Modern cell theory states that
A) all cells are derived from preexisting cells.
B) cells are the building blocks of some organisms.
C) the chemical composition of cells varies widely from cell to cell.
D) metabolism (the chemical reactions of life) occurs mostly outside cells.
E) viruses are cellular.

Question

Quizplus · Accepted Answer

Modern cell theory, also known as the cell doctrine, states that all living organisms are composed of one or more cells, that the cell is the basic unit of life, and that all cells arise from preexisting cells. This principle is based on the observations of scientists such as Robert Hooke and Matthias Schleiden, who first recognized the importance of the cell.

Modern Cell Theory States That