Biology Unit 3 Part 1 (For Final Review)

Front

What is osmosis?

Back

The movement of water molecules across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is a prokaryotic cell?

Back

A type of cell that lacks a nucleus and membrane-bound organelles, typically smaller and simpler than eukaryotic cells.

Front

What is a eukaryotic cell?

Back

A type of cell that has a nucleus and membrane-bound organelles, generally larger and more complex than prokaryotic cells.

Front

What is diffusion?

Back

The process by which molecules spread from areas of high concentration to areas of low concentration until equilibrium is reached.

Front

What is the function of mitochondria?

Back

The site of cellular respiration where glucose is converted into ATP, the energy currency of the cell.

Front

What is active transport?

Back

The movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Front

What is facilitated diffusion?

Back

A process of passive transport that uses transport proteins to help move molecules across the cell membrane without energy.

Front

What is a semi-permeable membrane?

Back

A membrane that allows certain molecules to pass through while blocking others, crucial for maintaining homeostasis in cells.

Front

What is isotonic solution?

Back

A solution where the concentration of solutes is equal inside and outside the cell, resulting in no net movement of water.

Front

What is endocytosis?

Back

The process by which cells engulf substances from their external environment, bringing them into the cell.