Fast and Curious: Cell Transport

Front

What is endocytosis?

Back

Endocytosis is a type of active transport where a large object enters a cell by wrapping part of its membrane around it and engulfing it.

Front

What does it mean for a cell membrane to be semipermeable?

Back

A semipermeable (or selectively permeable) membrane allows some substances to pass through while blocking others.

Front

What is osmosis?

Back

Osmosis is the movement of water from an area of high concentration to an area of low concentration.

Front

What is diffusion?

Back

Diffusion is the movement of any molecule from an area of high concentration to an area of low concentration.

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not require energy and moves substances along their concentration gradient.

Front

What is exocytosis?

Back

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

Front

What is the role of the cell membrane?

Back

The cell membrane acts as a barrier that controls what enters and exits the cell, maintaining homeostasis.

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance between two areas.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move substances across the cell membrane.

Front

What is the significance of water in cell transport?

Back

Water is essential for many cellular processes and its movement (osmosis) is crucial for maintaining cell shape and function.