Midterm Review Flashcardizz - Cell Transport

Front

What is Endocytosis?

Back

Endocytosis is the process by which a cell takes in materials by engulfing them with its cell membrane.

Front

Define Selective Permeability.

Back

Selective Permeability is the ability of the cell membrane to allow some substances to pass through while preventing others.

Front

What is Facilitated Diffusion?

Back

Facilitated Diffusion is a type of passive transport where particles move from an area of high concentration to low concentration with the help of protein channels or carrier proteins.

Front

What does Isotonic mean in terms of cell solutions?

Back

Isotonic refers to a solution that has the same concentration of solutes as the cell, resulting in no net movement of water.

Front

What happens to a cell in a Hypotonic solution?

Back

In a Hypotonic solution, water enters the cell, causing it to swell and potentially burst.

Front

What is the difference between Hypertonic and Hypotonic solutions?

Back

Hypertonic solutions have a higher concentration of solutes compared to the cell, causing water to leave the cell, while Hypotonic solutions have a lower concentration of solutes, causing water to enter the cell.

Front

What is Diffusion?

Back

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration without the need for energy.

Front

What role do protein channels play in cell transport?

Back

Protein channels facilitate the movement of specific molecules across the cell membrane, especially during facilitated diffusion.

Front

What is Exocytosis?

Back

Exocytosis is the process by which a cell expels materials by vesicles fusing with the cell membrane.

Front

How does concentration gradient affect cell transport?

Back

The concentration gradient is the difference in concentration of a substance across a space; substances move from high to low concentration, influencing passive transport.