Quiz on Cell Biology

Cell Biology is the branch of biology that studies the structure, function, and behavior of cells — the basic units of life. Every living organism, from the smallest bacterium to the largest animal, is made up of cells. Cells can exist as independent units of life, as in unicellular organisms like amoeba, or can form complex multicellular organisms like humans. Each cell has specific parts called organelles — such as the nucleus (which controls activities), mitochondria (which produce energy), ribosomes (which make proteins), and the Golgi apparatus (which packages materials). The cell membrane controls what enters and leaves the cell, while in plants, an additional cell wall provides strength and protection. Understanding cell biology helps us grasp how life functions at its most fundamental level.