Cell Transport Slides Practice

What is passive transport in cell biology?

• The movement of substances across a cell membrane without the use of energy by the cell.

• The movement of substances against the concentration gradient using cellular energy.

• The process by which cells engulf bacteria or large particles.

• Energy production within cell mitochondria.

List two examples of passive transport.

• Osmosis and diffusion

• Phagocytosis and pinocytosis

• Active transport and endocytosis

• Exocytosis and receptor-mediated endocytosis

What is active transport in cell biology?

• The movement of molecules from an area of lower concentration to an area of higher concentration using energy.

• The movement of molecules from an area of higher concentration to an area of lower concentration without using energy.

• The process by which cells digest large food particles without energy.

• The random movement of molecules within a cell to achieve equilibrium.

Which of the following is an example of active transport?

• Osmosis

• Diffusion

• Sodium-potassium pump

• Facilitated diffusion

What type of cell transport is depicted in the diagram where molecules move through protein channels and carrier proteins in the cell membrane?

• Active transport

• Passive transport

• Osmosis

• Phagocytosis

Which component in the diagram is responsible for facilitating the movement of molecules across the cell membrane without the expenditure of cellular energy?

• Protein channel

• Carrier proteins

• Extracellular space

• Intracellular space

Based on the diagram, which statement best describes the role of carrier proteins in cell transport?

• They consume ATP to move molecules.

• They move molecules against a concentration gradient.

• They assist in the movement of molecules without using cellular energy.

• They prevent any molecules from passing through the cell membrane.

What is the role of carrier proteins in the plasma membrane?

• To provide structural support to the cell membrane

• To facilitate the diffusion of ions and molecules across the membrane

• To synthesize new cellular materials

• To package and sort proteins for secretion

Which of the following is an example of a process where carrier proteins are used?

• Photosynthesis in chloroplasts

• Protein synthesis in ribosomes

• Active transport of glucose into a cell

• DNA replication in the nucleus

What type of proteins in the cell membrane bind to signal molecules and allow them to pass into the cell?

• Enzymatic proteins

• Structural proteins

• Receptor proteins

• Transport proteins