EOC Biology RC 1

Front

What is passive transport?

Back

Passive transport is the movement of molecules across a cell membrane without the use of energy, typically moving from an area of higher concentration to an area of lower concentration.

Front

What are prokaryotic cells?

Back

Prokaryotic cells are simple, small cells that lack a nucleus and membrane-bound organelles. They have a cell wall and are typically unicellular organisms.

Front

What is a semi-permeable membrane?

Back

A semi-permeable membrane is a barrier that allows certain molecules to pass through while blocking others, facilitating selective transport.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a process where molecules move across a cell membrane with the help of transport proteins, from an area of higher concentration to an area of lower concentration.

Front

What is the function of the Golgi apparatus?

Back

The Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane against their concentration gradient, requiring energy (ATP) to do so.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules through a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What are organelles?

Back

Organelles are specialized structures within a cell that perform distinct processes, such as energy production, protein synthesis, and waste processing.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have a nucleus and various organelles.

Front

What is the sodium/potassium pump?

Back

The sodium/potassium pump is an active transport mechanism that moves sodium ions out of the cell and potassium ions into the cell, crucial for maintaining cellular function.