Cells and Cell Theory

Cytoplasm

• The jelly-like substance within a cell that contains organelles.

• The rigid outer layer of a plant cell.

• The control center of the cell that contains DNA.

• The site of protein synthesis in the cell.

Unicellular

• Organisms that consist of a single cell.

• Organisms that consist of multiple cells.

• Organisms that can live in extreme environments.

• Organisms that are visible to the naked eye.

Cell Membrane

• A protective barrier that surrounds the cell, controlling what enters and exits.

• A structure that provides energy to the cell.

• A component that stores genetic information.

• A site for protein synthesis.

Cell Wall

• A flexible layer that allows movement in animal cells.

• A rigid outer layer that provides support and protection to plant cells.

• A structure that stores nutrients in plant cells.

• A membrane that controls the entry and exit of substances in cells.

Organelles

• Specialized structures within a cell that perform specific functions.

• Fluid-filled sacs that store materials for the cell.

• Structures that provide energy to the cell through respiration.

• Components that protect the cell from external damage.

Multicellular

• Organisms made up of more than one cell.

• Organisms that can only exist as single cells.

• Organisms that are always microscopic.

• Organisms that reproduce asexually.

Prokaryotic

• Prokaryotic organisms lack membrane-bound nuclei.

• Prokaryotic organisms have a complex cellular structure.

• Prokaryotic organisms are always multicellular.

• Prokaryotic organisms possess membrane-bound organelles.

Eukaryotic

• Eukaryotic organisms have membrane-bound nuclei.

• Eukaryotic organisms lack a defined nucleus.

• Eukaryotic organisms are unicellular only.

• Eukaryotic organisms reproduce asexually only.

Organism

• A living thing.

• A non-living object.

• A type of plant.

• A form of energy.

Microscope

• A tool that allows you to see enlarged images of tiny images.

• A device used for measuring temperature.

• An instrument for analyzing chemical compositions.

• A machine for generating electricity.