Biology Flashcards

Front

Enzyme

Back

A protein catalyst

Front

Catalyst

Back

Speeds up reactions without being used or destroyed

Front

Activation Energy

Back

Minimum energy needed for a reaction to occur

Front

Substrate

Back

The substance acted upon by an enzyme

Front

Active Site

Back

The specific region where substrate binds and reactions occur

Front

Homeostasis

Back

Maintaining balance

Front

Cell/Plasma Membrane

Back

Thin, flexible barrier around cell that controls what enters and leaves

Front

Semipermeable

Back

Allows some things to enter/exit but blocks others

Front

Phospholipid Bilayer

Back

Double layer of phospholipids that make up the cell membrane

Front

Membrane Proteins

Back

Proteins embedded in the cell membrane to help with transport