Cell and Cell Transport

Front

What structure of the cell forms a frame that holds the cell up in the cytoplasm?

Back

Cytoskeleton: A network of fibers that provides structural support and shape to the cell.

Front

What is the process called when molecules move across the cell membrane from an area of high concentration to an area of low concentration through a carrier protein?

Back

Facilitated Diffusion: A type of passive transport that uses carrier proteins to help move molecules across the cell membrane.

Front

What type of cell transport involves the engulfing of materials into the cell?

Back

Endocytosis: A process where the cell membrane engulfs material, forming a vesicle to bring substances into the cell.

Front

True or False: The nuclear envelope encloses the nucleus and its contents.

Back

True: The nuclear envelope is a double membrane that surrounds the nucleus, protecting its contents.

Front

What is the primary function of the Golgi apparatus?

Back

Modifies and packages molecules: The Golgi apparatus processes and packages proteins and lipids for secretion or delivery to other organelles.

Front

What is the function of the cell membrane?

Back

Cell Membrane: A semi-permeable barrier that controls the movement of substances in and out of the cell.

Front

Define osmosis.

Back

Osmosis: The movement of water molecules across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is active transport?

Back

Active Transport: The movement of molecules against their concentration gradient, requiring energy (ATP) to move substances into or out of the cell.

Front

What role do centrioles play in the cell?

Back

Centrioles: Structures involved in cell division, helping to organize the mitotic spindle.

Front

What is the difference between passive and active transport?

Back

Passive Transport: Movement of substances without energy input; Active Transport: Movement of substances against their gradient, requiring energy.