Question

cell transport
read each word on the left then match it with the correct definition on the right. write the number of the definition next to each word
active transport

1. specialized transport proteins that use energy to actively move molecules across a cell membrane against their concentration gradient.

cell membrane

1. when cells engulf large particles, such as bacteria or cellular debris, into vesicles called phagosomes.

concentration gradient

1. the passive movement of molecules across a cell membrane with the help of transport proteins.

diffusion

1. movement of molecules across a cell membrane without the expenditure of energy by the cell.

endocytosis

1. when cells release substances from vesicles into the extracellular environment by fusion with the cell membrane.

exocytosis

1. the difference in concentration of a substance between two regions, usually separated by a membrane.

facilitated diffusion

1. cell with a lower solute concentration causing water to move into a cell; swelling or even bursting.

homeostasis

1. cell with a higher solute concentration causing water to move out of a cell; cell shrinkage.

hypertonic

1. the passive movement of water molecules across a membrane.

hypotonic

1. cell with an equal solute concentration compared to another solution: balanced movement.

isotonic

1. maintaining a stable internal environment within an organism.

osmosis

1. a semi - permeable layer that surrounds the cytoplasm of a cell, separating the interior from the exterior environment.

passive transport

1. when cells take in substances by engulfing them into vesicle.

phagocytosis

1. movement of molecules from an area of low concentration to an area of high concentration, which requires energy.

pinocytosis

1. when cells take in small droplets of extracellular fluid and dissolved solutes into vesicles.

protein pumps

1. movement of molecules from an area of high concentration to an area of low concentration, until equilibrium is reached.

Explanation:

Match each cell - transport related term on the left with its correct definition on the right based on biological concepts of cell membrane function and molecular movement.

Answer:

Active transport - 14
Cell Membrane - 12
Concentration Gradient - 6
Diffusion - 16
Endocytosis - 13
Exocytosis - 5
Facilitated Diffusion - 3
Homeostasis - 11
Hypertonic - 8
Hypotonic - 7
Isotonic - 10
Osmosis - 9
Passive Transport - 4
Phagocytosis - 2
Pinocytosis - 15
Protein Pumps - 1