Lesson 2 Vocab Practice

Front

Organism

Back

An individual living thing

Front

Protein

Back

Building blocks for bones, muscles, cartilage, skin, and blood

Front

Cell

Back

Smallest functional building block of an organism

Front

Bacteria

Back

Unicellular organisms, no organelles, no organized nucleus

Front

Homeostasis

Back

Stabilize internal conditions amid external changes

Front

Microorganism

Back

Single-celled or multicellular, seen under a microscope

Front

Virus

Back

Microscopic agent, reproduces inside host cell

Front

Cell membrane

Back

Thin barrier forming cell boundary

Front

Permeable

Back

Allows liquids or gases to pass through

Front

Organelles

Back

Specialized structures inside a cell