MYP Biology Metabolism Key Definitions

A small molecule that stores and releases energy for cell processes.

A chemical process that releases energy from glucose.

Double-membrane-bound organelles found in plant cells and algae containing chlorophyll, which are the site of photosynthesis.

A gland that makes and releases hormones directly into the bloodstream.

The regulation of internal conditions to maintain a stable environment for optimal cell function.

A chemical messenger released by glands that travels in the bloodstream to target organs, where it produces a specific response.

A mechanism that reverses a change to maintain stability.

The control of water content in the body.

The extra oxygen needed after exercise to break down lactic acid.

A chemical process where light energy is used to convert carbon dioxide and water into glucose and oxygen.

A molecule on a target cell that detects and responds to a specific hormone.

Small openings in the leaf surface that allow gas exchange.