5 Written questions
5 Matching questions
- turgor pressure
- a 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.
- b a cell that ingests and destroys (digests) foreign matter or microorganisms.
- c the movement of particles from regions of higher density to regions of lower density.
- d the pressure that is exerted on the inside of cell walls and that is caused by the movement of water into the cell.
- e 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.
5 Multiple choice questions
- describes a solution whose solute concentration is lower than the solute concentration inside a cell.
- the movement of chemical substances, usually across the cell membrane, against a concentration gradient; requires cells to use energy.
- a method of active transport across the cell membrane in which the cell takes in extracellular fluids.
- a difference in the concentration of a substance across a distance.
- the transport of substances through a cell membrane along a concentration gradient with the aid of carrier proteins.
5 True/False questions
ion channel → describes a solution whose concentration is equal to the solute concentration inside a cell.
endocytosis → the process by which a cell membranes surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell.
cytolysis → the bursting of a cell.
passive transport → the movement of substances across a cell membrane without the use of energy by the cell.
contractile vacuole → in protists, an organelle that accumulates water and then releases it periodically to maintain osmotic pressure.