Methods of cellular transportation

Question 1

Diffusion

Answer 1

The net movement of particles from an area of high to low concentration

Question 1

Passive

Answer 1

Where molecules move from an area of high concentration to an area of low concentration. It DOES NOT require energy

Question 2

Osmosis

Answer 2

Movement of a solvent through a semipermeable membrane into a solution of high solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane

Question 3

Facilitated Transport

Answer 3

Large ions such as glucose, sodium ions and chloride ions are “facilitated” by proteins that span the membrane and provide an alternative route or bypass mechanism. This is also passive transportation

Question 4

Active Transport

Answer 4

When the molecule moves from an area of low concentration to an area of high concentration. It needs energy in the form of ATP (adenosine triphosphate”

Question 5

Endocytosis

Answer 5

A process in which a cell takes in materials from the outside by engulfing and fusing them with its plasma membrane. Phagocytosis and pinocytosis are both methods of endocytosis

Question 6

Phagocytosis

Answer 6

Phagocytosis (“cell eating”) is the process by which large particles, such as cells or relatively large particles, are taken in by a cell

Question 7

Pinocytosis

Answer 7

Pinocytosis is a process that takes in molecules, including water, which the cell needs from the extracellular fluid

Question 8

Exocytosis

Answer 8

The transport of material out of a cell by means of a sac or vesicle that first engulfs the material and then is extruded through an opening in the cell membrane