Cell Transport

Front

What is a hypertonic environment?

Back

A hypertonic environment has a lower percentage of water inside the cell than outside, causing the cell to shrink due to water moving out.

Front

What is a hypotonic environment?

Back

A hypotonic environment has a higher percentage of water outside the cell than inside, causing the cell to burst due to water moving in.

Front

What macromolecule is embedded in the lipid bilayer and helps transport molecules?

Back

Protein.

Front

What is diffusion?

Back

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

Front

What is required for the movement of materials from low concentration to high concentration?

Back

Energy (ATP).

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a semi-permeable membrane.

Front

What is the function of the cell membrane?

Back

The cell membrane regulates what enters and exits the cell, maintaining homeostasis.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of transporting molecules across a membrane via protein channels without energy.

Front

What is active transport?

Back

Active transport is the movement of molecules against their concentration gradient, requiring energy.

Front

What role do carbohydrates play in cell membranes?

Back

Carbohydrates serve as recognition sites for cell signaling and communication.