- a method of active transport across the cell membrane in which the cell takes in extracellular fluids.
- the transport of substances through a cell membrane along a concentration gradient with the aid of carrier proteins.
- the process by which a substance is released from the cell through a vesicle that transports the substance to the cell surface and then fuses with the membrane to let the substance out.
- a small cavity or sac that contains materials in a eukaryotic cell; forms when part of the cell membrane surrounds the materials to be taken into the cell or transported within the cell.
5 True/False Questions
phagocytosis → the process by which a cell engulfs large particles or whole cells, either as a defense mechanism or as a means to obtain food.
isotonic → describes a solution whose concentration is equal to the solute concentration inside a cell.
concentration gradient → a difference in the concentration of a substance across a distance.
diffusion → the movement of particles from regions of higher density to regions of lower density.
equilibrium → the bursting of a cell.