Question

which of the following statements about cells is false?
cells join together to form organelles, which then form our organs and organ systems.
although human cells are diverse in size, shape, and function, they have essentially the same organelles and general structure.
the cells in our bodies collectively carry out all of the functions necessary for us to stay alive.
cells are the most basic units of life.

Explanation:

1. Analyze the first option: Organelles are structures within cells, not formed by cells joining. Cells join to form tissues, tissues form organs, etc. So this statement is false.
2. Analyze the second option: Human cells do have similar organelles (like nucleus, mitochondria in eukaryotic cells) despite size/shape/function differences, so this is true.
3. Analyze the third option: Cells collectively perform life - sustaining functions (e.g., energy production, waste removal), so this is true.
4. Analyze the fourth option: Cells are the basic unit of life (cell theory), so this is true.

Answer:

A. Cells join together to form organelles, which then form our organs and organ systems.