T7D6 Cellular Transport

Front

What is exocytosis?

Back

Exocytosis is a type of active transport that allows materials to exit the cell by vesicles fusing with the plasma membrane.

Front

What does semi-permeability mean in the context of cellular transport?

Back

Semi-permeability refers to the property of a cell membrane that allows certain substances to pass through while blocking others.

Front

What happens to water in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the cell, causing the cell to shrink.

Front

What is the effect of placing an animal cell in a hypertonic solution?

Back

The animal cell will shrink because the concentration of solutes outside the cell is higher than inside, leading to water leaving the cell.

Front

Define hypotonic solution in relation to cellular transport.

Back

A hypotonic solution is one where the solute concentration is lower outside the cell than inside, causing water to enter the cell.

Front

What is the primary function of the cell membrane?

Back

The primary function of the cell membrane is to regulate the movement of substances in and out of the cell.

Front

How does osmosis differ from diffusion?

Back

Osmosis is the movement of water across a semi-permeable membrane, while diffusion is the movement of solutes from an area of higher concentration to an area of lower concentration.

Front

What is the role of transport proteins in cellular transport?

Back

Transport proteins facilitate the movement of substances across the cell membrane, either passively or actively.

Front

What occurs during the process of endocytosis?

Back

Endocytosis is the process by which cells engulf external substances, bringing them into the cell within vesicles.

Front

What is the significance of concentration gradients in cellular transport?

Back

Concentration gradients drive the movement of substances across membranes, with molecules moving from areas of high concentration to low concentration.