This organelle is a firm, protective structure/barrier that gives the cell its shape in plants, fungi, most bacteria, and some protists.

Multicellular organisms contain organ systems. Which of the following BEST describes the organs in an organ system?

This organelle manages cell functions in eukaryotic cell; contains the genetic information used to make proteins.

This organelle produces a usable form of energy for the cell through a process called cellular respiration.

This organelle is a folded membrane that forms a network of interconnected compartments in the cytoplasm; can be classified as rough or smooth.

______________ transport does not require cellular energy to occur.

Which type of organism consists of specialized cells?

Active transport ______________ energy to occur because particles move __________ the concentration gradient.

If a cell contains a nucleus, it must be a(n) ____________________.

The network of tiny rods and filaments that forms a framework for the cell is called the _________.

The movement of materials into and out of the cells is controlled by the ___________________.

The scientist(s) that is/are credited for the cell theory is/are ____________________.

The __________________ helps cells maintain homeostasis because it controls what enters and leaves the cell.