Biology: Cell Transport: Kahoot

Front

What is the role of receptor proteins in cell signaling?

Back

Receptor proteins bind to signal molecules, initiating a response within the cell.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process by which substances cross cell membranes with the assistance of special proteins, without the use of energy.

Front

What happens to a cell in a hypertonic solution?

Back

The cell loses water and shrivels due to osmosis.

Front

What is osmosis?

Back

Osmosis is the movement of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing water to move into the cell.

Front

What is active transport?

Back

Active transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy.

Front

What is the sodium-potassium pump?

Back

The sodium-potassium pump is an example of active transport that moves sodium ions out of the cell and potassium ions into the cell.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their gradient.

Front

What is the significance of concentration gradients in cell transport?

Back

Concentration gradients drive the movement of substances across membranes, influencing whether transport is passive or active.

Front

What is the function of channel proteins in facilitated diffusion?

Back

Channel proteins provide a passageway for specific molecules to cross the cell membrane.