Biology Cells/Cell Transport

Front

What are the three main components of the cell theory?

Back

1. All living things are made of cells. 2. Cells are the basic units of structure and function in living things. 3. New cells are produced from existing cells.

Front

What is a hypotonic solution?

Back

A hypotonic solution is one where the concentration of solutes outside the cell is lower than inside the cell, causing water to move into the cell.

Front

What is the main difference between prokaryotic and eukaryotic cells?

Back

The main difference is that eukaryotic cells have a nucleus, while prokaryotic cells do not.

Front

What type of transport requires energy (ATP)?

Back

Active transport requires energy (ATP) to move substances against their concentration gradient.

Front

What happens to a cell in a hypertonic solution?

Back

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

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, typically along the concentration gradient.

Front

Define osmosis.

Back

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

Front

What is the function of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell, providing protection and support.

Front

What is the role of ATP in cellular processes?

Back

ATP (adenosine triphosphate) serves as the primary energy carrier in cells, providing energy for various cellular activities.

Front

What occurs during endocytosis?

Back

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