Cell Organelles and Transport

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 diffusion?

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules through a selectively permeable membrane.

Front

What is the role of mitochondria in a cell?

Back

Mitochondria are known as the powerhouse of the cell, generating ATP through cellular respiration.

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 the endoplasmic reticulum?

Back

The endoplasmic reticulum (ER) is a network of membranes involved in protein and lipid synthesis; it comes in two forms: rough ER and smooth ER.

Front

What is active transport?

Back

Active transport is 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 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

What is a vacuole?

Back

A vacuole is a membrane-bound organelle that stores nutrients, waste products, and helps maintain turgor pressure in plant cells.

Front

What is the difference between plant and animal cells?

Back

Plant cells have a cell wall, chloroplasts, and larger vacuoles, while animal cells do not.