Front

What is endocytosis?

Back

Endocytosis is the process by which cells internalize substances from their external environment, often through mechanisms like phagocytosis (cell eating) or pinocytosis (cell drinking).

Front

What is exocytosis?

Back

Exocytosis is the process by which cells expel materials to the outside environment, involving the fusion of vesicles with the plasma membrane.

Front

What is the function of vacuoles in plant cells?

Back

Vacuoles are responsible for storage and release of macromolecules and cellular waste products, and they help maintain turgor pressure in plant cells.

Front

What is the role of the Golgi complex?

Back

The Golgi complex is a membrane-bound organelle that modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles.

Front

What type of molecule is a protein hormone?

Back

A protein hormone is a type of signaling molecule that binds to membrane proteins and does not enter the cell.

Front

Where does ATP synthesis occur in cellular respiration?

Back

ATP synthesis occurs in the cristae of the mitochondria during cellular respiration.

Front

What is the difference between phagocytosis and pinocytosis?

Back

Phagocytosis is the process of engulfing large particles or cells, while pinocytosis involves the uptake of fluids and small solutes.

Front

What is the function of lysosomes?

Back

Lysosomes are organelles that contain digestive enzymes to break down waste materials and cellular debris.

Front

What is the structure of the cell membrane?

Back

The cell membrane is composed of a phospholipid bilayer with embedded proteins, cholesterol, and carbohydrates, allowing selective permeability.

Front

What is the role of mitochondria?

Back

Mitochondria are known as the powerhouse of the cell, responsible for producing ATP through cellular respiration.